Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Yasuhiro Fujimitsu Last modified date:2024.04.18

Professor / Earth Science and Technology / Department of Earth Resources Engineering / Faculty of Engineering


Presentations
1. Amani BERRA, Yasuhiro FUJIMITSU, Status of Geothermal Development in Tanzania, International Symposium on Earth Science and Technology 2023, 2023.11.
2. Caroline LEPATU, Yasuhiro FUJIMITSU, Country Report of Papua New Guinea, International Symposium on Earth Science and Technology 2023, 2023.11.
3. Japhet TOWETT, Edwin KIRAREI, Yasuhiro FUJIMITSU, Country Report for Kenya (2), International Symposium on Earth Science and Technology 2023, 2023.11.
4. Lameck MAKORI, Yasuhiro FUJIMITSU, Country Report for Kenya (1), International Symposium on Earth Science and Technology 2023, 2023.11.
5. Pitoyo Anggit LISTYANTO, Yasuhiro FUJIMITSU, Geothermal Power Plant Development in PLN, Indonesia, International Symposium on Earth Science and Technology 2023, 2023.11.
6. Habtamu ABATNEH, Yasuhiro FUJIMITSU, Geothermal Country Report of Ethiopia, International Symposium on Earth Science and Technology 2023, 2023.11.
7. Fathia ABDI, Yasuhiro FUJIMITSU, Djibouti Country Update, International Symposium on Earth Science and Technology 2023, 2023.11.
8. Jessica Arias HERNÁNDEZ, Yasuhiro FUJIMITSU, Costar Rica Country Update, International Symposium on Earth Science and Technology 2023, 2023.11.
9. Naoto YOSHIDA, Mitsuo MATSUMOTO, Yasuhiro FUJIMITSU, Numerical Simulation of Instability in Geothermal Production Well, International Symposium on Earth Science and Technology 2023, 2023.11.
10. Caroline LEPATU, Yasuhiro FUJIMITSU, Country Report of Papua New Guinea, 日本地熱学会令和5年学術講演会, 2023.11.
11. Japhet TOWETT, Edwin KIRAREI, Yasuhiro FUJIMITSU, Country Report for Kenya (2), 日本地熱学会令和5年学術講演会, 2023.11.
12. Lameck MAKORI, Yasuhiro FUJIMITSU, Country Report for Kenya (1), 日本地熱学会令和5年学術講演会, 2023.11.
13. Amani BERRA, Yasuhiro FUJIMITSU, Status of Geothermal Development in Tanzania, 日本地熱学会令和5年学術講演会, 2023.11.
14. Habtamu ABATNEH, Yasuhiro FUJIMITSU, Geothermal Country Report of Ethiopia, 日本地熱学会令和5年学術講演会, 2023.11.
15. Pitoyo Anggit LISTYANTO, Yasuhiro FUJIMITSU, Geothermal Power Plant Development in PLN, Indonesia, 日本地熱学会令和5年学術講演会, 2023.11.
16. Fathia ABDI, Yasuhiro FUJIMITSU, Djibouti Country Update, 日本地熱学会令和5年学術講演会, 2023.11.
17. Jessica Arias HERNÁNDEZ, Yasuhiro FUJIMITSU, Costa Rica Country Update, 日本地熱学会令和5年学術講演会, 2023.11.
18. Marietta W. MUTONGA, Yasuhiro FUJIMITSU, 3D Natural State Model of Menengai East Geothermal Reservoir, Kenya, 2023 Geothermal Rising Conference, 2023.10.
19. Marietta MUTONGA, Thomas TINDELL, Kotaro YONEZU, Yasuhiro FUJIMITSU, Characteristics of Fluid Inclusions in Menengai Geothermal Field, Kenya from Wells MW-35, MW-28A & MW-10B, World Geothermal Congress 2023, 2023.09.
20. Mitsuo MATSUMOTO, Haruki OKADA, Ryuichi ITOI, Yasuhiro FUJIMITSU, Numerical Simulation of Periodic Wellbore Flow Due to the Inflow of Low-Enthalpy Fluid, 48th Stanford Geothermal Workshop, 2023.02.
21. Gilbert BETT, Yasuhiro FUJIMITSU, Analytical Description of the Production Decline at the Olkaria East Geothermal Field, Naivasha Kenya, International Symposium on Earth Science and Technology 2022, 2022.12.
22. Shunsuke ZAIMA, Jun NISHIJIMA, Keigo KITAMURA, Yasuhiro FUJIMITSU, Deep Hydrothermal System Inferred from the MT and Gravity Survey in the Hohi Geothermal Area, Central Kyushu, Japan, International Symposium on Earth Science and Technology 2022, 2022.12.
23. Gilbert Kipngetich BETT, Yasuhiro FUJIMITSU, Study of Near-surface Geothermal Activity in Olkaria, Naivasha Kenya, 日本地球惑星科学連合2022年大会, 2022.05.
24. Marietta MUTONGA, Yasuhiro FUJIMITSU, An Insight of the Subsurface through Borehole Images Case Study of MW-34 Menengai Geothermal Field, Kenya, 43rd New Zealand Geothermal Workshop, 2022.02.
25. Philip OMOLLO, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Unraveling the Subsurface Architectural Design of the Olkaria Geothermal Reservoir Using 2D and 3D MT Data Inversion, International Symposium on Earth Science and Technology 2021, 2021.11.
26. Kevin GUTIERREZ, Yasuhiro FUJIMITSU, Mitsuo MATSUMOTO, Assessment of the Current Reservoir Conditions of Momotombo Geothermal Field, Nicaragua, International Symposium on Earth Science and Technology 2021, 2021.11.
27. Haissama Osman ALI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Magnetotelluric MT Survey in Nord-Ghoubbet Geothermal Field (Djibouti), International Symposium on Earth Science and Technology 2021, 2021.11.
28. Gilbert BETT, Yasuhiro FUJIMITSU, Assessing the Geophysical Enablers for the Olkaria’s East and Southeast Fields Huge Expansion, International Symposium on Earth Science and Technology 2021, 2021.11.
29. 藤光康宏,西島潤,辻健,米津幸太郎,分山達也,糸井龍一, 東アフリカ大地溝帯の熱水系の解明-SATREPSによるケニアとの共同研究-, 日本地球惑星科学連合2021年大会, 2021.06.
30. 澤山和貴,西澤修,池田達紀,蒋飛,辻健,藤光康宏, デジタル岩石物理とエネルギー論的アプローチによる岩石亀裂の弾性波速度推定, 日本地球惑星科学連合2021年大会, 2021.06.
31. Kazuki SAWAYAMA, Fei JIANG, Tatsunori IKEDA, Takuya ISHIBASHI, Takeshi TSUJI, Yasuhiro FUJIMITSU, Hiroshi ASANUMA, Estimation of Permeability and Water Saturation from the Resistivity and Elastic Wave Velocity: Insight from Laboratory Experiment and Digital Fracture Simulation, World Geothermal Congress 2020+1, 2021.05.
32. Carlos POCASANGRE, Yasuhiro FUJIMITSU, Fidel CORTEZ, Rubén HENRIQUEZ, A Python-based Stochastic Library for Assessing Geothermal Power Potential in the Municipality of Nombre de Jesús, El Salvador, World Geothermal Congress 2020+1, 2021.04.
33. Jun NISHIJIMA, Ryo TODA, Yasuhiro FUJIMITSU, Underground Structure Delineated from Gravity and AGG Data Analysis in the Hohi Geothermal Area, Central Kyushu, Japan, World Geothermal Congress 2020+1, 2021.05.
34. Isaack KANDA, Yasuhiro FUJIMITSU, Geophysical and Geochemical Characterization of Menengai Geothermal System, Kenya, World Geothermal Congress 2020+1, 2021.04.
35. Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA, Tohru MOGI, Transition of Numerical Models for the Hydrothermal System of the Kuju Volcano, Japan, World Geothermal Congress 2020+1, 2021.07.
36. Mohamed BELHAI, Yasuhiro FUJIMITSU, Rosa Maria BARRAGAN-REYES, Tatsuto IWANAGA, Mamiko MAENO, Brahim AYAD, Fatima Zohra BOUCHAREB-HAOUCHINE, Jun NISHIJIMA, Djelloul BELHAI, Abdelhamid HAOUCHINE, Geochemical Characteristics of Thermal Fluids from Northwest Algeria, World Geothermal Congress 2020+1, 2021.04.
37. Hiroshi ASANUMA, Toru MOGI, Noriyoshi TSUCHIYA, Noriaki WATANABE, Shigemi NAGANAWA, Yasuo OGAWA, Yasuhiro FUJIMITSU, Tatsuya KAJIWARA, Kazumi OSATO, Kuniaki SHIMADA, Seiki HORIMOTO, Takashi SATO, Shigeto YAMADA, Kimio WATANABE, Japanese Supercritical Geothermal Project for Drastic Increase of Geothermal Power Generation in 2050, World Geothermal Congress 2020+1, 2021.07.
38. Samatar Abdi MOHAMED, Tatsuya WAKEYAMA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Hydrothermal Alteration Mapping Using ASTER Image of Arta, Geothermal Area of Djibouti, World Geothermal Congress 2020+1, 2021.04.
39. Yasuhiro FUJIMITSU, Brief Overview of the SATREPS Project, 11th Incubation Webinar (Kyushu University, Geothermal Development Company and Jomo Kenyatta University of Agriculture and Technology Joint Seminar), 2020.12.
40. Samatar Abdi MOHAMED, Tatsuya WAKEYAMA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Hydrothermal Alteration Mapping using ASTER Image of Arta, Geothermal Area of Djibouti, International Symposium on Earth Science and Technology 2020, 2020.11.
41. Kazuki SAWAYAMA, Fei JIANG, Takeshi TSUJI, Yasuhiro FUJIMITSU, Development of Two-phase Fracture Flow Simulation Method Using Shan-Chen Type Lattice Boltzmann Model, International Symposium on Earth Science and Technology 2020, 2020.11.
42. Hirofumi TAKAI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Tatsuya WAKEYAMA, Mitsuo MATSUMOTO, Study on the Subsurface Structure and the Hydrothermal System at Harazuru Hot Spring, Fukuoka Prefecture, International Symposium on Earth Science and Technology 2020, 2020.11.
43. 金子冬生, 大里和己, 藤光康宏, 北村圭吾, 齋藤博樹, 稲垣陽大, 豊肥地域における超臨界地熱資源の抽熱シミュレーション その1, 日本地熱学会令和2年学術講演会, 2020.11.
44. 松本光央, 糸井龍一, 藤光康宏, 周期的坑内流動現象の発生条件の数値的検討(その2), 日本地熱学会令和2年学術講演会, 2020.11.
45. 藤光康宏, 西島 潤, 水澤慶之, 九重火山の熱水系数値モデルによる重力変動観測結果のヒストリーマッチング, 日本地熱学会令和2年学術講演会, 2020.11.
46. 澤山和貴, 石橋琢也, 蒋 飛, 辻 健, 池田達紀, 西澤 修, 藤光康宏, スケールに依存しない岩石物性–浸透率関係: 地熱コアをもとにした数値亀裂による検討, 日本地熱学会令和2年学術講演会, 2020.11.
47. Samatar Abdi MOHAMED, Tatsuya WAKEYAMA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Hydrothermal Alteration Mapping using ASTER Image of Arta, Geothermal Area of Djibouti, 日本地熱学会令和2年学術講演会, 2020.11.
48. Eriya KAHWA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Subsurface Characterization of Panyimur Geothermal Prospect, NW Uganda using Magnetotelluric Data, African Rift Geothermal Conference 2020, 2020.11.
49. Jacinta ACHIENG, Yasuhiro FUJIMITSU, Multivariate Analysis as an Insight into Mechanisms and Processes Affecting Geothermal Fluids in Uganda: Towards Selecting an Appropriate Geothermometer, African Rift Geothermal Conference 2020, 2020.11.
50. 相澤広記, 内田和也, 塚島祐子, 北村圭吾, 藤光康宏, 宇津木充, 塩谷太郎, 井上寛之, 神田 径, 小山崇夫, 上嶋 誠, 吉村令慧, 山崎健一, 小松信太郎, 高倉伸一, 松島喜雄, 稲垣陽大, 齋藤博樹, 藤井勇樹, 3次元比抵抗構造から推定される九重火山群への火山性流体供給路, 日本地球惑星科学連合2020年大会, 2020.07.
51. 西島 潤, 水澤慶之, 藤光康宏, 大分県九重火山1995年噴火前後の数値シミュレーションから推定される重力変化, 日本地球惑星科学連合2020年大会, 2020.07.
52. 藤光康宏, 西島 潤, 九重火山地域の熱水系/熱構造数値モデル, 日本地球惑星科学連合2020年大会, 2020.07.
53. Ashenafi Fekadu BELETE, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Mitsuo MATSUMOTO, Updating the Conceptual Model of Tendaho Geothermal Field, Afar Region, Ethiopia, 日本地球惑星科学連合2020年大会, 2020.07.
54. Samatar Abdi MOHAMED, Tatsuya WAKEYAMA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Distribution of Hydrothermal Alteration Rock in the Arta, Geothermal Area of Djibouti Based on ASTER Image, 日本地球惑星科学連合2020年大会, 2020.07.
55. Kazuki SAWAYAMA, Takuya ISHIBASHI, Fei JIANG, Takeshi TSUJI, Yasuhiro FUJIMITSU, Correlation between Physical and Hydraulic Properties of Rock Fractures Constrained by Surface Geometry: Digital Rock Physics Approach, 日本地球惑星科学連合2020年大会, 2020.07.
56. Yasuhiro FUJIMITSU, Comprehensive Solutions for Optimum Development of Geothermal Systems in East Africa Rift Valley (Kenya), 九州大学エネルギーウィーク2020, 2020.01.
57. Hiroki SHIMADA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Geothermal Structure in the Western Part of Kirishima Volcano, International Symposium on Earth Science and Technology 2019, 2019.12.
58. Kentaro SHIMODA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Monitoring Geothermal Reservoir by Measuring Gravity Change in Ogiri Geothermal Area, International Symposium on Earth Science and Technology 2019, 2019.12.
59. Ryosuke TSUTSUI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Subsurface Structure Analysis in Beppu Area by Gravity Survey to Clarify of Hot Spring Eruption Mechanism, International Symposium on Earth Science and Technology 2019, 2019.12.
60. Tetsuya YAMAMOTO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Research on Improving Accuracy of Heat Discharge Estimation System by Observing Fumarolic Gas, International Symposium on Earth Science and Technology 2019, 2019.12.
61. Ryo TODA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Study on Elucidation of Hydrothermal System around Shishimuta Caldera, International Symposium on Earth Science and Technology 2019, 2019.12.
62. Soshi KAMITAKI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Tatsuya WAKEYAMA, A Study on Detection of Anomalous Groundwater Level Using Machine Learning, International Symposium on Earth Science and Technology 2019, 2019.12.
63. Justus MAITHYA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Three-Dimensional Gravity Modeling for Imaging the Geothermal Reservoir Border in Eburru Geothermal Field, Kenya, International Symposium on Earth Science and Technology 2019, 2019.12.
64. Kazuki SAWAYAMA, Takuya ISHIBASHI, Fei JIANG, Takeshi TSUJI, Ysuhiro FUJIMITSU, Changes in Hydraulic, Electric and Mechanical Properties with Aperture Closure: Insight from Experimental and Numerical Approaches, The 5th ISRM Young Scholars' Symposium on Rock Mechanics and International Symposium on Rock Engineering for Innovative Future, 2019.12.
65. Justus MAITHYA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Geophysical Conceptual Model and Resource Assessment of Eburru Geothermal Field, Kenya, 日本地熱学会令和元年学術講演会, 2019.11.
66. Dejene BEKELE, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Reservoir Characterization and Numerical Modeling of Aluto-Langano Geothermal Field, Ethiopia, 日本地熱学会令和元年学術講演会, 2019.11.
67. Eriya KAHWA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Dimensionality Analysis of Magnetotelluric Data from Panyimur Geothermal Prospect, North West Uganda, 日本地熱学会令和元年学術講演会, 2019.11.
68. Jacinta ACHIENG, Yasuhiro FUJIMITSU, Isotopic Variations in Thermal Waters of Panyimur Geothermal Area, 日本地熱学会令和元年学術講演会, 2019.11.
69. Samatar MOHAMED, Tatsuya WAKEYAMA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Mapping Hydrothermal Alteration Using Landsat 8 Data -A Case of Study in Arta, Djibouti-, 日本地熱学会令和元年学術講演会, 2019.11.
70. Moussa H. HASSAN, Holeh M. AWALEH, Liban I. DARAR, Yasuhiro FUJIMITSU, Geothermal Exploration Studies of Lake Abhé Areas, DJIBOUTI, 日本地熱学会令和元年学術講演会, 2019.11.
71. Bruno Pereyra QUIROGA, Yasuhiro FUJIMITSU, Integrated Drilling Services for Geothermal Project Laguna Colorada, Bolivia, 日本地熱学会令和元年学術講演会, 2019.11.
72. M. Z. G. B. MALANA, Yasuhiro FUJIMITSU, Philippines Country Update, 日本地熱学会令和元年学術講演会, 2019.11.
73. Jarquín López ENEYDA, Montano de Flores RAITY, Yasuhiro FUJIMITSU, Country Report of Nicaragua, 日本地熱学会令和元年学術講演会, 2019.11.
74. Janet OKOTH, Yasuhiro FUJIMITSU, Geothermal Development in Menengai, Kenya, 日本地熱学会令和元年学術講演会, 2019.11.
75. Woldeyohannis HADUSH, Dereje MOGES, Yasuhiro FUJIMITSU, Ethiopia Country Update, 日本地熱学会令和元年学術講演会, 2019.11.
76. Moktar B. AWALEH, Sadick B. FOURREH, Amin D. HOUSSEIN, Idil I. ADEN, Yasuhiro FUJIMITSU, Prefeasibility study for PK-20 Ambado Geothermal field, Djibouti, 日本地熱学会令和元年学術講演会, 2019.11.
77. Kazuki SAWAYAMA, Takeshi TSUJI, Yasuhiro FUJIMITSU, Coupling Approach of Lattice Boltzmann Fluid Simulation and Finite Element Analysis of Geophysical Properties: Application to Natural Rock Fracture in Geothermal Area, International Exchange and Innovation Conference on Engineering & Sciences 2018, 2019.10.
78. Researches on Utilization of Geothermal Energy by Kyushu Univerisity
Yasuhiro FUJIMITSU
Echo Techno 2019, West Japan General Exhibition Center Annex, Kitakyushu, Fukuoka, October, 2019.
79. Samatar ABDI, Tatsuya WAKEYAMA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Hydrothermal Alteration Mapping Using ASTER Image of Arta, Geothermal Area of Djibouti, 2019年度資源・素材学会北海道支部春季講演会, 2019.06.
80. Carlos Osmin POCASANGRE, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Interpretation of Gravity Data to Delineate the Geothermal Reservoir Extent and Assess the Geothermal Resource in the Municipality of Isa, Southern Kyushu, Japan, 日本地球惑星科学連合2019年大会, 2019.05.
81. Justus MAITHYA, Yasuhiro FUJIMITSU, Three-dimensional Magnetotelluric Inversion to map geothermal structures in Eburru Geothermal field, Kenya, 日本地球惑星科学連合2019年大会, 2019.05.
82. Dejene BEKELE, Yasuhiro FUJIMITSU, 3-D Inversion of Magnetotelluric data from the Aluto-Langano Geothermal Field, Ethiopia, 日本地球惑星科学連合2019年大会, 2019.05.
83. Yoshiyuki MIZUSAWA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Gravity Changes as a matching Parameter of 3D Numerical Simulation in Kuju Iwoyama, International Symposium on Earth Science and Technology 2018, 2018.11.
84. Makoto ENOKIMARU, James CANNON, Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU, Dependence of Electrical Conductivity of Geothermal Fluid on Temperature, Pressure and NaCl Concentration Using Molecular Dynamics, International Symposium on Earth Science and Technology 2018, 2018.11.
85. Kazuki SAWAYAMA, Tatsunori IKEDA, Takeshi TSUJI, Yasuhiro FUJIMITSU, Numerical Experiments of Elastic Wave Propagation through Digitalized Fractures under Various Aperture and Saturation Conditions, International Symposium on Earth Science and Technology 2018, 2018.11.
86. Carlos POCASANGRE, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Three-dimensional Gravity modeling for Defining the Underground Volume of the Hydrothermal Alteration Zone in the Eastern Part of Isa City, Kagoshima Prefecture, International Symposium on Earth Science and Technology 2018, 2018.11.
87. Justus MAITHYA, Yasuhiro FUJIMITSU, Three-dimensional Magnetotelluric Characterization of the Eburu Geothermal Field, Kenya, International Symposium on Earth Science and Technology 2018, 2018.11.
88. Dependence of Electrical Conductivity of Subcritical Fluid on Temperature, Pressure and NaCl Concentration
Makoto ENOKIMARU, James CANNON, Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU
2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
89. Transition of Numerical Models for Hydrothermal System of Kuju Volcano Constructed by Kyushu University
Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA, Toru MOGI
2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
90. Density Structure Analysis Using Gravity Survey Data and Airborne Gravity Gradiometry in Oguni Area, Kumamoto Prefecture
Kazuho SAKATA, Jun NISHIJIMA, Yasuhiro FUJIMITSU
2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
91. Investigation on the Effect of Water Saturation against Resistivity and Elastic Wave Velocity Using Digital Rock Fractures
Kazuki SAWAYAMA, Tatsunori IKEDA, Yasuhiro FUJIMITSU
2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
92. Underground Structure Inferred from Gravity Anomaly in Beppu Hot Spring Area, Oita Prefecture, Japan
Jun NISHIJIMA, Yasuhiro FUJIMITSU
2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
93. History Matching Using Gravity Changes Obtained during the 1995 Eruption of Kuju Volcano for Accuracy Improvement of 3D Numerical Simulation
Yoshiyuki MIZUSAWA, Jun NISHIJIMA, Yasuhiro FUJIMITSU
2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
94. Numerical Simulation for Evaluation of Sustainability of Hot Spring Water Production in Beppu Area
Kensho OTA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Shinji OHSAWA, Toru MOGI
2018 Annual Meeting of Geothermal Research Society of Japan, November, 2018.
95. Isaack KANDA, Yasuhiro FUJIMITSU, Geological Structures Controlling the Placement and Geometry of Heat Sources within Menengai Geothermal Field, Kenya as Evidenced by Gravity Study, 13th Society of Exploration Geophysicists of Japan (SEGJ) International Symposium, 2018.11.
96. Justus MAITHYA, Yasuhiro FUJIMITSU, Analysis and Interpretation of Gravity Data to Delineate Structural Features in Eburru Geothermal Field, Kenya, 13th Society of Exploration Geophysicists of Japan (SEGJ) International Symposium, 2018.11.
97. Carlos POCASANGRE, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Utilization of Gravity Data for Figuring Out both the Hydrothermal Alteration Zone and the Underground Structure so that Possible Geothermal Exploitation in the Municipality of Isa, Japan, 13th Society of Exploration Geophysicists of Japan (SEGJ) International Symposium, 2018.11.
98. Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU, Laboratory Measurements on Electric and Elastic Properties of Fractured Geothermal Reservoir Rocks under Simulated EGS Conditions, Geothermal Resources Council Annual Meeting 2018, 2018.10.
99. Researches on Utilization of Geothermal Energy by Kyushu Univerisity
Yasuhiro FUJIMITSU
Echo Techno 2018, West Japan General Exhibition Center Annex, Kitakyushu, Fukuoka, October, 2018.
100. Dejene Mulugeta BEKELE, Yasuhiro FUJIMITSU, Reservoir Characterization Using Well Testing Results of Aluto-Langano Geothermal Field, Ethiopia, Grand Renewable Energy 2018, 2018.06.
101. Jun NISHIJIMA, Daisuke YANAI, Yasuhiro FUJIMITSU, A Density Structure Inferred from Airborne Gravity Gradiometry Data in Kuju Geothermal Field, Central Kyushu, Japan, Grand Renewable Energy 2018, 2018.06.
102. Md. Bodruddoza MIA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Exploration and Monitoring of Hatchobaru-Otake Geothermal Field Using Aster Satellite Images, Grand Renewable Energy 2018, 2018.06.
103. Hiroshi ASANUMA, Toru MOGI, Noriyoshi TSUCHIYA, Noriaki WATANABE, Shigemi NAGANAWA, Yasuo OGAWA, Yasuhiro FUJIMITSU, Tatsuya KAJIWARA, Kazumi OSATO, Kuniaki SHIMADA, Seiki HORIMOTO, Takashi SATO, Tetsuya ITO, Shigeto YAMADA, Saki KONDO, Current Status of Studies on Supercritical Geothermal Development in Japan, Grand Renewable Energy 2018, 2018.06.
104. Justsu MAITHYA, Yasuhiro FUJIMITSU, Application of 2-D Magnetotelluric Data in Investigation of Geothermal Anomaly in Eburru Geothermal Field, Kenya, Grand Renewable Energy 2018, 2018.06.
105. Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU, Effects of Water Saturation, Fracture and Salinity on Electric and Elastic Properties of Fractured Geothermal Rocks, Grand Renewable Energy 2018, 2018.06.
106. Carlos POCASANGRE, Yasuhiro FUJIMITSU, Analysis of Gravity Data for Figuring Out Geothermal Reservoir Border and Assessment of Geothermal Potential in the Municipality of Isa, Kagoshima Prefecture, Grand Renewable Energy 2018, 2018.06.
107. Yasuhiro FUJIMITSU, Jun NISHIJIMA, Numerical Model of Futsukaichi Hot Springs, a Low-enthalpy Geothermal System in Japan, Grand Renewable Energy 2018, 2018.06.
108. Isaack Kiprono KANDA, Yasuhiro FUJIMITSU, Geochemical Modeling of Silica Oversaturated Peralkaline Volcanic Complex in Menengai Geothermal System, Kenya, Grand Renewable Energy 2018, 2018.06.
109. Dejene BEKELE, Yasuhiro FUJIMITSU, Reservoir Characterization Using Well Testing Results of Aluto-Langano Geothermal Field, Ethiopia, 平成30年度資源・素材学会北海道支部春季講演会, 2018.06.
110. Issac Kiprono KANDA, Yasuhiro FUJIMITSU, Geological Structures Controlling Fluid Flow Using Gravity Data Analysis in Menengai Geothermal System, Kenya, 日本地球惑星科学連合2018年合同大会, 2018.05.
111. Carlos Osmin POCASANGRE, Yasuhiro FUJIMITSU, Three-dimensional Gravity Modeling for Determining the Depth and Detailed Shape of the Volcanic Basement Rock in the Eastern Part of Isa Municipality, Kagoshima Prefecture, 日本地球惑星科学連合2018年合同大会, 2018.05.
112. Kazuki SAWAYAMA, Takuya ISHIBASHI, Takeshi TSUJI, Yasuhiro FUJIMITSU, Effect of Aperture Closure on Fracture Permeability: Experimental and Numerical Approaches, 15th International Workshop on WATER DYNAMICS, 2018.03.
113. Kazuki SAWAYAMA, Keigo KITAMURA, Takeshi TSUJI, Yasuhiro FUJIMITSU, Fracture Flow Characterization from Seismic and Electric Properties: Insight from Experimental and Numerical Approaches, American Geophysical Union Fall Meeting 2017, 2017.12.
114. Kazuki SAWAYAMA, Takeshi TSUJI, Keigo KITAMURA, Yasuhiro FUJIMITSU, Numerical Simulation and Laboratory Measurement of Hydraulic and Electric Properties of Digitalized Fractures, International Symposium on Earth Science and Technology 2017, 2017.12.
115. Kensho OTA, Jun NISHIJIMA, Shinji OHSAWA, Yasuhiro FUJIMITSU, Toru MOGI, Numerical Modeling to Evaluate the Sustainability of the Hot Spring Resources of the Beppu Geothermal Area in Southeastern Japan, International Symposium on Earth Science and Technology 2017, 2017.11.
116. Kazuho SAKATA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, A Conceptual Model of Fluid Flow within the Oguni Area Incorporating Gravity and Other Survey Data in GIS Software, International Symposium on Earth Science and Technology 2017, 2017.11.
117. Carlos POCASANGRE, Yasuhiro FUJIMITSU, Analysis of Preliminary Gravity Data for Figuring Out Geothermal Reservoir Border and Underground Structure in Hishikari Area, Kagoshima Prefecture, International Symposium on Earth Science and Technology 2017, 2017.11.
118. Md. Bodruddoza MIA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Thermal Activity Exploration and Monitoring of Recently Active Kirishima Volcano in the Southern Kyushu Island in Japan Using Satellite Imageries, 39th New Zealand Geothermal Workshop 2017, 2017.11.
119. Numerical Simulation of the Hydrothermal Systems for the Akakura Caldera in the South Kurikoma Geothermal Area, Northeast Japan
Daichi YOSHIOKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
120. Continuous Measurement of Complex Resistivity and Elastic Wave Velocity of Cracked Andesite Core under Fluid-Flow Test
Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
121. Numerical Simulation of Natural State for Sustainable Hot Spring Water Production in Beppu Geothermal Area, Southwestern Japan
Kensho OTA, Jun NISHIJIMA, Shinji OHSAWA, Yasuhiro FUJIMITSU, Toru MOGI
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
122. Numerical Modeling of a Non-volcanic Hydrothermal System -Futsukaichi Hot Springs Area, Fukuoka Prefecture-
Yasuhiro FUJIMITSU, Jun NISHIJIMA, Ryota KAMIMURA
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
123. Study on Influence of the Basement Structure on the Thermal Model of Kuju Volcanic Area
Koki YOSHIMATSU, Yasuhiro FUJIMITSU, Jun NISHIJIMA
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
124. Conceptual Model of the Oguni Geothermal Area Integrated Gravity Analysis with the Previous Survey Results Using GIS
Kazuho SAKATA, Yasuhiro FUJIMITSU, Jun NISHIJIMA
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
125. Md. Bodruddoza MIA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Exploration and Monitoring Heat Losses from the Beppu Thermal Area in Japan Using ASTER TIR Images, 日本地熱学会平成29年学術講演会, 2017.10.
126. The Hydrothermal System Simulation in the Kuju Area Based on the Basement Structure Estimated by the Airborne Gravity Gradiometry Data
Daisuke YANAI, Jun NISHIJIMA, Yasuhiro FUJIMITSU
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
127. Proposal of a Method for the Heat Discharge Rate Estimation and an Application to Volcano Monitoring Using Satellite Remote Sensing Techniques
Yohei MORIFUJI, Yasuhiro FUJIMITSU, Jun NISHIJIMA
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
128. Restart of JICA Geothermal Training Course at Kyushu University
Ryuichi ITOI, Yasuhiro FUJIMITSU, Rie OGATA
2017 Annual Meeting of Geothermal Research Society of Japan, October, 2017.
129. Researches on Utilization of Geothermal Energy by Kyushu Univerisity
Yasuhiro FUJIMITSU
Echo Techno 2017, West Japan General Exhibition Center Annex, Kitakyushu, Fukuoka, October, 2017.
130. Yasuhiro FUJIMITSU, Numerical Modeling for a Broad Geothermal System, 2017 International Forum on Geothermal Technology, 2017.09.
131. Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU, Effect of Water Saturation on the Electrical Impedance and Elastic Wave Velocity of Geothermal Reservoir Rocks, Joint Scientific Assembly of the International Association of Geodesy and International Association of Seismology and Physics of the Earth’s Interior 2017, 2017.08.
132. Geothermal Energy -the Gift from the Earth-
Yasuhiro FUJIMITSU
The 12th Renewable Energy 2017 Exibition, Pacifico Yokohama, Kanagawa, October, 2017.
133. Gravity Variation Measurements and Numerical Modeling for the Hydrothermal System of the Kuju Volcano
Yasuhiro FUJIMITSU, Jun NISHIJIMA
Japan Geoscience Union Meeting 2017, May, 2017.
134. Carlos Osmin POCASANGRE, Yasuhiro FUJIMITSU, Assessment of Geothermal Energy Potential from Low Enthalpy Fluid at Rural Areas in El Salvador by Using Open-Source Programming Language, 日本地球惑星科学連合2017年合同大会, 2017.05.
135. Issac Kiprono KANDA, Yasuhiro FUJIMITSU, Reactive Transport Modeling in Peralkaline Salic Volcanic Complex, Caldera-hosted Geothermal System; A Case of Menengai Volcano, Kenya, 日本地球惑星科学連合2017年合同大会, 2017.05.
136. Electrical Impedance Measurement of Geothermal Reservoir Rock under Fluid-flow Test
Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU
Japan Geoscience Union Meeting 2017, May, 2017.
137. Kazuki SAWAYAMA, Keigo KITAMURA, Yasuhiro FUJIMITSU, Measurements of Electrical Impedance and Elastic Wave Velocity of Reservoir Rock under Fluid-flow Test, European Geosciences Union General Assembly 2017, 2017.04.
138. Takashi ZAIZEN, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Subsurface Structure in Oita Hot Spring Area Inferred from Gravity Data, Eastern Kyushu, Japan, The 42nd Stanford Geothermal Workshop, 2017.02.
139. Kazuki SAWAYAMA, Keigo KITAMURA and Yasuhiro FUJIMITSU
Energy Week 2017, January, 2017.
140. Santia Ardi MUSTOFA, Md. Bodruddoza MIA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Using Landsat 8 Remote Sensing Data for Thermal Anomaly Mapping in the Pantar Geothermal Area, East Nusa Tenggara, Indonesia, International Symposium on Earth Science and Technology 2016, 2016.12.
141. Omollo Philip OMONDI, Miguel Angel Villegas ALVEREZ, Chika UMEDA, Kento NARITOMI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Precise Microgravity Measurements of the Ogiri Geothermal Field, Japan, International Symposium on Earth Science and Technology 2016, 2016.12.
142. Pocasangre CARLOS, Yasuhiro FUJIMITSU, Volumetric Geothermal Resource Assessment in El Salvador by Using Open-Source Programming Language, International Symposium on Earth Science and Technology 2016, 2016.12.
143. Isaack Kiprono KANDA, Yasuhiro FUJIMITSU, Reservoir Fluid Recharge to Menengai Geothermal System; Hydrological Constraints, International Symposium on Earth Science and Technology 2016, 2016.12.
144. Yohei MORIFUJI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Analysis of Heat Loss in Papandayan Geothermal Area Using Landsat 8 Data, International Symposium on Earth Science and Technology 2016, 2016.12.
145. Shuto ONIZUKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Application of Heat Balance Technique to Measure Heat Discharge in Mt. Papandayan Geothermal Field, West Java, Indonesia, International Symposium on Earth Science and Technology 2016, 2016.12.
146. Daisuke YANAI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Constructing the 3D Subsurface Density Model of the Kuju Area by Using Gravity Survey Data, International Symposium on Earth Science and Technology 2016, 2016.12.
147. Daichi YOSHIOKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Estimation of the Geothermal Resources of a Caldera in Tohoku-region, International Symposium on Earth Science and Technology 2016, 2016.12.
148. Yuki YAMAURA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, The Study of Earthquake Prediction Using Groundwater in Fukuoka, International Symposium on Earth Science and Technology 2016, 2016.12.
149. Takashi ZAIZEN, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Estimation of Subsurface Structure in Oita Fault System Inferred from Gravity Data, International Symposium on Earth Science and Technology 2016, 2016.12.
150. Shoji YAMASHITA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Constructing the Subsurface Model of the Kego Fault Zone from Dense Gravity Data, International Symposium on Earth Science and Technology 2016, 2016.12.
151. Fluid Flow Monitoring and Modeling Using Precise Gravity Measurements in Ogiri Geothermal Field
Chika UMEDA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Junichi TAKAYAMA, Masato HIRAGA and Satoru HIGUCHI
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
152. Analysis of Subsurface Structure and Numerical Simulation in Futsukaichi Hot Springs Area
Ryota KAMIMURA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
153. The Hydrothermal System Modeling in Western Part of Kirishima Geothermal Area
Hiroki NAGAISHI, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
154. Three-Dimensional Fluid Flow Modeling in Beppu
Kento NARITOMI, Jun NISHIJIMA, Shinji OHSAWA and Yasuhiro FUJIMITSU
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
155. Impedance Measurement of Cracked Rock Core under Fluid-Flow Test
Kazuki SAWAYAMA, Keigo KITAMURA and Yasuhiro FUJIMITSU
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
156. Numerical Simulation of the Hydrothermal System of Calderas in Tohoku-region
Daichi YOSHIOKA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
157. Constructing the Subsurface Density Model of the Kuju Area and Comparing the Result with the AGG Result
Daisuke YANAI, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
158. Gravity Survey at the Hot Springs Area in the Southwestern Part of Kirishima Volcanoes
Yasuhiro FUJIMITSU and Jun NISHIJIMA
2016 Annual Meeting of Geothermal Research Society of Japan, October, 2016.
159. Researches on Utilization of Geothermal Energy by Kyushu Univerisity
Yasuhiro FUJIMITSU
Echo Techno 2016, October, 2016.
160. 藤光 康宏, Human Resources Development for Geothermal Development, Tokyo International Conference on African Development (TICAD) VI Side Event “Towards Affordable and Clean Energy in Africa”, 2016.08.
161. Gravity Surveys in Southwestern Part of the Kirishima Volcanic Area
Yasuhiro FUJIMITSU and Jun NISHIJIMA
Japan Geoscience Union Meeting 2016, May, 2016.
162. Jun NISHIJIMA, Chika UMEDA, Yasuhiro FUJIMITSU, Jun-ichi TAKAYAMA, Naoto HIRAGA, Satoru HIGUCHI, Repeat Absolute and Relative Gravity Measurements for Geothermal Reservoir Monitoring in Ogiri Geothermal Field, Southern Kyushu, Japan, 5th ITB International Geothermal Workshop 2016, 2016.03.
163. Hiroki NAGAISHI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, The Hydrothermal System Modeling in Northwestern Part of Kirishima Geothermal Area, International Symposium on Earth Science and Technology 2015, 2015.12.
164. Chika UMEDA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Junichi TAKAYAMA, Naoto HIRAGA, Satoru HIGUCHI, Research on Precise Gravity Measurements for Geothermal Reservoir Monitoring in Ogiri Geothermal Field, International Symposium on Earth Science and Technology 2015, 2015.12.
165. Kento NARITOMI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, A Monitoring of Hot Spring Aquifer using Repeated Microgravity Measurements in Northern Part of Beppu, Japan, International Symposium on Earth Science and Technology 2015, 2015.12.
166. Ryota KAMIMURA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Estimation of Subsurface Structure in Futsukaichi Hot Springs Area by Geophysical Explorations, International Symposium on Earth Science and Technology 2015, 2015.12.
167. Shuto ONIZUKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Reparation of Automated Continual Measurement System for Micrometeorological Conditions and Improvement of the Heat Balance Technique for High-accuracy Heat Discharge Measurement, International Symposium on Earth Science and Technology 2015, 2015.12.
168. Kento NARITOMI, Jun NISHIJIMA, Shinji OHSAWA, Yasuhiro FUJIMITSU, Monitoring of a Hot Spring Aquifer using Repeated Microgravity Measurements in the Northern Part of Beppu, Japan, 37th New Zealand Geothermal Workshop 2015, 2015.11.
169. Evaluation of Soil Thermal Conductivity by Using Geophysical Surveys
Kenji KUBOTA, Koichi SUZUKI and Yasuhiro FUJIMITSU
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
170. Research on Precise Gravity Measurements for Fluid Flow Monitoring in Ogiri Geoth
Chika UMEDA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Jun-ichi TAKAYAMA, Naoto HIRAGA and Satoru HIGUCHI
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
171. Numerical Simulation of the Hydrothermal System in Northwestern Part of Kirishima Geothermal Area
Hiroki NAGAISHI, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
172. Repeated Microgravity Measurements for Monitoring Hot Spring Aquifer in Northern Part of Beppu, Japan
Kento NARITOMI, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
173. Analysis of Subsurface Structure in Futsukaichi Hot Springs Area by Geophysical Explorations
Ryota KAMIMURA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
174. Reparation of Automated Continual Measurement System for Micrometeorological Conditions and Investigation of Heat Discharge Meas
Shuto ONIZUKA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
175. The Experimental Study Aimed for Grasping the Behavior of Reinjiecting Hot Water in Rock Core Samples
Shintaro OGAWA, Keigo KITAMURA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
176. Volcanic Activity Observation and Numerical Model of Kuju Iwo-yama, Kyushu, Japan
Naoaki OGATA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
177. Discussion about Possible Existence of Supercritical Fluids in the Hydrothermal Systems of Volanoes by Numerical Modeling
Yasuhiro FUJIMITSU and Jun NISHIJIMA
2015 Annual Meeting of Geothermal Research Society of Japan, October, 2015.
178. Kento NARITOMI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, A Monitoring of Hot Spring Aquifer using Repeated Microgravity Measurements in Northern Part of Beppu, Japan, 8th International Conference on Geological and Geo-resources engineering & 7the Mineral Symposium 2015, 2015.09.
179. Ryota KAMIMURA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Estimation of Subsurface Structure in Futsukaichi Hot Springs Area, 8th International Conference on Geological and Geo-resources engineering & 7the Mineral Symposium 2015, 2015.09.
180. Shuto ONIZUKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Reparation of Automated Continual Measurement System for Micrometeorological Conditions and Improvement of the Heat Balance Technique for High-accuracy Heat Discharge Measurement, 8th International Conference on Geological and Geo-resources engineering & 7the Mineral Symposium 2015, 2015.09.
181. Numerical Modeling for a Broad Geothermal System of Kuju Volcano
Yasuhiro FUJIMITSU, Yohei ITO, Jun NISHIJIMA and Daisuke OKA
Japan Geoscience Union Meeting 2015, May, 2015.
182. Mohamed BELHAI, Yasuhiro FUJIMITSU, Fatima Zohra BOUCHAREB-HAOUCHINE, Jun NISHIJIMA, Geology, Geothermometry, Isotopes and Gas Chemistry of the Northern Algerian Geothermal System, World Geothermal Congress 2015, 2015.04.
183. Yasuhiro FUJIMITSU, Yohei ITO, Jun NISHIJIMA, Daisuke OKA, Numerical Modeling of Hydrothermal Systems around Kuju Volcanic Field -an Attempt of Numerical Modeling for a Broad Geothermal System-, World Geothermal Congress 2015, 2015.04.
184. Jun NISHIJIMA, Daisuke OKA, Satoru HIGUCHI, Yasuhiro FUJIMITSU, Jun-ichi TAKAYAMA, Naoto HIRAGA, Repeat Microgravity Measurements Using Absolute and Relative Gravimeter for Geothermal Reservoir Monitoring in Ogiri Geothermal Power Plant, South Kyushu, Japan, World Geothermal Congress 2015, 2015.04.
185. Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Yoichi FUKUDA, Makoto TANIGUCHI, Hybrid Gravimetry for Optimization Time Lapse Monitoring Data: A Case Study in Kamojang Geothermal Field, World Geothermal Congress 2015, 2015.04.
186. Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sustainable Energy Development and Water Supply Security in Kamojang Geothermal Field: The Energy-Water Nexus, America Geoscience Union Fall Meeting 2014, 2014.12.
187. Mohamed BELHAI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Messaouda REZIG, The Northeastern Algeria Geothermal System: An Evidence of Crustal Source of the Geothermal Fluid by Helium Isotope Composition, International Symposium on Earth Science and Technology 2014, 2014.12.
188. Naoaki OGATA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Heat Discharge Changes of Kuju Volcano and Comparison of Some Observed Data with Results of Numerical Modeling, International Symposium on Earth Science and Technology 2014, 2014.12.
189. Shintaro OGAWA, Keigo KITAMURA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, The Relationship between the Percentage of Anhydrite in Rock Core and the Velocity of Elastic Waves in the Ogiri Area in Kagoshima Prefecture, International Symposium on Earth Science and Technology 2014, 2014.12.
190. Kenji KUBOTA, Koichi SUZUKI, Yasuhiro FUJIMITSU, Estimation of Soil Thermal Conductivity by Geophysical Surveys -Relationship between Thermal Conductivity and Electrical Resistivity-, International Symposium on Earth Science and Technology 2014, 2014.12.
191. Yuuka KAWABUCHI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, A Reservoir Monitoring and Modelling Using Repeat Microgravity Measurements at Ohaaki Geothermal Field, 36th New Zealand Geothermal Workshop 2014, 2014.11.
192. Marnel Arnold R. RATIO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Masahiko FUJII, Makoto TANIGUCHI, A Case Study of Impacts, Risks and Vulnerabilities of the Local Community of Makiling-Banahaw Geothermal Complex, Philippines, 36th New Zealand Geothermal Workshop 2014, 2014.11.
193. Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Application of A10 Absolute Gravimeter for Precise Monitoring in Kamojang Geothermal Field, Indonesia, 日本地熱学会平成26年学術講演会, 2014.10.
194. A Reservoir Monitoring and Modeling Using Repeat Microgravity Measurements at Ohaaki Geothermal Field, New Zealand
Yuuka KAWABUCHI, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2014 Annual Meeting of Geothermal Research Society of Japan, October, 2014.
195. Analysis of Steam and Heat Discharge Rates from Kuju Volcano Using the PIV Measurement and Comparison between the Numerical Model and Results of Survey
Naoaki OGATA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2014 Annual Meeting of Geothermal Research Society of Japan, October, 2014.
196. Numerical Modeling of Volcanic Carbon Dioxide Emission from Kuju Volcano, Japan
Yasuhiro FUJIMITSU, Norihide MAEDA, Sachio EHARA and Tetsuro NODA
2014 Annual Meeting of Geothermal Research Society of Japan, October, 2014.
197. Three-dimensional Geothermal Modeling around Kuju Volcano
Yohei ITO, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2014 Annual Meeting of Geothermal Research Society of Japan, October, 2014.
198. Hydrothermal Modeling in Kirishima Hot Spring Village, Kagoshima
Yusaku YONEKURA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2014 Annual Meeting of Geothermal Research Society of Japan, October, 2014.
199. Yasuhiro FUJIMITSU, Jun NISHIJIMA, Gravity Surveys in Kurume City, Fukuoka, Japan for Subsurface Structure of Non-volcanic Hydrothermal Systems, Grand Renewable Energy 2014, 2014.07.
200. Yusaku YONEKURA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Interpretation of the Hydrothermal Systems in Southwestern Part of Kirishima Volcanic Area, Grand Renewable Energy 2014, 2014.07.
201. Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Gravity Monitoring and Modeling of the Takigami Geothermal System, Oita Prefecture, Japan, Grand Renewable Energy 2014, 2014.07.
202. Yohei ITO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Thermal Modeling around Kuju Volcanic Field, Grand Renewable Energy 2014, 2014.07.
203. Marnel Arnold R. RATIO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Masahiko FUJII, Makoto TANIGUCHI, Perceived Knowledge and Social Acceptance of Geothermal Energy of the Local Community in Makiling-Banahaw Geothermal Complex, Grand Renewable Energy 2014, 2014.07.
204. Marnel Arnold R. RATIO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Masahiko FUJII, Makoto TANIGUCHI, Social Acceptability of Geothermal Energy in the Philippines: A case study of Makiling-Banahaw Geothermal Complex, Sustainability in the Water-Energy-Food Nexus, 2014.05.
205. Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Shin YOSHIKAWA, Tsuneomi KAGIYAMA, Yoichi FUKUDA, Combined Absolute and Relative Gravity Measurement For Microgravity Monitoring In Aso Volcanic Field, European Geosciences Union General Assembly 2014, 2014.05.
206. Yusaku YONEKURA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Interpretation of the Hydrothermal System in Kirishima Hot Spring Village, Southern Kyushu, Japan, European Geosciences Union General Assembly 2014, 2014.05.
207. Heat Balance Technique under the Condition that the influence of Solar Radiation Can Be Negligible
Yasuhiro FUJIMITSU and Jun NISHIJIMA
Japan Geoscience Union Meeting 2014, April, 2014 .
208. Maryati PRATIWI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Gravity Monitoring at Takigami Geothermal Area, Oita Prefecture, Japan, 日本地球惑星科学連合2014年合同大会, 2014.04.
209. Ground Deformation around Ohaaki Geothermal Field, New Zealand Inferred from Persistent Scatterer SAR Interferometry
Kazuya ISHITSUKA, Takeshi TSUJI, Toshifumi MATSUOKA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
Japan Geoscience Union Meeting 2014, April, 2014 .
210. Mohamed BELHAI, Yasuhiro FUJIMITSU, Fatima Zohra BOUCHAREB-HAOUCHINE, Tatsuto IWANAGA, Masami NOTO, Geochemistry of the North Western Algerian Geothermal System, The 39th Stanford Geothermal Workshop, 2014.02.
211. Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Shin YOSHIKAWA, Tsuneomi KAGIYAMA, Takahiro OHKURA, Monitoring Geothermal Activity at Aso Volcano, Japan, After Small Eruption in May 2011, The 39th Stanford Geothermal Workshop, 2014.02.
212. Mohamed BELHAI, Yasuhiro FUJIMITSU, Fatima Zohra BOUCHAREB-HAOUCHINE, Geochemistry of the Hammam Righa Thermal Manifestation North-Central Part of Algeria, International Symposium on Earth Science and Technology 2013, 2013.12.
213. Yohei ITO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Thermal Modeling Focused on Fault Structure of Kuju Volcano, International Symposium on Earth Science and Technology 2013, 2013.12.
214. Marnel Arnold Racelis RATIO, Yasuhiro FUJIMITSU, Challenges of Geothermal Energy Development in the Philippines from Social and Political Viewpoints, International Symposium on Earth Science and Technology 2013, 2013.12.
215. Yuuka KAWABUCHI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, A Reservoir Monitoring Using Repeat Microgravity Measurements at Ohaaki Geothermal Field, International Symposium on Earth Science and Technology 2013, 2013.12.
216. Yusaku YONEKURA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Interpretation of the Hydrothermal System in Southwestern Part of Kirishima Volcano, International Symposium on Earth Science and Technology 2013, 2013.12.
217. Mohamed BELHAI, Yasuhiro Fujimitsu, Fatima Zohra BOUCHAREB-HAOUCHINE, Tatsuto IWANAGA, Masami NOTO, Reservoir Estimation of the Low Enthalpy North Western Algerian Geothermal System, The 10th International Symposium on Novel Carbon Resource Sciences, 2013.12.
218. Hybrid Micro-gravity Measurement at Ogiri Geothermal Power Plant -Gravity Changes before and after the 2013 Regular Maintenance-
Jun NISHIJIMA, Daisuke OKA, Satoru HIGUCHI, Yasuhiro FUJIMITSU, Kazunari NAWA, Junichi TAKAYAMA and Naoto HIRAGA
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
219. Numerical Simulation of the Takigami Geothermal System inferred from Gravity Monitoring, Oita Prefecture, Japan
Daisuke OKA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
220. Utilization of GIS for Modeling of Hydrothermal System in the Western Part of Kirishima Volcanic Area
Satoru HIGUCHI, Jun NISHIJIMA, Daisuke OKA and Yasuhiro FUJIMITSU
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
221. New Analytical Method for the Heat Balance Technique -In the Case that the Influence of Insolation can be Negligible-
Yasuhiro FUJIMITSU and Shohei OSHIKATA
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
222. Thermal Modeling on Fault Structure of Kuju Volcano
Yohei ITO, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
223. Interpretation of the Hydrothermal Systems in Southwestern Part of Kirishima Volcanic Area
Yusaku YONEKURA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
224. A Reservoir Monitoring Using Repeat Microgravity Measurements at Ohaaki Geothermal Field
Yuuka KAWABUCHI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Greg BIGNALL, Fabian SEPULVEDA and Kerin BROCKBANK
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
225. Mohamed BELHAI, Yasuhiro FUJIMITSU, Fatima Zohra BOUCHAREB-HAOUCHINE, Geochemistry and Mineral Saturation of the Hammam Righa Low Enthalpy Geothermal Reservoir, North-Central Part of Algeria, 日本地熱学会平成25年学術講演会, 2013.11.
226. Marnel Arnold Racelis RATIO, Yasuhiro FUJIMITSU, Social and Political Challenges of Geothermal Energy Development in the Philippines, 日本地熱学会平成25年学術講演会, 2013.11.
227. Numerical Models before and after the 1995 Phreatic Eruption of Kuju Volcano, Central Kyushu, Japan
Yasuaki KAWATA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2013 Annual Meeting of Geothermal Research Society of Japan, November, 2013.
228. Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Shin YOSHIKAWA, Tsuneomi KAGIYAMA, Takahiro OHKURA, Mass Variation of Hydrothermal Dynamics beneath Aso Volcano, Southwest Japan, 日本地熱学会平成25年学術講演会, 2013.11.
229. 藤光 康宏, 西島 潤, 地熱系の解明を目指して, EUIJ九州 第3回年次国際会議, 2013.11.
230. Yasuhiro Fujimitsu, Norihide MAEDA, Sachio EHARA, Tetsuro NODA, Estimation of Carbon Dioxide Emission from Kuju Volcano, Japan, and Its Numerical Modeling, IAVCEI 2013 Scientific Assembly in Kagoshima, 2013.07, Kuju Volcano is located in Kyushu and one of the active volcanoes in Japan. In order to infer the mass balance and energy balance of the hydrothermal system in the Kuju volcanic area, we tried to estimate volcanic CO2 emission and to construct a numerical model of the hydrothermal system of Kuju Volcano.
We considered four forms of volcanic CO2 emission; from the fumaroles, the bare area around the fumaroles, the flank by the soil gas, and some hot springs at the foot of the volcano. We adopted the value of about 166 t/day from the plumes of Kuju Volcano estimated by Ehara et at. (1981). On the other hand, Itoi (1993) shows the distribution of soil gas CO2 concentration in the bare area around the fumaroles. In our previous study (Araragi et al., 2008), the relationship between soil gas CO2 concentration measured by the Kitagawa Gas Detector Tube System and CO2 flux measured by a CO2 flux meter in Kuju Volcano was found. Therefore, the CO2 concentration values shown by Itoi (1993) were converted into the CO2 flux values, and about 0.8 t/day of the volcanic CO2 emission was estimated. We measured soil gas CO2 concentration at 60 points on the flank of the volcano by the Kitagawa Gas Detector Tube System and collected 15 soil gas samples to conduct the carbon isotope analysis to identify the origin of the CO2. As a result, we concluded that the volcanic CO2 emission from the flank was 0 t/day. And for the CO2 emission from the hot springs at the foot of the volcano, the hot water discharge rate and the average CO2 concentration in the carbonated water of the Nagayu Hot Springs area was adopted. Then about 5.0 t/day of the volcanic CO2 emission from Nagayu Hot Springs was estimated. These results show that the volcanic CO2 emissions by the plumes from the fumaroles and by the carbonated water from a hot springs area are dominant in Kuju Volcano.
In order to construct a numerical model of the hydrothermal system of Kuju Volcano, we used a geothermal simulator STAR Version 9 (Pritchett, 1989) that can treat the components of H2O and CO2 but has the limitations of temperature from 0 to 350 deg. C and pressure from 1 to 600 bars. The modeling area has a horizontal extension of 25 km (E-W) and 15 km (N-S), and a vertical extension from -500 m asl to the ground surface. Finally, we constructed a numerical model, which explains the heat discharge rate and CO2 emission rate by the plumes from the fumaroles and the CO2 emission rate from the Nagayu Hot Springs area, by trial and error. This numerical model also indicates that the volcanic CO2 emission is dominated by the gas from the fumaroles and hot water from Nagayu Hot Springs..
231. Marnel Arnold Racelis RATIO, Yasuhiro Fujimitsu, Geothermal Energy Development in the Philippines, International Workshop on Research Institute for Humanity and Nature: Human-Environmental Security in Asia-Pacific Ring of Fire: Water-Energy-Food Nexus, 2013.07.
232. Yasuhiro Fujimitsu, Precise Repeat Gravity Measurement for Estimation of Mass Balance in a Geothermal Reservoir, 2013 APEC Workshop on Geothermal Energy Development, 2013.06, Precise repeat gravity measurement, which is also called as “repeat microgravity measurement”, is one of the suitable methods for geothermal reservoir monitoring. In a geothermal power station area, the production and reinjection of geothermal fluid cause mass movement and redistribution, which can cause measurable gravity changes on the ground surface. And the mass balance in the geothermal reservoir, especially the relation between production and recharge of the geothermal fluid, can be estimated from the temporal gravity changes measured on the ground surface..
233. Gravity Changes around Ito Campus, Kyushu University by Using Relative and Absolute
Gravity Measurement
Jun NISHIJIMA, Yasuhiro FUJIMITSU and Yoichi FUKUDA
Japan Geoscience Union Meeting 2013, May, 2013 .
234. Estimation of Volcanic Carbon Dioxide Emission Rate from Kuju Volcano, Japan
Yasuhiro FUJIMITSU, Norihide MAEDA, Sachio EHARA and Tetsuro NODA
Japan Geoscience Union Meeting 2013, May, 2013 .
235. Modeling of Geothermal System from Gravity Monitoring at the Takigami Geothermal
Field, Oita Prefecture, Japan
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Yoichi FUKUDA
Japan Geoscience Union Meeting 2013, May, 2013 .
236. Yayan SOFYAN, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Shin YOSHIKAWA, Tsuneomi KAGIYAMA, Repeated Gravity Measurement for Hydrothermal Monitoring beneath Aso Volcano, 日本地球惑星科学連合2013年合同大会, 2013.05.
237. Yasuhiro Fujimitsu, Simulation Technologies for JBBP, 10th International Workshop on Water Dynamics & ICDP Japan Beyond-Brittle Project, 2013.03, Even in JBBP, existing HDR simulation techniques are fundamentally applicable because the fractures are created in a brittle area. However, when the well-known HDR simulator Geocrack (Swenson and Hardman, 1997) or D/SC (Tezuka and Watanabe, 2000) is applied to JBBP, we will encounter two problems. One is high temperature especially in the early stage of fracture development. Unfortunately, current version of Geocrack and D/SC cannot treat supercritical water. But techniques for treatment of supercritical water has already adopted by some geothermal reservoir simulators (e.g. HYDROTHERM (Hayba and Ingebritsen, 1994), and the supercritical module of TOUGH2 (Pruess, 1991) and STAR (Pritchett, 1995)), and the techniques are applicable to Geocrack and D/SC. The other problem is fracture modeling. For example, treatment of fractures in D/SC is excellent. However, it is expected to be difficult to acquire some core samples or to observe the wall surface of the wells drilled in JBBP. Therefore, information on the fractures for deterministic and stochastic fracture modeling is hard to obtain. For solving the problem, modeling techniques for fracturing in shale gas reservoirs are expected to be informative..
238. Yasuaki KAWATA, Jun Nishijima, Yasuhiro Fujimitsu, Numerical Modeling of 1995 Phreatic Eruption Processes of Kuju Volcano, Central Kyushu, Japan, Kick-off Seminar on ASEAN-Japan BUILD-UP Cooperative Education Program for Global Human Resource Development in Earth Resources Engineering, 2013.01.
239. Satoru HIGUCHI, Jun Nishijima, Yasuhiro Fujimitsu, Improvement of a Numerical Model and Estimation of Geothermal Resources Using GIS in a Hot Spring Area, Kick-off Seminar on ASEAN-Japan BUILD-UP Cooperative Education Program for Global Human Resource Development in Earth Resources Engineering, 2013.01.
240. Taiki ARIMA, Yasuhiro Fujimitsu, Jun Nishijima, Estimation of Subsurface Structure in Kego Faults System from Gravity Data, Kick-off Seminar on ASEAN-Japan BUILD-UP Cooperative Education Program for Global Human Resource Development in Earth Resources Engineering, 2013.01.
241. Jun Nishijima, Yasuhiro Fujimitsu, Daisuke OKA, Yoichi FUKUDA, Makoto TANIGUCHI, Groundwater Level Monitoring Using Hybrid Gravity Measurements, American Geophysical Union Fall Meeting 2012, 2012.12.
242. Daisuke OKA, Yasuhiro Fujimitsu, Jun Nishijima, Yoichi FUKUDA, Geothermal Reservoir Monitoring by Using the Gravity Change in the Takigami Geothermal Area, Oita Prefecture, Japan, The 9th International Symposium on Novel Carbon Resource Sciences, 2012.11.
243. Md. Bodruddoza MIA, Yasuhiro Fujimitsu, Estimation of Heat Discharge Rate using Landsat 7 ETM+ Thermal Infrared Data at Kuju Fumarolic Area in Japan, The 9th International Symposium on Novel Carbon Resource Sciences, 2012.11.
244. Numerical Modeling of the Hydrothermal Systems Targeted for the Hot Springs Areas in Shimabara Peninsula
Hiroaki KOGA, Yasuhiro FUJIMITSU and Sachio EHARA
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
245. Modeling of Hydrothermal System of Kuju Volcano Region Based on Evaluation of CO2 Emission
Norihide MAEDA, Yasuhiro FUJIMITSU, Sachio EHARA and Tetsuro NODA
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
246. Gravity Surveys of Minoh Fault -Relationship between Subsurface Structure of the Fault and Hot Springs-
Yasuhiro FUJIMITSU and Jun NISHIJIMA
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
247. Md. Bodruddoza MIA, 藤光 康宏, Use of Landsat TM Thermal Infrared Data to Monitor Heat Flow before and after Eruption of Kuju Fumaroles in 1995, 日本地熱学会平成24年学術講演会, 2012.10.
248. Improvement of a Numerical Model and Estimation of Geothermal Resources Using GIS in a Hot Spring Area
Satoru HIGUCHI, Jun NISHIJIMA and Yasuhiro FUJIMITSU
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
249. Hybrid Micro-gravity Measurement at Ogiri Geothermal Power Plant -Gravity Correction Caused by Shallow Groundwater Level Change-
Jun NISHIJIMA, Yasuhiro FUJIMITSU, Daisuke OKA, Junichi TAKAYAMA and Naoto HIRAGA
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
250. Geothermal Reservoir Monitoring in Kamojang Geothermal Area Using Hybrid Precise Gravity Measurement
Yoshiaki WADA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Yoichi FUKUDA and Yayan SOFYAN
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
251. Accuracy Improvement of Heat Discharge Measurement by the Heat Balance Method
Shohei OSHIKATA and Yasuhiro FUJIMITSU
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
252. Numerical Modeling of Geothermal System at the Takigami Geothermal Field, Oita Prefecture, Japan
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Yoichi FUKUDA
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
253. Reservoir Behavior Inferred from Gravity Changes in the Yamagawa Geothermal Field
Hiroki SAITO, Takayuki WADA, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Hirotsugu FUKUYAMA
2012 Annual Meeting of Geothermal Research Society of Japan, October, 2012.
254. Md. Bodruddoza MIA, Yasuhiro Fujimitsu, Chris J. BROMLEY, Estimation and Monitoring Heat Discharge Rates Using Landsat ETM+ Thermal Infrared Data: a Case Study in Unzen Geothermal Field, Kyushu, Japan, SPIE Asia-Pacific Remote Sensing 2012, 2012.10.
255. Md. Bodruddoza MIA, Md. Nuruzzaman, Yasuhiro Fujimitsu, Effect of Upstream Dams of Teesta River on Surface Water Bodies in Northwest Bangladesh: A Satellite Remote Sensing Approach, 3rd International Conference on Environmental Aspects of Bangladesh, Kitakyushu (ICEAB 2012), 2012.10.
256. Satoru HIGUCHI, Jun Nishijima, Yasuhiro Fujimitsu, Integration of Geothermal Exploration Data and Numerical Simulation Data Using GIS in a Hot Spring Area, International Symposium on Earth Science and Technology 2012, 2012.09.
257. Taiki ARIMA, Yasuhiro Fujimitsu, Jun Nishijima, Estimation of Subsurface Structure in Western Fukuoka City from Gravity Data, International Symposium on Earth Science and Technology 2012, 2012.09.
258. Daisuke OKA, Yasuhiro Fujimitsu, Jun Nishijima, Yoichi FUKUDA, Makoto TANIGUCHI, Mass Balance from Gravity in the Takigami Geothermal Reservoir, Oita Prefecture, Japan, International Symposium on Earth Science and Technology 2012, 2012.09.
259. Md. Bodruddoza MIA, Yasuhiro Fujimitsu, Landsat Thermal Infrared Based Monitoring of Heat Losses from Kuju Fumaroles Area in Japan, International Symposium on Earth Science and Technology 2012, 2012.09.
260. Investigations for the Hydrothermal System of the Yumugi Area in the Kuchinoerabujima
Volcano
Yasuhiro FUJIMITSU, Sachio EHARA, Jun NISHIJIMA, Takeshi KITAJIMA, Daisuke OKA, Masanori KOGA, Norihide MAEDA, Hiroki KAI, Masahide KOJO and Hiroaki KOGA
Japan Geoscience Union Meeting 2012, May, 2012 .
261. Evaluation of Geothermal Reservoir from the Gravity Changes at the Takigami Geothermal
Field, Oita Prefecture, Japan
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yoichi FUKUDA and Makoto TANIGUCHI
Japan Geoscience Union Meeting 2012, May, 2012 .
262. Daisuke OKA, Yasuhiro Fujimitsu, Jun Nishijima, Yoichi FUKUDA, Makoto TANIGUCHI, Mass Balance Estimation from the Gravity Change at the Takigami Geothermal Reservoir, Oita Prefecture, Japan, European Geosciences Union General Assembly 2012, 2012.04.
263. Heat Flux Monitoring Using Satellite Based Imagery at Karapiti (Craters of the Moon) Fumarole Area, Taupo, New Zealand
Md. Bodruddoza MIA, Chris J. BROMLEY, Yasuhiro FUJIMITSU
The 37th Stanford Geothermal Workshop, Stanford, USA, January, 2012.
264. Evaluation of Geothermal Reservoir Mass Change from the Gravity Change at the Takigami Geothermal Area, Oita Prefecture, Japan
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yoichi FUKUDA and Makoto TANIGUCHI
The 37th Stanford Geothermal Workshop, Stanford, USA, January, 2012.
265. Accuracy Evaluation of Heat Balance Technique -Comparison with Measured Values Using a Sheet Heating Element-
Shohei OSHIKATA and Yasuhiro FUJIMITSU
2011 Annual Meeting of Geothermal Research Society of Japan, November, 2011.
266. Hybrid Micro-gravity Measurement at Ogiri Geothermal Power Plant -Gravity Changes before and after the Regular Maintenance-
Yasuhiro FUJIMITSU, Jun NISHIJIMA, Daisuke OKA and Junichi TAKAYAMA
2011 Annual Meeting of Geothermal Research Society of Japan, November, 2011.
267. Mass Variation in Outcome to High Production Activity in Kamojang Geothermal Field, Indonesia; A Reservoir Monitoring with Absolute Gravimetry
Yayan SOFYAN, Yustin KAMAH, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sachio EHARA, Yoichi FUKUDA and Makoto TANIGUCHI
2011 Annual Meeting of Geothermal Research Society of Japan, November, 2011.
268. Evaluation of Geothermal Reservoir from the Gravity Change at the Takigami Geothermal Field, Oita Prefecture, Japan
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yoichi FUKUDA and Makoto TANIGUCHI
2011 Annual Meeting of Geothermal Research Society of Japan, November, 2011.
269. A Study on Evaluation of Complex Lithologic Reservoir with Low-porosity and Low-permeability: A Case of C8 Section at ZJ Oilfield
Benyu SU and Yasuhiro FUJIMITSU
The 7th International Symposium on Novel Carbon Resource Sciences, Seoul, South Korea, June, 2011.
270. Study on Satellite Images Based Spectral Emissivity, Land Surface Temperature and Land-cover in and around Kuju Volcano, Central Kyushu, Japan
Md. Bodruddoza MIA and Yasuhiro FUJIMITSU
The 7th International Symposium on Novel Carbon Resource Sciences, Seoul, South Korea, June, 2011.
271. Geothermal Reservoir Monitoring by the Hybrid Repeat Gravity Measurement in Takigami
Geothermal Field
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yoichi FUKUDA and Makoto TANIGUCHI
Japan Geoscience Union Meeting 2011, May, 2011.
272. Underground Fluid Flow Monitoring Using a A10 Absolute Gravimeter
Jun NISHIJIMA, Yoichi FUKUDA, Yayan SOFYAN, Yasuhiro FUJIMITSU and Makoto TANIGUCHI
Japan Geoscience Union Meeting 2011, May, 2011.
273. Relationship between the Coefficient of Geothermal Flux for the Heat Balance Technique
and micrometeorological data
Yasuhiro FUJIMITSU, Jun NISHIJIMA and Sachio EHARA
Japan Geoscience Union Meeting 2011, May, 2011.
274. Geothermal Reservoir Monitoring by the Repeat Gravity Measurement at the Takigami Geothermal Field, Japan -Application of Hybrid Gravity Measurement using Absolute and Relative Gravimeters-
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yoichi FUKUDA and Makoto TANIGUCHI
European Geosciences Union General Assembly 2011, Vienna, Austria, April, 2011.
275. Assessment of Low-Temperature Geothermal Resource of Hammam Faraun Hot Spring, Sinai Peninsula, Egypt
Mohamed Abdel ZAHER, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
The 36th Stanford Geothermal Workshop, Stanford, USA, January, 2011.
276. Geothermal Fluid Flow Monitoring by the Repeat Gravity Measurement at the Takigami Geothermal Field, Japan -Application of Hybrid Gravity Measurement by an Absolute Gravimeter (A10) and Relative Gravimeters (CG-3M and CG-5)-
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yoichi FUKUDA and Makoto TANIGUCHI
The 36th Stanford Geothermal Workshop, Stanford, USA, January, 2011.
277. A Study on the Methodology for Hydrocarbon Saturation Evaluation in Low-porosity and Low-permeability Shaly Sandstone Reservoir
Benyu SU and Yasuhiro FUJIMITSU
International Symposium on Earth Science and Technology 2010, Fukuoka, December, 2010.
278. Numerical Simulation of a Non-volcanic Hydrothermal System Caused by Formation of a High Permeability Fracture Zone
Daisuke OKA, Sachio EHARA and Yasuhiro FUJIMITSU
International Symposium on Earth Science and Technology 2010, Fukuoka, December, 2010.
279. Measurement and Control Techniques for Sustainable Exploitation and Utilization of Geothermal Energy -Modeling-
Yasuhiro FUJIMITSU
2010 Annual Meeting of Geothermal Research Society of Japan, November, 2010.
280. Geothermal Fluid Flow Monitoring by the Repeat Gravity Measurement at the Takigami Geothermal Field, Oita Prefecture, Japan -Application of Hybrid Gravity Measurement by an Absolute Gravimeter (A10) and Relative Gravimeters (CG-3M and CG-5)-
Daisuke OKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yoichi FUKUDA and Makoto TANIGUCHI
2010 Annual Meeting of Geothermal Research Society of Japan, November, 2010.
281. Geothermal Reservoir Monitoring Using Hybrid Gravity Measurement around Kamojang Geothermal Power Plant, Indonesia
Jun NISHIJIMA, Yayan SOFYAN, Yasuhiro FUJIMITSU, Yoichi FUKUDA and Makoto TANIGUCHI
2010 Annual Meeting of Geothermal Research Society of Japan, November, 2010.
282. Relationship between the Coefficient of Geothermal Flux and Micrometeorological Data Used in the Heat Balance Technique
Yasuhiro FUJIMITSU
2010 Annual Meeting of Geothermal Research Society of Japan, November, 2010.
283. A Method of Determining Matrix Parameters in Well-logging Interpretation
Benyu SU and Yasuhiro FUJIMITSU
Incorporating the Geoscience Society of New Zealand Conference and the New Zealand Geothermal Workshop 2010, Auckland, Newzealand, November, 2010.
284. A Study on Modeling of Borehole- Ground Direct Current with Finite Difference Method
Benyu SU and Yasuhiro FUJIMITSU
The 6th International Symposium on Novel Carbon Resource Sciences -Aiming toward Low-Carbon Society-, Kyushu University Chikushi Campus, Japan, November, 2010.
285. Sensitivity Studies of Evolution of a Non-Volcanic Hydrothermal System Caused by Formation of a High Permeability Fracture Zone
Daisuke OKA, Sachio EHARA and Yasuhiro FUJIMITSU
The 6th International Symposium on Novel Carbon Resource Sciences -Aiming toward Low-Carbon Society-, Kyushu University Chikushi Campus, Japan, November, 2010.
286. Power Production from Low-Temperature Geothermal Resource of Hammam Faraun Hot Spring, Sinai Peninsula, Egypt
Mohamed Abdel Zaher MAHMOUD, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
The 6th International Symposium on Novel Carbon Resource Sciences -Aiming toward Low-Carbon Society-, Kyushu University Chikushi Campus, Japan, November, 2010.
287. A Geothermal Reservoir Monitoring Using an Absolute Gravity Measurement Around Takigami Geothermal Power Plant, Central Kyushu, Japan
Jun NISHIJIMA, Yasuhiro FUJIMITSU, Yayan SOFYAN, Yoichi FUKUDA, Takashi HASEGAWA and Makoto TANIGUCHI
Renewable Energy 2010, July, 2010.
288. Numerical Simulation of a Non-volcanic Hydrothermal System Caused by Formation of a High Permeability Fracture Zone
Daisuke OKA, Sachio EHARA and Yasuhiro FUJIMITSU
Renewable Energy 2010, July, 2010.
289. Combined Repeat Gravity Measurement and Numerical Simulation for Geothermal Sustainability Monitoring -An Application to the Kamojang Geothermal Field-
Yayan SOFYAN, Yunus DAUD, Yustin KAMAH, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
Renewable Energy 2010, July, 2010.
290. Exploration of Non-volcanic Hydrothermal Systems in Fukuoka Prefecture, Japan, by Gravity Surveys
Yasuhiro FUJIMITSU and Jun NISHIJIMA
Renewable Energy 2010, July, 2010.
291. Numerical Simulation of a Non-volcanic Hydrothermal System Caused by Formation of a High Permeability Fracture Zone
Daisuke OKA, Sachio EHARA and Yasuhiro FUJIMITSU
Japan Geoscience Union Meeting 2010, May, 2010.
292. Underground Fluid Flow Monitoring Using a A10 Absolute and CG-3M Relative Gravimeter
Jun NISHIJIMA, Yasuhiro FUJIMITSU, Yayan SOFYAN, Yoichi FUKUDA and Makoto TANIGUCHI
Japan Geoscience Union Meeting 2010, May, 2010.
293. Relationship between the Coefficient of Geothermal Flux and Ground Surface Temperature Anomaly
Yasuhiro FUJIMITSU, Jun NISHIJIMA and Sachio EHARA
Japan Geoscience Union Meeting 2010, May, 2010.
294. Monitoring of the Hydrothermal System in Kamojang Geothermal Field, Indonesia
Yayan SOFYAN, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA, Makoto TANIGUCHI
Japan Geoscience Union Meeting 2010, May, 2010.
295. Post-Eruptive Microgravity Changes from 1999 to 2004 at Unzen Volcano, SW Japan: A Window into Hydrothermal Dynamics
Hakim SAIBI, Joachim GOTTSMANN, Sachio EHARA, Jun NISHIJIMA, Yasuhiro FUJIMITSU
Japan Geoscience Union Meeting 2010, May, 2010.
296. Post-eruptive Gravity Changes at Unzen Volcano (Japan): A Window into Hydrologic Dynamics
Hakim SAIBI, Joachim GOTTSMANN, Sachio EHARA, Jun NISHIJIMA, and Yasuhiro FUJIMITSU
European Geosciences Union General Assembly 2010, Vienna, Austria, May, 2010.
297. Numerical Simulation of a Non-volcanic Hydrothermal System Caused by Formation of a High Permeability Fracture Zone
Daisuke OKA, Sachio EHARA and Yasuhiro FUJIMITSU
European Geosciences Union General Assembly 2010, Vienna, Austria, May, 2010.
298. An Estimate of the Resources Potential of Ungaran Geothermal Prospect for Indonesia Power Generation
Agus SETYAWAN, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
World Geothermal Congress 2010, Bali, Indonesia, April, 2010.
299. Reservoir Monitoring Using Hybrid Micro-Gravity Measurements in the Takigami Geothermal Field, Central Kyushu, Japan
Jun NISHIJIMA, Hakim SAIBI, Yayan SOFYAN, Sachio SHIMOSE, Yasuhiro FUJIMITSU, Sachio EHARA, Yoichi FUKUDA, Takashi HASEGAWA and Makoto TANIGUCHI
World Geothermal Congress 2010, Bali, Indonesia, April, 2010.
300. Numerical Simulation for Development Process of a Non-Volcanic Hydrothermal System Caused by a Permeable Fracture Zone
Yasuhiro FUJIMITSU, Daisuke OKA and Sachio EHARA
World Geothermal Congress 2010, Bali, Indonesia, April, 2010.
301. Monitoring of Mass Balance Model during Production Capacity Increase at Kamojang Geothermal Field, Indonesia
Yayan SOFYAN, Yunus DAUD, Hakim SAIBI, Yustin KAMAH, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
The 35th Stanford Geothermal Workshop, Stanford, USA, February, 2010.
302. Sustainable Production Plan in the Geothermal Energy Development -A Case Study of Kamojang Geothermal Field, Indonesia-
Yayan SOFYAN, Yunus DAUD, Yustin KAMAH, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
The 4th International Symposium on Novel Carbon Resource Sciences: Environmental Science and Technology, Shanghai, China, December, 2009.
303. Noise Distribution Modeling and Environmental Risk Assessment of Geothermal Power Plants
Hossein YOUSEFI, Sachio EHARA and Yasuhiro FUJIMITSU
International Symposium on Earth Science and Technology 2009, Fukuoka, December, 2009.
304. Estimation of Intrusive Rocks around Matsukawa Geothermal Power Plant Based on Densed Gravity Survey
Shogo KAKINOKI, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Kei SATO and Tayuki KONDO
2009 Annual Meeting of Geothermal Research Society of Japan.
305. Thermal Structure by Vent Cooling Model: Application to Wakamiko Crater in Kagoshima Bay
Keiko FUJINO, Toshiro YAMANAKA, Yasuhiro FUJIMITSU and Sachio EHARA
2009 Annual Meeting of Geothermal Research Society of Japan.
306. Numerical Simulation of a Non-volcanic Hydrothermal System Caused by Formation of a High Permeability Fracture Zone
Daisuke OKA, Sachio EHARA and Yasuhiro FUJIMITSU
2009 Annual Meeting of Geothermal Research Society of Japan.
307. Repeat Gravity Measurement Using A10 Absolute Gravimeter around Takigami Geothermal Power Plant
Jun NISHIJIMA, Yasuhiro FUJIMITSU, Youichi FUKUDA, Takashi HASEGAWA and Masato TANIGUCHI
2009 Annual Meeting of Geothermal Research Society of Japan.
308. Gravity Survey in Oto Town, Fukuoka Prefecture
Yasuhiro FUJIMITSU, Jun NISHIJIMA, Yayan SOFYAN and Yuuki FUKUI
2009 Annual Meeting of Geothermal Research Society of Japan.
309. Influence of GCHP System Operation to the Thermal Subsurface Environment
Fuminori ABE, Hiroto TAKESHITA, Sachio EHARA and Yasuhiro FUJIMITSU
2009 Annual Meeting of Geothermal Research Society of Japan.
310. Exploration of Underground Structure in Oto Town, Fukuoka Prefecture, Japan, by Gravity Survey
Yasuhiro FUJIMITSU and Jun NISHIJIMA
New Zealand Geothermal Workshop 2009, November, 2009.
311. Repeat Gravity Measurement for Groundwater Monitoring -An Application to the Reservoir Monitoring in Geothermal Power Plant-
Yayan SOFYAN, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sachio EHARA, Takeshi HASEGAWA, Yoichi FUKUDA
The 3rd International Symposium Human Impacts on Urban Subsurface Environment, Taiwan, November, 2009.
312. Assessment of Geothermal Potential at Ungaran Volcano, Indonesia Deduced from Numerical Analysis
Agus SETYAWAN, Sachio EHARA, Yasuhiro FUJIMITSU and Hakim SAIBI
Thirty-Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February, 2009.
313. Numerical Modeling of the Three-layered Hydrothermal System in the Kuju Volcanic Region, Central Kyushu, Japan
Kohtaro ARARAGI, Sachio EHARA and Yasuhiro FUJIMITSU
The 2008 AGU Fall Meeting, December, 2008.
314. Numerical Model of Hydrothermal System at Ungaran Volcano, Central Java, Indonesia
Agus SETYAWAN, Sachio EHARA and Yasuhiro FUJIMITSU
International Symposium on Earth Science and Technology 2008, December, 2008.
315. Evolution of Thermal Processes Associated with the Activity of the Magma Chamber in the Kuju Volcanic Region, Central Kyushu, Japan
Kohtaro ARARAGI, Sachio EHARA and Yasuhiro FUJIMITSU
International Symposium on Earth Science and Technology 2008, December, 2008.
316. Development of a Non-volcanic Hydrothermal System Caused by a Permeable Fracture Zone
Yasuhiro FUJIMITSU, Daisuke OKA, Sachio EHARA and Akira ONO
30th New Zealand Geothermal Workshop 2008, November, 2008.
317. A Long-term Fluid Flow in the Geothermal Reservoir of Takigami Area Inferred from the Observation of the Gravity Changes
Sachio SHIMOSE, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
2008 Annual Meeting of Geothermal Research Society of Japan.
318. The Exhaust Heat and Cooling Effect on the Heat Balance of Fukuoka City
Kenta UCHIHASHI, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2008 Annual Meeting of Geothermal Research Society of Japan.
319. Numerical Modeling of the Formation of the Three-layered Subsurface Thermal Structure in the Kuju Volcanic Region, Central Kyushu, Japan
Kohtaro ARARAGI, Sachio EHARA and Yasuhiro FUJIMITSU
2008 Annual Meeting of Geothermal Research Society of Japan.
320. Underground Fluid Flow Monitoring Using Repeat Gravity Measurement -A Preliminary Measurement Using A10 Absolute Gravimeter-
Jun NISHIJIMA, Hakim SAIBI, Yasuhiro FUJIMITSU, Yoichi FUKUDA, Takashi HASEGAWA and Masato TANIGUCHI
2008 Annual Meeting of Geothermal Research Society of Japan.
321. Gravity Survey in the Matsukawa Geothermal Field, Northeast Japan
Tatsuya SUMITA, Masahiko MAKINO, Shiro WATANABE, Junichi ITOH, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Kei SATO, Takashi KUWANO
2008 Annual Meeting of Geothermal Research Society of Japan.
322. Measurement of Soil Carbon Dioxide Concentration in Kuju Volcano, Central Kyushu, Japan, and Comparison with results in Merapi, Merbabu and Ungaran Volcanoes, Central Java, Indonesia
Kohtaro ARARAGI, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA, Agus SETYAWAN, Udi HARMOKO, Rie YAMASHIRO, Ryuichi ITOI, Masaki SAITO
2008 Annual Meeting of Geothermal Research Society of Japan.
323. Numerical Modeling of Hydrothermal System of Kuju Volcano before and after the 1995 Eruption
Yasuhiro FUJIMITSU, Sachio EHARA, Chisuga IDE, Jun NISHIJIMA and Koichiro FUKUOKA
2008 Annual Meeting of Geothermal Research Society of Japan.
324. Evolution of a Non-volcanic Hydrothermal System Caused by Formation of a High Permeability Fracture Zone
Daisuke OKA, Sachio EHARA and Yasuhiro FUJIMITSU
2008 Annual Meeting of Geothermal Research Society of Japan.
325. Life Cycle Assessment of Air Conditioning System with Ground-Coupled Heat Pump at Islandcity, Fukuoka
Fuminori ABE, Hiroto TAKESHITA, Sachio EHARA, Koichiro FUKUOKA and Yasuhiro FUJIMITSU
2008 Annual Meeting of Geothermal Research Society of Japan.
326. Evaluation of Subsurface Thermal Environmental Change Caused by a Ground-coupled Heat Pump System
Yasuhiro FUJIMITSU, Koichiro FUKUOKA, Sachio EHARA, Hiroto TAKESHITA and Fuminori ABE
RENEWABLE ENERGY 2008, October, 2008.
327. Integrated Geophysical Surveys of Ungaran Volcano: Understanding the Hydrothermal System
Agus SETYAWAN, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA and Hakim SAIBI
The 2nd International Workshop and Conference on Earth Resource Technology: Stepping Towards Sustainable Mining, Metallurgical and Petroleum Technology Development, Chulalongkorn University, Bangkok, Thailand, April, 2008.
328. Compiling a Volanic Activity Database of Kuju Iwo-yama and Comprehensive Evaluation Based on the Database
Chisuga IDE, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Koichiro FUKUOKA
2007 Annual Meeting of Geothermal Research Society of Japan.
329. Geophysical, Geological and Geochemical Surveys of a Low Temperature Hydrothermal System in Inner Mongolia, China
Jun NISHIJIMA, Sachio EHARA, Yasuhiro FUJIMITSU and Koichiro FUKUOKA
2007 Annual Meeting of Geothermal Research Society of Japan.
330. Comprehensive Research on Akune Hot Springs, Kagoshima Prefecture
Yasuhiro FUJIMITSU, Sachio EHARA, Koichiro FUKUOKA, Jun NISHIJIMA, Keiko SASAKI, Toru MARUYAMA and Tetsuro NODA
2007 Annual Meeting of Geothermal Research Society of Japan.
331. Influence of the Artificial Exhaust Heat and the Surface Radiation on the Heat Balance of Fukuoka City
Kenta UCHIHASHI, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Koichiro FUKUOKA
2007 Annual Meeting of Geothermal Research Society of Japan.
332. Gravity Data Processing as a Tool of Detecting Faults at Fukuoka Area, Southwestern Japan
Hakim SAIBI, Jun NISHIJIMA, Tomohiro HIRANO, Yasuhiro FUJIMITSU and Sachio EHARA
2007 Annual Meeting of Geothermal Research Society of Japan.
333. Fluid Flow in the Geothermal Reservoir of Takigami Area Inferred by Observation of Gravity Changes
Sachio SHIMOSE, Jun NISHIJIMA, Yasuhiro FUJIMITSU
2007 Annual Meeting of Geothermal Research Society of Japan.
334. Geophysical Investigations of Ungaran Volcano, Central Java, Indonesia
Yasuhiro FUJIMITSU, Agus SETYAWAN, Koichiro FUKUOKA, Jun NISHIJIMA, Sachio EHARA and Hakim SAIBI
29th New Zealand Geothermal Workshop 2007.
335. Numerical Modeling based on Gravity and Hydro-geochemical Data, - A Case Study of Obama Geothermal Field, Southwestern Japan -
Hakim SAIBI, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA.
336. Numerical Study of Pressurization Process in a Magma Reservoir with Crystallization and Volatile Exsolution: Comparison with the Periodicity of Eruptive Activities
Mitsuo MATSUMOTO, Sachio EHARA and Yasuhiro FUJIMITSU
International Workshop on Earth Resources Technology.
337. Variations in Geothermometry and Chemical Composition of Hot Spring Fluids in the Obama Geothermal Field, Southwestern Japan
Hakim SAIBI, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
4th International Workshop on Earth Science and Technology.
338. Preliminary Study Hydrothermal System of Ungaran Volcano, Indonesia, Inferred from Geophysical Surveys
Agus SETYAWAN, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA and WAHYUDI
4th International Workshop on Earth Science and Technology.
339. Development of Integrated Geophysical Airborne Survey System -Infrared Imagery Observation Tests over Aso and Bandai Volcanoes-
Yasuhiro FUJIMITSU, Hisatoshi ITO and Hiroshi OHNISHI
2006 Annual Meeting of Geothermal Research Society of Japan.
340. Subsurface Structure Imaging of Ungaran Volcano, Indonesia Based on Geophysical Surveys
Agus SETYAWAN, Jun NISHIJIMA, Koichiro FUKUOKA, Yasuhiro FUJIMITSU and Sachio EHARA
2006 Annual Meeting of Geothermal Research Society of Japan.
341. Relation between Earthquake and Groundwater Level in Fukuoka
Masahiro YAMAMOTO, Sachio EHARA, Koichiro FUKUOKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA
2006 Annual Meeting of Geothermal Research Society of Japan.
342. Compiling a Volcanic Activity Database of Kuju Iwo-yama and Comprehensive Evaluation Based on the Database
Chisuga IDE, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA
2006 Annual Meeting of Geothermal Research Society of Japan.
343. High-accuracy Estimation of Heat Discharge Rate by the Heat Balance Method
Toshiharu KIDO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA
2006 Annual Meeting of Geothermal Research Society of Japan.
344. Hydrothermal System of Akune Hot Spring, Kagoshima Prefecture and Its Future Development Plan
Koichiro FUKUOKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA, Keiko SASAKI, Tohru MARUYAMA, Teturo NODA, Hisashi SHIMA
2006 Annual Meeting of Geothermal Research Society of Japan.
345. Repeat Gravity Measurement at Takigami Geothermal Field, Oita Prefecture
Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sachio EHARA
2006 Annual Meeting of Geothermal Research Society of Japan.
346. Densely-arranged Gravity Survey in Fukuoka City, Japan -Relation between the Subsurface Structure and the Low Temperature Hydrothermal System of Fukuoka-
Yasuhiro FUJIMITSU, Jun NISHIJIMA and Tomohiro HIRANO
28th New Zealand Geothermal Workshop 2006, November, 2006.
347. Geothermal Reservoir Monitoring Using Repeat Gravity Measurement at Takigami Geothermal Field, Central Kyushu, Japan
Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
Renewable Energy 2006.
348. High-Accuracy Estimation of Heat Discharge Rates from Unzen Geothermal Area, Japan, Using Infrared Imagery by a Helicopter-Borne Thermo-Camera
Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA and Sachio EHARA
Renewable Energy 2006.
349. Changes in Groundwater Level Prior to an Earthquake in the Off-shore Area West of Fukuoka Prefecture, Japan, on 20 March 2005 and Several Subsequent Large Aftershocks, Offering the Possibility of Deterministic Earthquake Prediction
Sachio EHARA, Koichiro FUKUOKA , Yasuhiro FUJIMITSU and Jun NISHIJIMA
3rd International Symposium and Exhibition on Earth Resources and Geological Engineering Education.
350. Change in the Thermal Process in a Volcanic Geothermal Reservoir Beneath an Active Fumarolic Field After the 1995 Phreatic Eruption of Kuju Volcano, Japan
Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA and Masayuki OZAWA
2005 American Geophysical Union Fall Meeting.
351. The Hydrothermal Study of Merapi Volcano, Central Java, Indonesia
Udi HARMOKO, Sachio EHARA and Yasuhiro FUJIMITSU
3rd International Workshop on Earth Science and Technology.
352. Thermal Process in the Body of Unzen Volcano and the Hydrothermal System in the Shimabara Peninsula
Yasuhiro FUJIMITSU, Ryosuke OKI and Sachio EHARA
2005 Annual Meeting of Geothermal Research Society of Japan.
353. 2005 Annual Meeting of Geothermal Research Society of Japan.
354. 2005 Annual Meeting of Geothermal Research Society of Japan.
355. Recent Ground-source Heat Pump Technology (A Case Study of Residential House at Island-City of Fukuoka City)
Sachio EHARA, Koji MORITA, Koichiro FUKUOKA, Takashi KURODA, Kotaro SAKEMI, Shin KAMIOKA, Yasuhiro FUJIMITSU, Jun NISHIJIMA
2005 Annual Meeting of Geothermal Research Society of Japan.
356. Geothermal fluid flow model in Shimabara Peninsula
Yasuhiro FUJIMITSU, Sachio EHARA, Ryosuke OKI
2005 Annual Meeting of Geothermal Research Society of Japan.
357. Algeria Country Geothermal Report
Hakim SAIBI, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Koichiro FUKUOKA
2005 Annual Meeting of Geothermal Research Society of Japan.
358. Continuous Temperature Observation of Discharging Fluid at Sewatashi-jigoku Geyser in Oita Prefecture, Japan
Yuichi NARAZAKI, Koichiro FUKUOKA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sachio EHARA
2005 Annual Meeting of Geothermal Research Society of Japan.
359. Geophysical Reconnaissance Surveys of Ungaran Geothermal Field, Central Java, Indonesia (2)
Koichiro FUKUOKA, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Udi HARMOKO
2005 Annual Meeting of Geothermal Research Society of Japan.
360. Thermal Evolution Study of Merapi Volcano Correlating to the Present Seismic Activity
Udi HARMOKO, Sachio EHARA, Yasuhiro FUJIMITSU
2005 Annual Meeting of Geothermal Research Society of Japan.
361. Numerical Simulation of Hydrothermal System in Obama Area, Nagasaki Prefecture
Tsukasa ENDO, Koichiro FUKUOKA, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Sachio EHARA
2005 Annual Meeting of Geothermal Research Society of Japan.
362. Bouguer Anomalies in Fukuoka and Kurume Areas by Gravity Surveys with Densely Arranged Stations
Yasuhiro FUJIMITSU, Jun NISHIJIMA, Tomohiro HIRANO, Sachio EHARA
2005 Annual Meeting of Geothermal Research Society of Japan.
363. High-accuracy Estimation of Heat Discharge Rate on Unzen Geothermal Area by Heat Balance Technique (2)
Toshiharu KIDO, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Sachio EHARA
2005 Annual Meeting of Geothermal Research Society of Japan.
364. Numerical Investigation on Cooling Process of Magma Chamber beneath Geothermal System
Mitsuo MATSUMOTO, Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA
2005 Annual Meeting of Geothermal Research Society of Japan.
365. Estimation of Heat Discharge Rates from Unzen Geothermal Area, Japan, by Using the Heat Balance Technique
Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA and Sachio EHARA
27th New Zealand Geothermal Workshop 2005, October, 2005.
366. Development of a New Heating and Cooling System with the Downhole Coaxial Heat Exchanger (DCHE) and Ground-Source Heat Pumps
Sachio EHARA, Koji MORITA, Koichro FUKUOKA, Takashi KURODA, Kotaro SAKEMI, Yasuhiro FUJIMITSU and Jun NISHIJIMA
SB05 Tokyo.
367. Reconnaissance Geophysical Surveys at Ungaran Volcano, Central Java, Indonesia
Koichiro FUKUOKA, Sachio Ehara, Yasuhiro FUJIMITSU and Jun Nishijima
AUN-SEED-Net Fieldwise-seminar and International Symposium.
368. Development of a New Heating and Cooling System for the House with the Downhole Coaxial heat Exchanger (DCHE) and Ground-Source Heat Pumps
Sachio EHARA, Koji MORITA, Koichiro FUKUOKA, Takashi KURODA, Kotaro SAKEMI, Yasuhiro FUJIMITSU and Jun NISHIJIMA.
369. High-accuracy Estimation of Heat Discharge Rate on Unzen Geothermal Area by Heat Balance Technique
Yasuhiro FUJIMITSU, Toshiharu KIDO, Jun NISHIJIMA and Tomoya AKIRA
2004 Annual Meeting of Geothermal Research Society of Japan.
370. Underground Structure beneath the Obama Hot Spring Area (Nagasaki) Deduced from Gravity and Gamma Rays Data
Tsukasa ENDO, Jun NISHIJIMA, Yasuhiro FUJIMITSU, Koichiro FUKUOKA and Sachio EHARA
2004 Annual Meeting of Geothermal Research Society of Japan.
371. Design of Air Conditioning System with a Ground-Coupled Heat Pump for a Gravity Meter Room
Takashi KURODA, Koji MORITA, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
2004 Annual Meeting of Geothermal Research Society of Japan.
372. Monitoring and Simulation of the Cooling Process of Kuju Volcano, Japan
Koichiro FUKUOKA, Masayuki OZAWA, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2004 Annual Meeting of Geothermal Research Society of Japan.
373. Simulation of Subsurface Temperature around the Conduit Using USDP-4 Temperature logging Data at Unzen Volcano
Ryosuke OHKI, Yasuhiro FUJIMITSU, Jun NISHIJIMA, Koichiro FUKUOKA and Sachio EHARA
2004 Annual Meeting of Geothermal Research Society of Japan.
374. Reconnaissance Geophysical Surveys of Ungaran Geothermal Field, Central Java, Indonesia
Sachio EHARA, Yasuhiro FUJIMITSU, Jun NISHIJIMA and Koichiro FUKUOKA
2004 Annual Meeting of Geothermal Research Society of Japan.
375. Geophysical Surveys at the Southern Part of Obama Hot Spring Area
Jun NISHIJIMA, Sachio EHARA, Yasuhiro FUJIMITSU and Koichiro FUKUOKA
2004 Annual Meeting of Geothermal Research Society of Japan.
376. Changes in Geochemistry of Hot Waters from Obama Geothermal Field between 1984 and 2001
Hakim SAIBI, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2004 Annual Meeting of Geothermal Research Society of Japan.
377. Aquifer Chemistry of Thermal Waters in Obama Geothermal Field, Japan -Between 1984 and 2001
Hakim SAIBI, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
26th New Zealand Geothermal Workshop 2004.
378. Design of Air Conditioning System with a Ground-coupled Heat Pump for a Gravity Meter Room
Takashi KURODA, Koji MORITA, Jun NISHIJIMA, Yasuhiro FUJIMITSU and Sachio EHARA
26th New Zealand Geothermal Workshop 2004.
379. Magnitude Magnetic Transforms at Low Magnetic Latitudes
Daniela GEROVSKA, Petar STAVREV and Marcos J. ARAUZO-BRAVO
2nd International Workshop on Earth Science and Technology.
380. Temperature Estimation around the Conduit of the 1990-95 Eruption at Unzen Volcano by Numerical Simulation
Yasuhiro FUJIMITSU, Ryosuke OHKI and Sachio EHARA
26th New Zealand Geothermal Workshop 2004.
381. Geochemistry and Geothermometry of Hot Waters from the Obama Geothermal Field, between 1984 and 2001
Hakim SAIBI, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2nd International Workshop on Earth Science and Technology.
382. Change in Hypocenters after the July 1998 Eruption at Merapi Volcano, Central Java, Indonesia
Udi HARMOKO, Sachio EHARA, Yasuhiro FUJIMITSU and Jun NISHIJIMA
2nd International Workshop on Earth Science and Technology.
383. Reservoir Monitoring by Repeat Gravity Measurements at the Unzen Geothermal Area (1999-2004)
Hakim SAIBI, Jun NISHIJIMA, Sachio EHARA and Yasuhiro FUJIMITSU
Summer School at Unzen 2004.
384. Unzen-Obama Geothermal Project (3)Gamma-ray Intensity Investigation in Obama Hot Spring Area
Y. Fujimitsu, Y. Oba and K. Yamada
2003 Annual Meeting of Geothermal Research Society of Japan.
385. Resistivity Prospecting at Unzen volcano
K. Fukuoka, Y. Fujimitsu and K. Yamada
2003 Annual Meeting of Geothermal Research Society of Japan.
386. Low Temperature Hydrothermal System in the Southern Part of Fukuoka City
Y. Oba, J. Nishijima, Y. Fujimitsu and S. Ehara
2003 Annual Meeting of Geothermal Research Society of Japan.
387. Numerical Modelling of the Hydrothermal System in Unzen Volcano, Japan
Y. Fujimitsu and R. Kanou
25th New Zealand Geothermal Workshop 2003.
388. Cooling of the Shallow Subsurface beneath Kuju Volcano, Central Kyushu, Japan Deduced from Geomagnetic Changes
M. Ozawa, K. Fukuoka, J. Nishijima, Y. Fujimitsu and S. Ehara
25th New Zealand Geothermal Workshop 2003.
389. Soil Air Gas and Gamma-ray Surveys at Unzen Volcano, Japan
R. Unoki, R. Itoi, K. Fukuoka, Y. Fujimitsu and S. Ehara
25th New Zealand Geothermal Workshop 2003.
390. Repeat Gravity Measurement at Unzen Volcano
Y. Fujimitsu, J. Nishijima and S. Ehara
Volcanological Society of Japan 2003 Fall Meeting.
391. Recent Changes in Volcanic Gas Emitted from No.1 Crater of Nakadake, Aso Volcano, Japan -Remote Observation by Fourier Transform Infrared Spectroscopy (FT-IR)-
S. Ehara, T. Hirao, Y. Fujimitsu and J. Nishijima
Volcanological Society of Japan 2003 Fall Meeting.
392. Cooling of the Shallower Part beneath Kuju-Iwoyama Deduced from Geomagnetic Changes
M. Ozawa, K. Fukuoka, J. Nishijima, Y. Fujimitsu and S. Ehara
Volcanological Society of Japan 2003 Fall Meeting.
393. Low Temperature Hydrothermal System in the Southern Area of Fukuoka City, Japan
Y. Fujimitsu, J. Nishijima, Y. Oba and S. Ehara
38th International Conference of Societe Internationale des Techniques Hydrothermales.
394. Hydrothermal System in the Body of Unzen Volcano After the 1990-95 Eruption
Y. Fujimitsu, S. Ehara, J. Nishijima, R. Kanou, T. Hirao and K. Kawagashira
International Union of Geodesy and Geophysics 2003.
395. Quick cooling of Kuju Volcano, Central Kyushu, Japan after the 1995 Phreatic eruption from Multi-parameter Measurements
S. Ehara, Y. Fujimitsu, J. Nishijima, K. Fukuoka and M. Ozawa
International Union of Geodesy and Geophysics 2003.
396. Gravity Changes and Ground Deformation after the 1995 Eruption at Kuju Volcano, Central Kyushu, Japan
J. Nishijima, Y. Fujimitsu and S. Ehara
International Union of Geodesy and Geophysics 2003.
397. Gravity Changes and Ground Deformation after the 1995 Eruption at Kuju Volcano, Central Kyushu, Japan
J. Nishijima, N. Sakamura, Y. Fujimitsu, S. Ehara, E. Kouno and M. Yamauchi
International Union of Geodesy and Geophysics 2003.
398. Evolution Possibility of Hydrothermal System in Unzen Volcano
Y. Fujimitsu, S. Ehara and J. Nishijima
2003 Japan Earth and Planetary Science Joint Meeting.
399. Monitoring of Volcanic Activity by Geodetic Survey at Kuju Volcano
J. Nishijima, Y. Fujimitsu and S. Ehara
2002 Annual Meeting of Geothermal Research Society of Japan.
400. Three-dimensional Numerical Simulation of Developing Hydrothermal System by Magmatic Intrusion at Unzen Volcano, Central Kyushu, Japan
R. Kanou, J. Nishijima, K. Fukuoka, Y. Fujimitsu and S. Ehara
2002 Annual Meeting of Geothermal Research Society of Japan.
401. Reservoir Monitoring by GPS Survey at Hatchobaru Geothermal Field (Part 2)
N. Sakamura, J. Nishijima, Y. Fujimitsu, S. Ehara, E. Kouno and S. Kusaba
2002 Annual Meeting of Geothermal Research Society of Japan.
402. Geothermal Processes at the Central Part of Kuju Volcano based on Seismic and Thermal Observations
H. Hamada, S. Ehara, J. Nishijima and Y. Fujimitsu
2002 Annual Meeting of Geothermal Research Society of Japan.
403. Remote Observation of Volcanic Gases by FT-IR at Kuju Volcano
T. Hirao, Y. Fujimitsu, J. Nishijima and S. Ehara
2002 Annual Meeting of Geothermal Research Society of Japan.
404. Underground Structure of Low Temperature Hydrothermal System -A Case Study of the Ijiri area, Southern Part of Fukuoka City-
Y. Oba, Y. Fujimitsu, J. Nishijima and S. Ehara
2002 Annual Meeting of Geothermal Research Society of Japan.
405. Cooling of the Heat Source beneath Kuju-Iwoyama Deduced from Geomagnetic Changes
M. Ozawa, K. Fukuoka, J. Nishijima, Y. Fujimitsu and S. Ehara
2002 Annual Meeting of Geothermal Research Society of Japan.
406. Estimating a Location of the Conduit of Unzen Volcano (Heiseisinzan) on the basis of Geochemical Measurement
R. Unoki, R. Itoi, K. Fukuoka, Y. Fujimitsu and S. Ehara
2002 Annual Meeting of Geothermal Research Society of Japan.
407. Study on Hydrothermal System Development, Unzen Volcano, Japan: A Topic in Phase I of the Unzen Scientific Drilling Project
Y. Fujimitsu, S. Ehara, J. Nishijima, R. Kanou and T. Hirao
24th New Zealand Geothermal Workshop 2002.
408. Quick Cooling of Kuju Volcano, Central Kyushu, Japan after the 1995 Phreatic Eruption
S. Ehara, Y. Fujimitsu, J. Nishijima, K. Fukuoka and M. Ozawa
24th New Zealand Geothermal Workshop 2002.
409. Repeated Microgravity Obserbations, GPS Survey and Continuous Tilt Measurements in Kuju Volcano, Central Kyushu, Japan
J. Nishijima, Y. Fujimitsu and S. Ehara
24th New Zealand Geothermal Workshop 2002.
410. Subsurface Structure of Kego Fault, Fukuoka, Inferred from the Gravity Exploration (Part 2)
J. Nishijima, Y. Fujimitsu, S. Ehara, K. Fukuoka, D. Gerovska, T. Mogi, M. Kawaguchi and T. Kato
The 107th SEGJ Conference.
411. Multi-parameter Monitoring of a Volcanic Geothermal Reservoir beneath Kuju Volcano by Laboratory of Geothermics, Kyushu University
S. Ehara, Y. Fujimitsu and J. Nishijima
Special Workshop on Earth Science and Technology.
412. Quick Cooling of a Volcano after a Phreatic Eruption -A Case Study of 1995 Phreatic Eruption of Kuju Volcano, Central Kyushu, Japan-
S. Ehara, Y. Fujimitsu and J. Nishijima
2002 Japan Earth and Planetary Science Joint Meeting.
413. Repeated Microgravity, GPS Survey and Continuous Tilt Measurement in Kuju Volcano
J. Nishijima, S. Ehara and Y. Fujimitsu
2002 Japan Earth and Planetary Science Joint Meeting.
414. Investigations and Modeling of Hydrothermal System of Unzen Volcano, Japan -A Study in the Unzen Scientific Drilling Project-
Y. Fujimitsu, R. Kanou, J. Nishijima, S. Ehara and T. Hirao
International Workshop on Intelligent Mining Systems.
415. Monitoring of a Volcanic Geothermal Reservoir through Multi-parameter Measurements -A Case Study of the Central Part of Kuju Volcano, Japan-
S. Ehara, Y. Fujimitsu and J. Nishijima
The 27th Workshop on Geothermal Reservoir Engineering.
416. Underground Structure of Low Temperature Geothermal System -Southern Area of Fukuoka City-
Y. Fujimitsu, J. Nishijima, Y. Oba, K. Fukuoka, D. Gerovska and S. Ehara
2001 Annual Meeting of Geothermal Research Society of Japan.
417. Thermal Observations of Unzen Volcano and Estimation of Its Conduit Cooling Condition
Y. Fujimitsu, S. Ehara and J. Nishijima
2001 Japan Earth and Planetary Science Joint Meeting.