Kyushu University Academic Staff Educational and Research Activities Database
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Nobuhiro Matsunaga Last modified date:2018.06.11



Graduate School
Undergraduate School
Administration Post
Director of the University Libraries


E-Mail
Phone
092-583-7550
Fax
092-592-8447
Academic Degree
Doctor of Engineering
Country of degree conferring institution (Overseas)
No
Field of Specialization
Environmental Fluid Science
Total Priod of education and research career in the foreign country
00years00months
Outline Activities
・Education and Research on Environmental Hydraulics
・Education and Research on Urban Atmospheric Environments
・Education and Research on Coastal Environments
・Education and Research on Coastal Engineering
Research
Research Interests
  • Development of water purification technology by using nanoscale zero-valent iron
    keyword : water purification, nanoscale zero-valent iron
    2016.04~2019.03.
  • Countermeasure for beach erosion of Karatsu Bay in Saga Prefecture
    keyword : Beach erosion
    2013.04~2015.03.
  • Characteristics of flow in Isahaya Bay
    keyword : flow, semi-closed inner bay
    2013.04~2019.03.
  • Biochemical investigations of sediment characteristics in Isahaya Bay
    keyword : Sediment environments, oxygen consumption, oxygen deoression
    2007.10~2019.03.
  • Water quality and sediment environments in enclosed sea area
    keyword : Enclosed sea area, water quality, sediment characteristics
    1998.04~2019.03.
  • Research on blown sand in Shingu Town
    keyword : blown sand, coastal environments
    2011.05~2015.03.
  • Water quality purification by a porous concrete block including Bccillus Subtilis Natto Group
    keyword : Bccillus Subtilis Natto Group, water quality purification,porous concrete block
    2004.04~2014.03.
  • The Torrential Rain in Urban Areas
    keyword : Concentrated heavy rain,Thermal environments
    2007.10~2019.03.
  • The Characteristics of Heat Island in Fukuoka Metropolitan Area
    keyword : Thermal environments, Heat island
    2007.10~2019.03.
  • Behaviors of local wind in urban area and thermal environments of atmosphere
    keyword : Environments of urban atmosphere, heat island
    1998.04~2019.03.
Academic Activities
Papers
1. Nobuhiro Matsunaga, Yuji Sugihara, Yukiko Hisada, Sho Imagama, Numerical experiments on spatially averaged precipitation in heavy rainfall event using the WRF model, Journal of Disaster Research, 10, 3, 436-447, 2016.05.
2. Nobuhiro Matsunaga, Yukiko Hisada, Yuji Sugihara, Meteorological characteristics of local heavy rainfall in the Fukuoka Plain, Journal of Disaster Research, 10, 3, 429-435, 2015.05.
3. Nobuhiro Matsunaga, Ami Zaizen, LI HONGYUAN, Yuji Sugihara, CHARACTERISTICS OF HYPOXIC WATER MASS IN ISAHAYA BAY

, Japan Sciety of Civil Engineering, 58, I_1207-I_1212, 2014.03, In Isahaya Bay, the secular variation of hypoxic water mass and the correlation of concentration of dissolved oxygen (DO) near the seabed were investigated using the data obtained by the Kyushu Regional Agricultural Administration Office. The factors controlling the DO concentration and the characteristics of the spatial variation were also investigated by means of multiple regression analysis and principal component analysis, respectively. The rate at which Isahaya Bay was covered with the hypoxic water mass (DO ≤ 4 mg/l) was largest in 2006. The hypoxic water mass occurred most frequently near the center of the bay, and the probability decreases toward the inner area and the Shimabara Peninsula. The multiple regression analysis indicated that the density stratification decreases the DO concentration near the seabed, and the Chl.a concentration increases the DO concentration. The three main modes in the spatial variation of DO in Isahaya Bay are shown using the principal component analysis..
4. 李洪源,松永信博, 諫早湾の底泥環境特性, 土木学会論文集, 66, 4, 321-334, 2010.10, 九州農政局によって得られた1989年から2008年までの20年間のデータを用いて,諫早湾内の底質環境の経年変化を調べた結果,潮受け堤防建設後,諫早湾の底質は全体的に細粒化し,湾奥部と湾央部では硫化物が増加していることが示された. 2008年夏季において諫早湾の22地点から未攪乱底泥コアを採取し,諫早湾内の底質環境の空間分布特性を調べた.その結果,諫早湾全域において有機汚濁が認められ,特に,潮受け堤防南側の背後の底泥環境がかなり悪化していることが示された.2004年夏季に観測された有明海奥部の底泥環境と比較した結果,2008年夏季における諫早湾の底泥環境は当時の有明海奥部より嫌気状態にあり,硫酸還元の進行が確認された..
5. Hongyuan LI and Nobuhiro MATSUNAGA, Secular and Spatial Variations on Sediment Environments behind Isahaya Reclamation Dike, 水工学論文集, 54, 1627-1632, 2010.02.
6. Ken-ichi Uzaki, Nobuhiro MATSUNAGA, Yasuhiro NISHII and Yoshito IKEHAT, Cause and countermeasure of long-period oscillations of moored ships and the quantification of surge and heave amplitudes, Ocean Engineering, 37, 155-163, 2010.02.
7. Ken-ichi UZAKI, Yoshito IKEHATA and Nobuhiro MATSUNAGA, Performance of the wave energy dissipation of a floating breakwater with truss structures and the quantification of transmission coefficients, Journal of Coastal Research, 26, 5, 2010.01.
8. H. Li, N. Matsunaga, T. Takino, Investigation on biochemical environments of seabed in Isahaya Bay, Annual Journal of Hydraulic Engineering, JSCE, Vol. 53, 1501-1506, 2009.02.
9. H. Li, Y. Yamada, N. Matsunaga , Sediment characteristics and oxygen consumpution velocity of tidal flats in Ariake Sea, Annual Journal of Hydraulic Engineering, JSCE, Vol. 53, pp. 1495-1500, 2009.02.
10. Y. Hisada, N. Matsunaga, Sea breeze effects on heat island structure in Fukuoka facing the sea of Japan, ADVANCES IN HYDRO-SCIENCE AND ENGINEERING, Vol. 8, pp. 491-495, 2008.10.
11. Y. Hisada, N. Matsunaga, Y. Oda, A simulation of sea breeze in Fukuoka facing the Sea of Japan, Proc. of the Int. Conf. on Hydrological Changes and Management from Headwaters to the Ocean-hydrochange 2008, 2008.10.
12. H. Li, N. Matsunaga, Y. Hisada and T. Tokunaga, Oxygen consumption processes due to resuspension of sediment in Ariake Sea, I. A. H. R. 16th A. P. D., 2008.09.
13. T. Tokunaga, H. Li, Y. Yamada and N. Matsunaga, Oxygen consumption through the bed surface in Ariake Sea, I. A. H. R. 16th Cong. A. P. D., 2008.09.
14. Y. Hisada, Y. Oda, N. Matsunaga, Observation of the heat island structure in Fukuoka facing the sea of Japan, Proc. 18th Int. Cong. of Biometeorology, 2008.09.
15. T. Tokunaga, N. Matsunaga, A. Takahashi, Characteristics of NH4+ adsorption by tidal flat sediments in the deep part of Ariake Sea, Proceedings of 5th International Symposium on Environmental Hydraulics, 2007.04.
16. T. Tokunaga, M. Isono, N. Matsunaga, Muddy seabed environment and oxygen consumption in the tidal flat along the Kumamoto coast of the Ariake Sea, Proceedings of the 16th International Offshore and Polar Engineering Conference, 2007.04.
Presentations
1. Nobuhiro Matsunaga, Ami Zaizen, LI HONGYUAN, Yuji Sugihara, CHARACTERISTICS OF HYPOXIC WATER MASS IN ISAHAYA BAY, 日本土木学会, 2014.03, In Isahaya Bay, the secular variation of hypoxic water mass and the correlation of concentration of dissolved oxygen (DO) near the seabed were investigated using the data obtained by the Kyushu Regional Agricultural Administration Office. The factors controlling the DO concentration and the characteristics of the spatial variation were also investigated by means of multiple regression analysis and principal component analysis, respectively. The rate at which Isahaya Bay was covered with the hypoxic water mass (DO ≤ 4 mg/l) was largest in 2006. The hypoxic water mass occurred most frequently near the center of the bay, and the probability decreases toward the inner area and the Shimabara Peninsula. The multiple regression analysis indicated that the density stratification decreases the DO concentration near the seabed, and the Chl.a concentration increases the DO concentration. The three main modes in the spatial variation of DO in Isahaya Bay are shown using the principal component analysis..
Educational
Educational Activities
1.Education for Graduate Students of Dept. of Earth System Science and Technology of Interdisciplinary Graduate School of Engineering and Sciences
2.Education for Undergraduate Students of Dept. of Energy Science and Engineering of Faculty of Engineering
3.Education for Undergraduate Students of Faculty of Art and Science