Subvisual cirrus cloud observations using a 1064-nm lidar, a 95 GHz cloud radar, and radiosondes in the warm pool region Reviewed International journal

S. Iwasaki, Y. Tsushima, R. Shirooka, R. Katsumata, K. Yoneyama, I. Matsui, A. Shimizu, N. Sugimoto, A. Kamei, H. Kuroiwa, H. Kumagai, Okamoto Hajime

Geophys. Res. Lett.   31 ( 9 )   2004.5

An algorithm for retrieval of cloud microphysics using 95-GHz cloud radar and lidar. Reviewed International journal

Okamoto Hajime

J. Geophys. Res.   2003.10

Information content of the 95-GHz cloud radar signals: Theoretical assessment of effects of nonsphericity and error evaluation of the discrete dipole approximation Reviewed International journal

Okamoto, H

J. Geophys. Res.   107 ( D22 )   2002.11

Analysis of the enhancement of backscattering by nonspherical particles with flat surfaces Reviewed International journal

Iwasaki, S., and H. Okamoto

Appl. Opt.,   2001.10

Development of A 95-GHz airborne cloud profiling radar (SPIDER) -- Technical aspects -- Reviewed

Horie, H., T. Iguchi, H. Hanado, H. Kuroiwa, H. Okamoto and H. Kumagai

IEICE Trans. Commun,   2000.10

Application of lidar depolarization measurement in the atmospheric boundary layer: Effects of dust and sea-salt particles Reviewed International journal

Murayama, T; Okamoto, H; Kaneyasu, N; Kamataki, H; Miura, K

J. Geophys. Res.   104 ( D24 )   1999.12

Comments on error analysis of backscatter from discrete dipole approximation for different ice particle shapes Reviewed International journal

Lemke, H., H. Okamoto, and M. Quante

Atmos. Res.   1998.10

Light scattering by irregular interplanetary dust particles Reviewed International journal

Okamoto, H; Xu, YL

Earth, Planets and Space   50 ( 6-7 )   1998.1

Remote sensing of cosmic dust : from planetary science to astronomy Reviewed

Okamoto, H., S. Matsuura and Y. Kitamura

1997.10

Modeling of backscattering by non-spherical ice particles for the interpretation of cloud radar signals at 94GHz. Reviewed International journal

Okamoto, H., A.Macke, M.Quante, E.Raschke

Contr. Atmos. Phys.   1995.10

Light scattering by clusters : the a1-term method Reviewed International journal

Okamoto, H.

Optical Review   1995.10

Preface to the special issue "EarthCARE Level 2 algorithms and data products": Editorial in memory of Tobias Wehr

Hogan, RJ; Illingworth, AJ; Kollias, P; Okamoto, H; Wandinger, U

ATMOSPHERIC MEASUREMENT TECHNIQUES   17 ( 10 )   3081 - 3083   2024.5   （ ISSN:1867-1381 eISSN:1867-8548 ）

Future Space-Based Coherent Doppler Wind Lidar for Global Wind Profile Observation

Shoekn Ishii, Kozo Okamoto, Hajime Okamoto, Toshiyoshi Kimura, Takuji Kubota, Shunsuke Imamura, Daisuke Sakaizawa, Koichi Fujihira, Ayako Matsumoto, Izumi Okabe, Tsuyoshi T. Sekiyama, Tomoaki Nishizawa, Tetsuya Takemi, Yoshiaki Miyamoto, Atsushi Sato, Riko Oki, Masaki Satoh, Toshiki Iwasaki

Springer Aerospace Technology   Part F2592   37 - 46   2024   （ ISSN:1869-1730 ISBN:978-3-031-53620-5 eISSN:1869-1749 ）

Assessing 94-GHz Radar Estimates in Polar Regions through the K2W Methodology

Bracci A., Sato K., Baldini L., Okamoto H.

2024 4th URSI Atlantic Radio Science Meeting, AT-RASC 2024   2024   （ ISBN:9789463968102 ）

Assessing 94-GHz Radar Estimates in Polar Regions through the K2W Methodology

Bracci, A; Sato, K; Baldini, L; Okamoto, H

2024 4TH URSI ATLANTIC RADIO SCIENCE MEETING, AT-RASC 2024   2024   （ ISBN:979-8-3503-6025-7 ）

Light scattering matrix for "bullet-rosette" aggregates of atmospheric ice particles within the geometrical optics approximation Reviewed International journal

Dmitriy N. Timofeev, Alexander V. Konoshonkin, Natalia V. Kustova, Victor A. Shishko, Hajime Okamoto

Proc. SPIE   12780   2023.10   （ ISSN:0277786X ISBN:9781510668096 ）

Global Analysis of Height-Resolved Ice Particle Categories From Spaceborne Lidar

Sato, K; Okamoto, H

GEOPHYSICAL RESEARCH LETTERS   50 ( 17 )   2023.9   （ ISSN:0094-8276 eISSN:1944-8007 ）

Global Analysis of Height-Resolved Ice Particle Categories From Spaceborne Lidar Reviewed International journal

Kaori Sato, Hajime Okamoto

Geophysical Research Letters   50 ( e2023GL105522 )   1 - 10   2023.9

Development of a methodology for evaluating spaceborne W-band Doppler radar by combined use of Micro Rain Radar and a disdrometer in Antarctica Reviewed

Alessandro Bracci, Kaori Sato, Luca Baldini, Federico Porcù, Hajime Okamoto

Remote Sensing of Environment   294   2023.8   （ ISSN:0034-4257 eISSN:1879-0704 ）

Development of a methodology for evaluating spaceborne W-band Doppler radar by combined use of Micro Rain Radar and a disdrometer in Antarctica Reviewed International journal

Remote Sensing of Environment   294   2023.5

Erratum to: Backscattering Characteristics of Optical and Electromagnetic Waves in Joint Sensing of Cirrus Clouds by a Polarizing Lidar (0.355 μm) and a 94-GHz Radar (Atmospheric and Oceanic Optics, (2022), 35, 6, (775-781), 10.1134/S1024856022060239) Reviewed International journal

V. A. Shishko, D. N. Timofeev, A. V. Konoshonkin, N. V. Kustova, N. Kan, I. V. Tkachev, K. Masuda, H. Ishimoto, H. Okamoto, A. G. Borovoi

Atmospheric and Oceanic Optics   35 ( Supple. I. )   S182 - S182   2022.12   （ ISSN:1024-8560 eISSN:2070-0393 ）

Backscattering Characteristics of Optical and Electromagnetic Waves in Joint Sensing of Cirrus Clouds by a Polarizing Lidar (0.355 µm) and a 94-GHz Radar Reviewed International journal

Shishko, V. A., Timofeev, D. N., Konoshonkin, A. V., Kustova, N. V., Kan, N., Tkachev, I. V., Masuda, K., Ishimoto, H., Okamoto, H. & Borovoi, A. G

Atmospheric and Oceanic Optics   35 ( 6 )   775 - 781   2022.12   （ ISSN:1024-8560 eISSN:2070-0393 ）

Evaluation of cloud and precipitation processes in regional and global models with ULTIMATE (ULTra-sIte for Measuring Atmosphere of Tokyo metropolitan Environment): A case study using the dual-polarization Doppler weather radars Reviewed International journal

Masaki Satoh, Shuhei Matsugishi, Woosub Roh, Yasutaka Ikuta, Naomi Kuba, Tatsuya Seiki, Tempei Hashino, Hajime Okamoto

Progress in Earth and Planetary Science   9 ( 51 )   1 - 28   2022.10

355-nm direct-detection Doppler wind lidar for vertical atmospheric motion measurement Reviewed

Shoken Ishii, Kodai Kishibuchi, Hideki Takenaka, Yoshitaka Jin, Tomoaki Nishizawa, Nobuo Sugimoto, Hironari Iwai, Makoto Aoki, Seiji Kawamura, Hajime Okamoto

Applied Optics   61 ( 27 )   7925 - 7936   2022.9   （ ISSN:1559-128X eISSN:2155-3165 ）

355-nm direct-detection Doppler wind lidar for vertical atmospheric motion measurement Reviewed International journal

Shoken Ishii,Kodai Kishibuchi,Hideki Takenaka,Yoshitaka Jin,Tomoaki Nishizawa,Nobuo Sugimoto,Hironori Iwai,Makoto Aoki,Seiji Kawamura,Hajime Okamoto

Applied Optics   61 ( 25 )   in press   2022.8

Demonstration of aerosol profile measurement with a dual-wavelength high-spectral-resolution lidar using a scanning interferometer Reviewed International journal

Yoshitaka Jin, Tomoaki Nishizawa, Nobuo Sugimoto, Satoru Takakura, Makoto Aoki, Shoken Ishii, Akihiro Yamazaki, Rei Kudo, Keiya Yumimoto, Kaori Sato, Hajime Okamoto

Applied Optics   61 ( 13 )   3523 - 3532   2022.5   （ ISSN:1559-128X eISSN:2155-3165 ）

Observation of clouds, aerosols, and precipitation by multiple-field-of-view multiple-scattering polarization lidar at 355 nm Reviewed International journal

Journal of Quantitative Spectroscopy & Radiative Transfer   271 ( 107710 )   1 - 9   2021.9

A Climatological View of Horizontal Ice Plates in Clouds: Findings From Nadir and Off-Nadir CALIPSO Observations Reviewed International journal

M. Kikuchi, H. Okamoto, K. Sato

Journal of Geophysical Research: Atmospheres   126   1 - 20   2021.5

Studies on Arctic aerosols and clouds during the ArCS project Reviewed International journal

M. Koike, K. Goto-Azuma, Y. Kondo, H. Matsui, T. Mori, N. Moteki, S. Ohata, H. Okamoto, N. Oshima, K. Sato, T. Takano, Y. Tobo, J. Ukita, A. Yoshida

Polar Science   27   1 - 15   2021.3

衛星搭載高スペクトル分解ライダーによるエアロゾル・雲の全球観測,

西澤智明，神 慶孝，石井昌憲，岡本 創

レーザセンシング学会誌   1 ( 2 )   55 - 60   2020.10

衛星搭載ドップラー風ライダーによる全球風観測

石井昌憲，岡本幸三，久保田拓志，藤平耕一，松本紋子，今井 正， 境澤大亮，今村俊介， 石橋俊之，田 中泰宙，佐藤 篤，西澤智明，村田健史， 岡本 創，沖 理子，佐藤正樹，岩崎俊樹

日本レーザセンシング学会誌   1 ( 2 )   61 - 66   2020.10

イメージング FTS とドップラーライダによる全球風観測

岡本 創，木村俊義，境澤大亮，石井昌憲，西澤智明，石元裕史，佐藤可織， 及川栄治

レーザセンシング学会誌   1 ( 2 )   67 - 71   2020.10

Wavelength dependence of ice cloud backscatter properties for space-borne polarization lidar applications Reviewed International journal

HAJIME OKAMOTO, KAORI SATO,ANATOLI BOROVOI, HIROSHI ISHIMOTO, KAZUHIKO MASUDA, ALEXANDER KONOSHONKIN, AND NATALIA KUSTOVA

Optics Express   28 ( 20 )   29178 - 29191   2020.9

Evaluations of the thermodynamic phases of clouds in a cloud system-resolving model using CALIPSO and a satellite simulator over the Southern Ocean Reviewed International journal

Woosub Roh, Masaki Satoh, Tempei Hashino, Hajime Okamoto, Tatsuya Seiki

J. Atmos. Sci.   2020.8

Effect of Dust Load on the Cloud Top Ice-Water Partitioning over Northern Mid-to-High Latitudes with CALIPSO Products Invited Reviewed International journal

Kazuaki Kawamoto, Akira Yamauchi, Kentaroh Suzuki, Hajime Okamoto, and Jiming Li

Geophys. Res. Lett.   46 ( e2020GL088030 )   1 - 19   2020.7

Development of a 355-nm high-spectral-resolution lidar using a scanning Michelson interferometer for aerosol profile measurement Reviewed International journal

YOSHITAKA JIN, TOMOAKI NISHIZAWA, NOBUO SUGIMOTO, SHOKEN ISHII, MAKOTO AOKI, KAORI SATO, AND HAJIME OKAMOTO

Opt. Express   28 ( 19 )   23209 - 23222   2020.7

DEVELOPMENT OF SYNERGETIC-ACTIVE SENSOR-SYSTEM FOR EVALUATION OF OBSERVATIONS BY EARTHCARE Reviewed International journal

Okamoto, H., K. Sato, M. Fujikawa, E. Oikawa, T. Nishizawa, S. Ishii, Y. Jin, M. Aoki, N Sugimoto

EPJ Web Conferences   237 ( 07011 )   1 - 3   2020.7

LONG-TERM ANALYSES OF AEROSOL OPTICAL THICKNESS USING CALIOP Reviewed International journal

Fujikawa, M., R. Kudo, T. Nishizawa, E. Oikawa, A. Higurashi, H. Okamoto

EPJ Web Conferences   237 ( 02023 )   1 - 4   2020.7

DEVELOPMENT OF DIRECT-DETECTION DOPPLER WIND LIDAR FOR VERTICAL ATMOSPHERIC MOTION Reviewed International journal

Ishii, S., M. Aoki, K. Tominaga, T. Nishizawa, Y. Jin, N. Sugimoto, Y. Shibata, A. Sato, K. Sato, H. Okamoto

EPJ Web Conferences   237 ( 06006 )   1 - 4   2020.7

Development of a multiple-field-of-view multiple-scattering polarization li-dar system at 355nm for cloud measurements Reviewed International journal

Nishizawa, T., Y. Jin, N. Sugimoto, H. Okamoto, M. Fujikawa, S. Ishii

EPJ Web Conferences   237 ( 07009 )   1 - 3   2020.7

Relationships between Immersion Freezing and Crystal Habit for Arctic Mixed-Phase Clouds—A Numerical Study Reviewed International journal

77 ( 7 )   2411 - 2437   2020.7

Application of single and multiple-scattering theories to analyses of space-borne cloud radar and lidar data Invited Reviewed International journal

Sato K., Okamoto H.

Springer Series in Light Scattering,SPRINGER NATURE   5   1 - 37   2020.2

Interpretation of lidar ratio and depolarization ratio of ice clouds using spaceborne high-spectral-resolution polarization lidar Reviewed International journal

Hajime Okamoto, Kaori Sato, Anatoli Borovoi, Hiroshi Ishimoto, Kazuhiko Masuda, Alexander Konoshonkin, and Natalia Kustova

Opt. Express   27 ( 25 )   2019.12

Characteristics of ice clouds over mountain regions detected by CALIPSO and CloudSat satellite observations Reviewed International journal

Seiki, T., Kodama, C., Satoh, M., Hagihara, Y., & Okamoto, H.

J. Geophys. Res.-Atmosphere   124   1 - 20   2019.9

Large-and-Sparse-particle Clouds (LSC): Clouds which are subvisible for space-borne lidar and observable for space-borne cloud radar Reviewed International journal

Suginori Iwasaki, Takafumi Seguchi, Hajime Okamoto, Kaori Sato, Shuichiro Katagiri, Masatomo Fujiwara, Takashi Shibata, Kazuhisa Tsuboki, Takashi Ono, Takuji Sugidachi

Polar Science   21   117 - 123   2019.9

Measurement of water mist particle size generated by rocket launch using a two-wavelength multi-static lidar Invited Reviewed International journal

YOSHITAKA JIN, NOBUO SUGIMOTO, TOMOAKI NISHIZAWA, TAISUKE YOSHITOMI, ATSUSHI SAWADA, WATARU SARAE, AKITO HATTORI, YOSHIHIRO YAMASAKI, HAJIME OKAMOTO, AND KAORI SATO

Appl. Opt.   58 ( 23 )   6274 - 6279   2019.8

Analysis of cloud physical properties by CloudSat, CALIPSO and EarthCARE satellites Invited Reviewed

Okamoto, H., Sato K.

J. Remote Sensing Society of Japan   39 ( 3 )   197 - 206   2019.7

Aerosol and Cloud Retrieval Algorithms Using EarthCARE Satellite-Borne Lidar Data (EarthCARE 衛星搭載ライダーデータを用いた エアロゾル・雲推定アルゴリズム)

39 ( 3 )   215 - 224   2019.7

Overview of Earth, Clouds, Aerosols and Radiation Explorer (EarthCARE) - Integrative Observation of Cloud and Aerosol and Their Radiative Effects on the Climate System - Invited

Kikuchi, M., Oki R., Kubota T., Yoshida M., Hagihara Y., Takahashi C., Ohio Y., Nishizawa T., Nakajima T. Y., Suzuki K., Sato M., Okamoto H., Tomita E.

J. Remote Sensing Society of Japan   39 ( 3 )   181 - 196   2019.6

Observation of Jumping Cirrus with Ground-based Cameras, Radiosonde, and Himawari-8 Reviewed International journal

Seguchi T., Iwasaki S., Kamogawa M., Ushiyama T., Okamoto H.

Journal of the Meteorological Society of Japan   97 ( 3 )   615 - 632   2019.6

Modeling the depolarization of space-borne lidar signals Reviewed International journal

Kaori Sato, Hajime Okamoto, Hiroshi Ishimoto

Optics Express   27   A117 - A132   2019.3

Aerosol profile measurement by a high-spectral-resolution lidar with a scanning interferometer Reviewed International journal

Jin. Y. Sugimoto N., Nishizawa T., Okamoto H.

19th Coherent Laser Radar Conference   Mo14-1 - Mo14-4   2018.11

Development of Tm,Ho: YLF laser for future space-based doppler wind lidar Reviewed International journal

S. Ishii, A. Sato, M. Aoki, K. Akahane, S. Nagano, K. Nakagawa, K. Sato, H. Okamoto

Proc. SPIE 10779, Lidar Remote Sensing for Environmental Monitoring XVI,1077903   10779   2018.10

Next-generation-synergetic-observation-system for the unified analysis of CALIPSO, ADM-Aeolus and EarthCARE-ATLID Reviewed International journal

Okamoto, H., K. Sato, S. Ishii, M. Aoki, T. Nishizawa, N. Sugimoto, Jin. Y., Ohno Y., Horie H.

Proc. 19th Coherent Laser Radar Conference   We6-1-1 - We6-1-4   2018.6

Application of multiple-scattering polarization lidar for the evaluation of space-borne lidar algorithms Reviewed International journal

EPJ Web Conf.   176 ( 02014 )   02014-1 - 02014-4   2018.4

Refinement of the CALIOP cloud mask algorithm Reviewed International journal

EPJ Web Conf.   176 ( 05043 )   1 - 4   2018.4

Active sensor synergy for arctic cloud microphysics Reviewed International journal

EPJ Web Conf.   176 ( 08004 )   1 - 4   2018.4

Remote Sensing of Clouds and Precipitation Invited Reviewed International journal

Okamoto, H. and K. Sato

Springer Remote Sensing/Photogrammetry   2018.3

Differences in the fractions of ice clouds between eastern and western parts of Eurasian Continent using CALIPSO in January 2007 Reviewed International journal

@Yamauchi, A., @K. Kawamoto,, H. Okamoto

Atmospheric Science Letters   19:e807   1 - 8   2018.3

A physical model for mulIple scaQered space-borne lidar returns from clouds Reviewed International journal

Sato, K., H. Okamoto and H. Ishimoto

Optics Express   26   A301 - A319   2018.3

Power laws for the backscattering matrices in the case of lidar sensing of cirrus clouds Reviewed International journal

Kustova N.V., Konoshonkin A.V., Borovoi A., Okamoto H., Sato K., Katagiri S.

Proceedings of SPIE - The International Society for Optical Engineering   10466 ( 1046637 )   2017.11

CALIPSO衛星データから得られたバレンツ海周辺と東シベリア海周辺の雲 特性の違いについて Differences in Cloud Characteristics Between Barents Sea and East Siberian Sea Using CALIPSO Data Reviewed

https://doi.org/10.11440/rssj.37.434   434 - 441   2017.10

Development of Algorithm for Discriminating Hydrometeor Particle Types with a Synergistic Use of CloudSat and CALIPSO Reviewed International journal

Kikuchi, M., H. Okamoto, K. Sato, Y. Hagihara, K. Suzuki, N. Takahashi, G. Cesana, T. Hayasaka, R. Oki

J. Geophys. Res. Atmosphere   122   2017.10

Light scattering by ice crystals of cirrus clouds: From exact numerical methods to physical-optics approximation Reviewed International journal

Konoshonkin, A.,, A. Borovoi, N. Kusutova, H. Okamoto, H. Ishimoto, Y. Grynko, J. Foestner

J. Quant Spectrosc Radiat Transfer   195   132 - 140   2017.7

Ice cloud microphysical properties in tropical Pacific regions derived from CloudSat and CALIPSO measurements Reviewed International journal

Takahashi, N., T. Hayasaka, H. Okamoto

Radiation Processes in the Atmosphere and Ocean (IRS2016) AIP Conf. Proc.   2017.3

Development of multiple scattering polarization lidar to observe depolarization ratio of optically thick low level clouds Reviewed International journal

Okamoto H.,, K. Sato, T. Nishizawa, N. Sugimoto, Y. Jin

Radiation Processes in the Atmosphere and Ocean (IRS2016) AIP Conf. Proc.   2017.3

Relationship between ice supersaturation and ice microphysics inferred from CloudSat, CALIPSO and AIRS Reviewed International journal

Okamoto H.,, K. Sato, Y. Hagihara, H. Ishimoto

Radiation Processes in the Atmosphere and Ocean (IRS2016) AIP Conf. Proc.   2017.3

Information content of cloud physical properties derived from satellite active remote sensors Invited Reviewed International journal

Sato, H., H. Okamoto

Radiation Processes in the Atmosphere and Ocean (IRS2016) AIP Conf. Proc.   2017.3

Testing hydrometeor particle type discrimination derived from CloudSat and CALIPSO Reviewed International journal

Kikuchi, M., H. Okamoto, K. Sato, Y. Hagihara

Radiation Processes in the Atmosphere and Ocean (IRS2016) AIP Conf. Proc.   2017.3

Development of a multiple-field-of-view multiple-scattering polarization lidar: comparison with cloud radar Reviewed International journal

Okamoto H., K. Sato, T. Nishizawa, N. Sugimoto, T. Makino, Y. Jin, A. Shimizu, T. Takano, M. Fujikawa

Opt. Express   24 ( 26 )   30053 - 30067   2016.12

A study on radiative transfer effects in 3D cloudy atmosphere using satellite data Invited Reviewed International journal

Okata, M., T. Nakajima, K. Suzuki, T. Inoue, T Y. Nakajima, Okamoto H.

J. Geophys. Res. Atmos.   121   2016.12

Optical and microphysical properties of cirrus clouds retrieved from combined lidar and radar measurements Reviewed International journal

Konoshonkin, A. V.,, A. G. Borovoi, N. V. Kustova, Okamoto H., K. Sato

Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics,   2016.11

Comparison between the physical-optics approximation and exact methods solving the problem of light scattering by ice crystals of cirrus clouds Reviewed International journal

Konoshonkin, A. V.,, N. V. Kustova, A. G. Borovoi, Okamoto H., K. Sato, H. Ishimoto, E. Grynko, J. Foersstner

Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics,   2016.11

氷粒子・ダスト・惑星間塵の非球形散乱特性 Scattering properties of aerosols, ice particles and interplanetary dust particles as non-spherical particles Reviewed

岡本　創

エアロゾル研究   31 ( 3 )   176 - 184   2016.8

Evaluating Arctic Cloud Radiative Effects simulated by NICAM with A-train Reviewed International journal

Tempei Hashino, M. Satoh, Y. Hagihara, S. Kato, T. Kubota, T. Matsui, T. Nasuno, H. Okamoto, M. Sekiguchi

J. Geophys. Res. Atmosphere   121   7041 - 7063   2016.6

Depolarization ratio of clouds measured by multiple-field of view multiple scattering polarization lidar Reviewed International journal

Okamoto H., Sato, Kaori, T. Makino, T.Nishizawa, Y. Jin, N. Sugimoto

EPJ Web of Conferences ILRC 27   119 ( 11007 )   2016.6

Evaluation of retrieval algorithms for ice microphysics using CALIPSO/CloudSat and EarthCARE Reviewed International journal

Okamoto H.,, K. Sato, Y. Hagihara

EPJ Web of Conferences ILRC 27   119 ( 16007 )   2016.6

Modeling lidar multiple scattering Reviewed International journal

Sato, K., H. Okamoto, H. Ishimoto

EPJ Web of Conferences ILRC 27   119 ( 21005 )   2016.6

Using In-Situ Airborne Measurements to Evaluate Three Cloud Phase Products Derived from CALIPSO Reviewed International journal

Cesana,G., H. Chepfer, D. Winker, B. Getzewich, X. Cai, O. Jourdan, G. Mioche, H. Okamoto, Y. Hagihara, V. Noel, M. Reverdy

J. Geophys. Res. Atmosphere   121   5788 - 5808   2016.5

Differences in ice cloud microphysical properties between western and eastern tropical pacific regions derived from CloudSat and CALIPSO measurements Reviewed International journal

Takahashi, N.,, T. Hayasaka, Okamoto H.

SOLA   2016.3

Backscattering properties of non spherical ice particles calculated by geometrical-optics-integral equation method Reviewed International journal

K. Masuda, H. Ishimoto, T. Sakai, Okamoto H.

EPJ Web of Conferences ILRC27   119 ( 16001 )   2016.3

Characteristics of the Cloud Top Heights of Marine Boundary Layer Clouds and the Frequency of Marine Fog over Mid-Latitudes Reviewed International journal

Kawai, Hideaki, Yabu, Shoukichi, Y. Hagihara, Koshiro, Tsuyoshi, Okamoto H.

Journal of the Meteorological Society of Japan   93 ( 6 )   613 - 628   2015.12

Coherent and incoherent additions of light beams at solutions of the light scattering problem by use the beam tracing method within the framework of physical optics Reviewed International journal

A. V. Konoshonkin, N. V. Kustova, A. G. Borovoi, Okamoto H.

Proc. SPIE.   9680 ( 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96802X. )   2015.11

Comparison of the physical optics code with the GOIE method and the direct solution of Maxwell equations obtained by FDTD Reviewed International journal

A. V. Konoshonkin, N. V. Kustova, A. G. Borovoi, H. Ishimoto, K. Masuda, Okamoto H.

Proc. SPIE.   9680 ( 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96802M. )   2015.11

Spectral parameters estimation in precipitation for 50-MHz band atmospheric radars Reviewed International journal

Gan, Tong, Yamamoto, M.K., Hashiguchi, H., Okamoto H., Yamamoto, M.

Radio Science   2015.10

Characteristics of cirrus clouds in the tropical lower stratosphere Reviewed International journal

Iwasaki, Suginori, Luo, Z., J., Kubota, H., Shibata, T., Okamoto, Hajime, Ishimoto, H.

Atmospheric Research   164-165   358 - 368   2015.10

THE EARTHCARE SATELLITE: THE NEXT STEP FORWARD IN GLOBAL MEASUREMENTS OF CLOUDS, AEROSOLS, PRECIPITATION AND RADIATION Reviewed International journal

A. Illingworth, H. Barker, H. Chepfer, J. Delanoe, C. Domenech, D. Donovan, R. Hogan, A. Huenerbein, P. Kollias, T. Nakajima, T. Nakajima, T. Nishizawa, Y. Ohno, Okamoto H., Sato, Kaori, M. Satoh, U. Wandinger, T. Wehr, G. Zadelgoff

Bulletin of the American Meteorological Society   96 ( 8 )   1311 - 1332   2015.8

Vertical grid spacing necessary for simulating tropical cirrus clouds with a high-resolution AGCM Reviewed International journal

Seiki, T., C. Kodama, M. Satoh, T. Hashino, Y. Hagihara, Okamoto H.

Geophysical Research Letters   42 ( 10 )   4150 - 4157   2015.5

Error estimation of spectral parameters for high-resolution wind and turbulence measurements by wind profiler radars Reviewed International journal

T. Gan, M. K. Yamamoto, H. Hashiguchi, H. Okamoto, M. Yamamoto

Radio Science   49   2014.11

Comparison of global and seasonal characteristics of cloud phase and horizontal ice plates derived from CALIPSO with MODIS and ECMWF Reviewed International journal

Hirakata, M., H. Okamoto, Y. Hagihara, T. Hayasaka

Journal of Atmospheric and Oceanic Technology   31 ( 10 )   2114 - 2130   2014.10

Improvement of CALIOP cloud masking algorithms for better estimation of dust extinction profiles Reviewed International journal

Jin Yoshitaka, Kenji Kai, Okamoto Hajime, Y. Hagihara

J. Meteor. Soc. Japan   92 ( 5 )   433 - 455   2014.10

Cloud microphysical properties as seen from spaceborne passive multi-spectral imagers: interpretation in terms of vertical and horizontal inhomogeneity by using modeling and other spaceborne instruments Reviewed International journal

Nagao, Takashi, Nakajima, Takashi, Letu, Husi, Okamoto H.

Trans. JSASS Aerospace Tech. Japan   12 ( ists29 )   Tn_1 - Tn_6   2014.10

One-dimensional variational (1D-Var) retrieval of middle to upper tropospheric humidity using AIRS radiance data. Reviewed International journal

Hiroshi Ishimoto, Kozo Okamoto, Okamoto Hajime, Sato, K.

J. Geophys. Res. Atmosphere   ( 119 )   2014.6

Radiative and Microphysical Properties of Cirrus Cloud Inferred from Infrared Measurements Made by the Moderate Resolution Imaging Spectroradiometer (MODIS). Part I: Retrieval Method Reviewed International journal

Iwabuchi H., Yamada, S., Katagiri, S., Yang, P., Okamoto H.

J. Appl. Meteor. and Clim.   53 ( 5 )   1297 - 1316   2014.5

Joint analysis of cloud-top heights from CloudSat and CALIPSO: New insights into cloud-top microphysics Reviewed International journal

Hagihara Yuichiro, Okamoto Hajime, Zhengzhao Luo

J. Geophys. Res. Atmosphere   119   4087 - 4106   2014.4

衛星搭載アクティブセンサによる雲研究の現状と今後の展開 Reviewed

低温科学 Low Temperature Science   72   231 - 239   2014.3

能動型地球観測センサーによる雲・エアロゾル特性に関する研究ー２０１１年度日本気象学会賞受賞記念講演ー Invited Reviewed

岡本　創

天気   2014.3

EarthCARE衛星搭載ライダーデータを用いたエアロゾル種推定アルゴリズムの開発, Development of an Aerosol Component Retrieval Algorithm Using EarthCARE Satellite-borne Lidar data Reviewed

日本リモートセンシング学会   33 ( 5 )   367 - 376   2013.10

Evaluating cloud microphysics from NICAM against CloudSat and CALIPSO Reviewed International journal

Hashino Tempei, Masaki Satoh, Hagihara Yuichiro, Kubota Takuji, Matsui Toshihisa, Nasuno Tomoe, Okamoto Hajime

J. Geophys. Res. Atmosphere   118   7273 - 7292   2013.7

Development of aerosol and cloud retrieval algorithms using ATLID and MSI data of EarthCARE Reviewed International journal

Nishizawa Tomoaki, Sugimoto Nobuo, Matsui Ichiro, Shimizu Akira, Okamoto Hajime

Current problems in Atmospheric radiation (IRS 2012), Proc. international radiation symposium, AIP conference proceedings   1531   472 - 475   2013.5

Active remote sensing of cloud microphysics Invited Reviewed International journal

Okamoto Hajime

Current Problems in Atmospheric Radiation (IRS2012),Proc. International Symposium, AIP conference proceedings   1531   19 - 22   2013.5

Development of level 2 algorithms for EarthCARE CPR/ATLID Reviewed International journal

Okamoto Hajime, Sato Kaori, Hagihara Yuichiro, Nishizawa Tomoaki

Current Problems in Atmospheric Radiation (IRS2012), Proc. International Radiation Symposium, AIP conference proceedings   1531   448 - 451   2013.5

Global Cloud Distribution Revealed by Combined Use of CloudSat/CALIPSO: Comparison of Using CALIPSO Version 2 and 3 Data Reviewed International journal

Current problems in Atmospheric radiation (IRS 2012), Proc. international radiation symposium, AIP conference proceedings   1531   456 - 459   2013.5

Detection and analyses of hydrometer properties from EarthCARE data Reviewed International journal

Sato Kaori, Okamoto Hajime

International radiation symposium   1531   200 - 203   2013.5

Backscattering Mueller matrix for quasi- horizontally oriented ice plates of cirrus clouds: application to CALIPSO signals Reviewed International journal

Anatoli Borovoi, Alexander Konoshonkin,, Natalia Kustova, Okamoto Hajime

Opt. Express   20   2012.12

Fast and slow timescales in the tropical low-cloud response to increasing CO2 in two climate models Reviewed International journal

Watanabe, Masahiro, Shiogama, Hideo, Yoshimori, Masakazu, Ogura, Tomoo, Yokohata, Tokuta, Okamoto Hajime, Emori, Seita, Kimoto, Masahide

Climate Dynamics   39 ( 7-8 )   2012.10

Evaluation of cloud microphysics in JMA-NHM simulations using bin or bulk microphysical schemes through comparison with cloud radar observations Reviewed International journal

T. Iguchi, T. Nakajima, A. Khain, K. Saito, T. Takemura, H. Okamoto, T. Nishizawa, W. -K. Tao

J. Atmos. Sci.   69 ( 8 )   2566 - 2586   2012.8

Mixtures of stratospheric and overshooting air measured using A-Train sensors Reviewed International journal

S. Iwasaki, T. Shibata, H. Okamoto, H. Ishimoto, H. Kubota

Journal of Geophysical Research-Atmosphere   117 ( D12207 )   2012.5

Retrieved ice microphysics from CALIPSO and CloudSat and horizontally oriented ice plates Reviewed International journal

H. Okamoto, K. Sato, Y. Hagihara, T. Matsumoto, A. Borovoi

Reviewed and Revised Papers, 26th International Laser Radar Conference.   687 - 690   2012.5

Numerical and theoretical analysis of hydrometeor properties observed by spaceborne lidar and radar. Reviewed International journal

K. Sato, H. Okamoto

Reviewed and Revised Papers, 26th International Laser Radar Conference.   737 - 740   2012.5

Lidar backscattering by quasi-horizontally oriented hexagonal ice plates Reviewed International journal

A. Borovoi, A. Konoshonkin, N. Kustova, H. Okamoto

Reviewed and Revised Papers, 26th International Laser Radar Conference.   379 - 382   2012.5

Dust and ice occurrence ratios over dust sources observed by space/ground based active remote sensor Reviewed International journal

Y. Jin, K. Kai, H. Okamoto, Y. Hagihara, H. Zhou

Reviewed and Revised Papers, 26th International Laser Radar Conference.   493 - 439   2012.5

Algorithms to Retrieve Optical Properties of Three-Component Aerosols from Two-Wavelength Backscatter and One-Wavelength Polarization Lidar Measurements: Considering Nonsphericity of Dust Reviewed International journal

Nishizawa T., S. Nobuo, I. Matsui, A. Shimizu, H. Okamoto

J Quant. Spectrosc. Radiative Transfer   112 ( 2 )   254 - 267   2011.11

Refinement of global ice microphysics using spaceborne active sensors Reviewed International journal

Sato, K., H. Okamoto

J. Geophys. Res. -Atmosphere   116 ( D20202 )   2011.10

Global analysis of ice microphysics from CloudSat and CALIPSO: Incorporation of specular reflection in lidar signals Reviewed International journal

Okamoto, Hajime, Sato, K., Hagihara, Yuichiro

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   115   2010.11

Calibration of 1064nm channel and retrieval of aerosol extinction from CALIOP Reviewed International journal

Okamoto, H., N. Kumaoka, T. Nishizawa, N. Sugimoto and Y. Hagihara

Reviewed and Revised Papers, 25th International Laser Radar Conference   2010.10

EarthCARE science mission objectives Reviewed International journal

Katagiri, S., R. Oki, S. Shimizu, T. Kimura, T. Nakajima, H. Okamoto, N. Sugimoto, T. Y. Nakajima, M. Sato, Y. Takayabu, K. Sato, T. Nishizawa, T. Matsui, Y. Hagihara

ISPRS   2010.10

Aerosol Optical Properties Retrieved From Dual-Wavelength Polarized Lidar Measurements during Mirai MR01K02 Cruise Reviewed International journal

T. Nishizawa, Hajime Okamoto, Toshihiko Takemura, K. Aoki, N. Sugimoto, I. Matsui, A. Shimizu

Reviewed and Revised Papers Presented at the 23rd International Laser Radar Conference,   2010.10

CloudSat and CALIPSO for improved retrieval of liquid water cloud microphysical properties Reviewed International journal

Hagihara Y., H. Okamoto, and T.Y. Nakajima

Current Problems in Atmospheric Radiation (IRS2008), Proc. International Radiation Symposium, AIP conference proceedings   2010.10

Development of combined CloudSat and CALIPSO mask and revisit cloud top heights from CloudSat and CALIPSO Reviewed International journal

Hagihara, Y., H. Okamoto, Z. Luo

Reviewed and Revised Papers, 25th International Laser Radar Conference   2010.10

Global and seasonal characteristics of the cloud phase and ice orientation observed by CALIPSO Reviewed International journal

Hirakata, M., H. Okamoto, Y. Hagihara, R. Yoshida and T. Hayasaka

Reviewed and Revised Papers, 25th International Laser Radar Conference   2010.10

Application of optimal estimation to retrieve hydrometeor properties from lidar/radar method Reviewed International journal

Sato, K. and H. Okamoto

Reviewed and Revised Papers, 25th International Laser Radar Conference   2010.10

Ice cloud microphysics from CloudSat and CALIOP: Analysis of oriented crystals Reviewed International journal

Okamoto, H., K. Sato, Y. Hagihara and M. Hirakata

Reviewed and Revised Papers, 25th International Laser Radar Conference   2010.10

Tropical Composition, Cloud and Climate Coupling Experiment validation for cirrus cloud profiling retrieval using CloudSat radar and CALIPSO lidar Reviewed International journal

Min Deng, Gerald G. Mace, Zhien Wang, Okamoto Hajime

J. Geophys. Res.   115   2010.9

Global analysis of cloud phase and ice crystal orientation from CALIPSO data using attenuated backscattering and depolarization ratio Reviewed International journal

J. Geophys. Res.   115 ( D00H32 )   2010.8

Validity criteria of the discrete dipole approximation Reviewed International journal

Zubko,E., D. Petrov, Y. Grynko, Y. Shkuratov, H. Okamoto, K. Muinonen, T. Nousiainen, H. Kimura, T. yamamoto, and G. Videen

Appl. Opt.   49 ( 8 )   2010.7

Characteristics of deep convection measured by using the A-train constellation Reviewed International journal

Iwasaki Suginori, Shibata T., Nakamoto T., Okamoto Hajime, Ishimoto Hiroshi, Kubota H

115 ( D6 )   2010.3

Observations of cloud and aerosol from GCOM-C SGLI Reviewed International journal

T. Y. Nakajima, M. Kuji, I. Sano, Nick Schutgens, Y. Mano, J. Riedi, H. Ishida, K. Suzuki, H. Okamoto, T. Matsuia, H. Letu

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Science   XXXVIII ( 8 )   2010.1

Aerosol Retrieval from Dual-wavelength Polarization Lidar Measurements over Tropical Pacific Ocean and Validation of a Global Aerosol Transport Model Reviewed International journal

Nishizawa T., N. Sugimoto, I. Matsui, A. Shimizu, T. Takemura, and H. Okamoto

Current Problems in Atmospheric Radiation (IRS2008), Proc. International Radiation Symposium, AIP conference proceedings   2009.10

Effect of absorption on light scattering by agglomerated debris particles, Reviewed International journal

Zubko, E., H. Kimura, Y. Shkuratov, K. Muinonen, T.Yamamoto, H. Okamoto and G. Videen

J Quant Spectrosc radiative Transfer   2009.10

Cirrus Observations in the Tropical Tropopause Layer Over the Western Pacific Reviewed International journal

Fujiwara M., Iwasaki Suginori, Shimizu S., Inai Y., Shiotani M., Hasebe F., Matsui I., Sugimoto Nobuo, Okamoto Hajime, Nishi N., Hamada T., Sakazaki T., Yoneyama Kunio

J. Geophys. Res.   2009.10

Retrieval of ice cloud microphysics by synergy use of CloudSat and CALIPSO data Reviewed International journal

Okamoto, H., K. Sato and Y. Hagihara

Current Problems in Atmospheric Radiation (IRS2008), AIP conference proceedings   2009.10

Sensitivity study for the interpretation of Doppler signal of space-borne 95-GHz cloud radar Reviewed International journal

Sato K., H. Okamoto, and Y.Hagihara,

Current Problems in Atmospheric Radiation (IRS2008), Proc. International Radiation Symposium, AIP conference proceedings   2009.10

Multi-wavelength radar algorithm, with Doppler function for the retrieval of cloud microphysics with precipitation Reviewed International journal

Okamoto, H., K. Sato, S. Otomo, Y. Hagihara, R. Yoshida, K. Iwanami, T. Maesaka, M. Murakami, N. Orikasa, M. Nakazato, H. Yamauchi, H. Inoue

Current Problems in Atmospheric Radiation (IRS2008), Proc. International Radiation Symposium, AIP conference proceedings   2009.10

Cloud type and top height estimation for tropical upper-tropospheric clouds using GMS-5 split-window measurements combined with cloud radar measurements Reviewed

Hamada A., N. Nishi, S. Iwasaki, Y. Ohno, H. Kumagai and H. Okamoto

SOLA   2008.10

Testing and evaluation of ice water content retrieval methods using radar and ancillary measurements Reviewed International journal

Heymsfield, A. J., A. Protat, R. Austin, D. Bouniol, R. Hogan, H. Okamoto, K. Sato, G. Zadelhoff, D. Donovan, and Z. Wang

J. Appl. Meteor. Climate   2008.10

Algorithm to Retrieve Aerosol Optical Properties From High-Spectral-Resolution Lidar and Polarization Mie-Scattering Lidar Measurements Reviewed International journal

Nishizawa, T., N. Sugimoto, I. Matsui, A. Shimizu, B. Tatarov and H. Okamoto

IEEE Trans. Geosci. Remote Sens.   2008.10

Observation of particle fall velocity in cirriform cloud by VHS and millimeter-wave Doppler radars Reviewed International journal

Yamamoto, M., Y. Ohno, H. Horie, N. Nishi,.H. Okamoto, K, Sato, H. Kumagai, M. Yamamoto, H. Hashiguchi, S. Mori, N. O. Hashiguchi, H. Nagata and S. Fukao

J. Geophys, Res.   2008.10

Vertical cloud structure observed from shipborne radar and lidar,: mid-latitude case study during the MR01/K02 cruise of the R/V Mirai Reviewed International journal

Okamoto, H., T. Nishizawa, T. Takemura, H. Kumagai, H. Kuroiwa, N. Sugimoto, I. Matsui, A. Shimizu, A. Kamei, S. Emori, and T. Nakajima

J. Geophys. Res.   2007.10

An algorithm that retrieves aerosol properties from dual-wavelength polarized lidar measurements Reviewed International journal

Nishizawa, T., H. Okamoto, N. Sugimoto , I. Matsui, A. Shimizu , K. Aoki

J. Geophys. Res.   2007.10

Study of cloud microphysical structure with cloud profiling radar and lidar: Mirai cruise Reviewed International journal

Okamoto, H., T. Nishizawa, H. Kumagai, N. Sugimoto, T. Takemura, and T. Nakajima

IRS 2004:Current problems in Atmospheric Radiation, H. Fischer and B.-J. Sohn, Eds., A. Deepak Publishing   2006.10

Melting layer cloud observed during R/V Mirai cruise MR01-K05, Reviewed International journal

Yasunaga, K, Yoneyama, K, H. Kubota, H. Okamoto, A. Shimizu, H. Kumagai, M. Katsumata

J. Atmos. Sci.,   2006.10

Resolution Dependence of Nonhydrostatic Models in Simulating the Formation and Evolution of Low-Level Clouds during a "Yamase" Event Reviewed

Nagasawa, R., T. Iwasaki, S. Asano, K. Saito, and H. Okamoto,

J. Meteor. Soc. Japan   2006.10

Characterization of Ze and LDR of nonspherical and inhomogeneous ice particles for 95-GHz cloud radar Reviewed International journal

Sato, K., and H. Okamoto

J. Geophys. Res.   2006.10

Microphysics of Clouds and Aerosols by Combined Use of Lidar and Cloud Radar, Reviewed International journal

Okamoto, H., T. Nishizawa, K. Sato, S. Otake, M. Sensu, T. Takemura, N. Sugimoto, I. Matsui, A. Sihimizu, H. Kumagai, Y. Ohno, T. Takano and T. Nakajima

Reviewed and Revised Papers Presented at the 23rd International Laser Radar Conference   2006.10

Development of Algorithms for Air-Motion, Ice Sedimentation and Microphysics Using Lidar and Radar, Reviewed International journal

Sato, K., H. Okamoto, T. Takmura, N. Sugimoto, H. Kumagai

Reviewed and Revised Papers Presented at the 23rd International Laser Radar Conference   2006.10

Retrieval of aerosol optical properties from dual-wavelength polarization lidar measurements Reviewed International journal

Nishizawa, T., H. Okamoto, T. Takemura, N. Sugimoto, I. Matusi, and A. Shomizu

Proc.IRS 2004: Current problems in Atmospheric Radiation, H. Fischer and B.-J. Sohn, Eds., A. Deepak Publishing   2006.10

The effects of nonsphericity and variation in ice crystal bulk density on 95GHz cloud radar signals Reviewed International journal

Sato, K., and H. Okamoto

IRS 2004: Current problems in Atmospheric Radiation, H. Fischer and B.-J. Sohn, Eds., A. Deepak Publishing   2006.10

ライダーが捉えた2005年4月30日の仙台の黄砂現象 Reviewed

天気   2005.10

Retrieval of raindrop and cloud particle size distributions with 14 GHz and 95 GHz radars Reviewed

S. Iwasaki, Okamoto Hajime, H. Hanado, K. Reddy, H. Horie, H. Kuroiwa, H. Kumagai

J. Meteor. Soc. Japan   83 ( 5 )   2005.10

Lidar Observations of Aerosols and Clouds Using the Research Vessel Mirai in the MR01-K02 Cruise Reviewed

Sugimoto, N., A. Shimizu, H. Okamoto, T. Nishizawa, A. Kamei, H. Kuroiwa, H. Kumagai

Journal of Aerosol Research   2004.10

Cloud profiling radar (CPR) for EarthCARE and synergy algorithm studies Reviewed International journal

Kumagai, H., H. Kuroiwa, T. Orikasa, Y. Ohno, A. Kamei and H. Okamoto

Proc. SPIE   2004.10

EarthCARE- Earth Clouds, Aerosol and Radiation Explorer: It's Objectives and Japanese Sensor designs Reviewed International journal

Proc. SPIE   2003.10

Radiation pressure and the Poynting-Robertson effect for fluffy dust particles Reviewed International journal

H. Kimura, Okamoto Hajime, T. Mukai

ICARUS   157 ( 2 )   2002.6

Analysis of lidar returns from rectangles and hexagonal ice crystals Reviewed International journal

Iwasaki, S., and H. Okamoto

Proc. of IRS 2000   2001.10

Observation of clouds by 95GHz radar and lidar systems: radius versus fall velocity Reviewed International journal

Okamoto, H., M. Yasui, H. Horie, H. Kuroiwa, H. Kumagai and S. Iwasaki

IRS 2000 : Current Problems in Atmospheric Radiation, W. L. Smith and Y. M. Timofeyev (Eds.)   2001.10

Global three-dimensional simulation and radiative forcing of various aerosol species Reviewed

Takemura, T., H. Okamoto, A. Numaguti, A. Higurashi, and T. Nakajima

IRS 2000 : Current Problems in Atmospheric Radiation, W. L. Smith and Y. M. Timofeyev (Eds.)   2001.10

Global three-dimensional simulation and radiative forcing of various aerosol species with GCM Reviewed International journal

T. Takemura, H. Okamoto, A. Nugaguchi, K. Suzuki, A. Higurashi, T. Nakajima

Proc. SPIE   2000.10

95GHz cloud radar and lidar systems : preliminary results of cloud microphysics Reviewed International journal

Okamoto, H., S. Iwasaki, M. Yasui, H. Horie, H. Kuroiwa, and H. Kumagai

Proc. SPIE   2000.10

Retrieval of cloud microphysics using 95-GHz cloud radar and microwave radiometer Reviewed International journal

Kumagai, H. H. Horie, H. Kuroiwa, H. Okamoto and S. Iwasaki,

Proc. SPIE   2000.10

Global three-dimensional simulation of aerosol optical thickness distribution of various origins Reviewed International journal

Takemura Toshihiko, Okamoto Hajime, Y. Maruyama, A. Numaguchi, T. Nakajima

J. Geophys. Res.   105 ( D14 )   2000.7

Optical properties of fluffy aggregates as analogue of interplanetary dust particles Reviewed International journal

Nakamura, R., and H. Okamoto

Adv. Space. Res.,   1999.10

ADEOS/ILAS aerosol retrieval algorithm with 5 channels Reviewed International journal

Okamoto, H., Y. Sasano, S. Mukai, I. Sano, H. Ishihara, T. Matsumoto, L. Thomason and M. Pitts

Adv. Space. Res.   1998.10

The direct radiative forcing by tropospheric and stratospheric aerosols with geographical distribution, IRS '96 : Current Problems in Atmospheric Radiation, Reviewed International journal

Okamoto, H., T. Nakajima, Y. Maruyama, A. Numaguti and I. M. Lensky

IRS '96 : Current Problems in Atmospheric Radiation, Deepak Publishing Smith and Stamnes (Eds.)   1997.10

Improvement of the discrete dipole approximation for scattering calculations of the cluster Reviewed International journal

Okamoto, H.

The NATO Advanced Study Institute on The Cosmic Dust Connection, Kluwer Academic Publishers (J. M. Greenberg Ed.)   1996.10

Model Calculations of Near Solar Dust Properties Reviewed International journal

Mann, I., H. Ishimoto, H. Okamoto, and T. Mukai

Physics, Chemistry, and Dynamics of Interplanetary Dust, A. S. P. Conf. Ser. (B. A. A. Gustafson and M. S. Hanner eds)   104   1996.10

Applicability of a1-term method to the scattering by irregularly shaped interplanetary dust grains Reviewed International journal

Okamoto, H.

Physics, Chemistry, and Dynamics of Interplanetary Dust, A. S. P. Conf. Ser. (B. A. A. Gustafson and M. S. Hanner eds)   104   1996.10

Light scattering by fractal aggregate

Mukai, T., T. Kozasa and H. Okamoto,

Japanese Journal of Optics   1995.10

On the evolution of dust in the solar vicinity Reviewed International journal

Mann, I., T. Mukai, H. Okamoto

Adv. Space. Res. Prebiotic Chemistry in Space   1995.10

Scattering properties of ice crystals in the mm-wavelength region Reviewed International journal

Okamoto, H., A. Macke and F. Albers

Proc. IRS, The Eighth conference on atmospheric radiation   1994.10

The 10µm feature of aggregates in comets Reviewed International journal

1994.10

Fractal aggregate analogues for near solar dust properties Reviewed International journal

Mann, I., H.Okamoto, T.Mukai, H.Kimura, Y.Kitada

Astronomy and Astrophysics   1994.10

Optical properties of dust aggregates II, Angular dependence of scattered light Reviewed International journal

Kozasa, T., J. Blum, H.Okamoto, T.Mukai

Astronomy and Astrophysics,   1993.10

気象ハンドブック第３版（編集　新田,野瀬,伊藤, 住）, 46.4章 レーダ, 岡本　創, 847-849,朝倉出版, 2005.

岡本　創（ Role： Sole author）

2005.10 

Depolarization ratio of clouds measured by multiple-field of view multiple scattering polarization lidar International conference

Okamoto, Hajime, Sato Kaori, Makino, T., Nishizawa, T., Jin, Y., Sugimoto, N., Shimizu, A.

27th International Laser Radar Conference  2015.7 

Global analysis of ice microphysics and ice super-saturation from CloudSat, CALIPSO and AIRS International conference

Okamoto, Hajime, Sato Kaori, Ishimoto, Hiroshi, Tanaka, Kenta

26th IUGG General Assembly  2015.6 

Development of level 2 algorithms for CPR, CPR-ATLID and CPR-ATLID-MSI International conference

Okamoto, Hajime

Joint PI meeting of Global Environment Observation Mission 2014  2015.1 

Evaluation of ice cloud retrievals using CloudSat/CALIPSO/MODIS/AIRS and EarthCARE International conference

Okamoto, Hajime, Sato, K., Hagihara, Yuichiro, Tanaka, Kenta, Ishimoto, Hiroshi, Makino, Toshiyuki, Nishizawa, Tomoaki, Sugimoto, Nobuo

AGU Fall Meeting  2014.12 

衛星搭載雲レーダ・ライダ・赤外サウンダの複合利用による氷水量と過飽和度の解析

田中健太, 岡本　創, 佐藤 可織, 石元裕史

気象学会秋季大会  2014.10 

衛星搭載アクティブセンサによる氷粒子の波長比と微物理特性の解析

岡本　創, 佐藤 可織, 萩原 雄一朗

気象学会秋季大会  2014.10 

光学的に厚い下層雲の観測を目的とした多視野角・多重散乱ライダーの開発

牧野　利行, 岡本　創, 佐藤 可織, 田中健太, 西澤智明, 杉本伸夫, 松井一郎, 神　慶孝

気象学会秋季大会  2014.10 

日欧共同衛星計画　EarthCARE : 能動型センサが拓く雲研究の新展開 Invited

岡本　創

国立大学共同利用・共同研究協議会  2014.10 

Satellite remote sensing of cloud properties and generation mechanism Invited International conference

Okamoto, Hajime

GRENE-AWI workshop on Atmospheric Research 2014  2014.10 

Global analysis of cloud microphysics by space-borne active sensors from A-Train to EarthCARE Invited International conference

Okamoto, Hajime

Tohoku-DLR Workshop  2014.10 

EarthCARE science towards understanding nature of clouds, aerosols, radiation and cloud motion Invited International conference

Okamoto Hajime

EarthCARE Workshop 2014  2014.9 

北極域における地上・衛星観測による雲物理特性解析

岡本　創

GRENE北極研究大気課題第3回全体会議  2014.3 

JAXA science status 2013-2014 Invited International conference

Okamoto Hajime

EarthCARE JMAG meeting  2014.1 

Development of level 2 algorithms for CPR, CPR-ATLID, and CPR-ATLID-MSI International conference

Joint PI workshop of environment observation mission 2014  2014.1 

EarthCARE衛星搭載雲レーダとライダによる雲物理特性プロダクト Invited

岡本　創

気象学会  2013.11 

EarthCARE mission : Development of algorithms Invited International conference

Okamoto Hajime

The 3rd International Symposium of Atmospheric Light Scattering and Remote Sensing (ISALSaRS'13)  2013.7 

JAXA science status 2013 Invited International conference

Okamoto Hajime

EarthCARE Joint Mission Advisory Group meeting  2013.7 

CPR-ATLID/CPR-ATLID-MSI products and algorithms Invited International conference

Okamoto Hajime, Sato Kaori, Hagihara Yuichiro

EarthCARE Joint Algorithm Development Endeavor meeting  2013.7 

CPR-only level2a product for EarthCARE Invited International conference

Okamoto Hajime, Sato Kaori, Hagihara Yuichiro

EarthCARE Joint Algorithm Development Endeavor meeting  2013.7 

Ice particle type and microphysics in high latitudes by spaceborne active sensors : regional characteristic and annual variability International conference

Okamoto Hajime, Sato Kaori, Hagihara Yuichiro, Ishimoto Hiroshi

Davos-Atmosphere and Cryosphere Assembly, 2013(DACA-13)  2013.7 

CPR/CPR-ATLID/CPR-ATLID-MSI products and algorithms International conference

Okamoto Hajime, Sato Kaori, Hagihara Yuichiro

EarthCARE science meeting  2013.6 

衛星搭載アクティブセンサによる雲研究:　現状と今後の展開について

岡本 創

気象学会  2013.5 

GRENE 雲放射チームの研究概要：衛星・地上設置型ドップラー雲レーダ・ライダ観測を利用した研究計画と北極プロジェクトにおける課題

岡本 創

GRENE北極研究大気課題第２回全体会議  2013.3 

ミリ波レーダ・ライダ・ウィンドプロファイラーによる、雲物理特性と鉛直流の研究

岡本 創

光・ミリ波・マイクロ波を用いた計測技術・解析モデルの開発と その応用に関する研究集会  2013.3 

Development of level 2 algorithms for CPR/CPR-ATLID/CPR-ATLID-MSI International conference

EarthCARE PI workshop  2013.1 

Multi-year analysis of ice microphysics derived from CloudSat and CALIPSO International conference

American Geophysical Union fall meeting 2012  2012.12 

Synergy level 2b products Japan Invited International conference

EarthCARE JADE meeting  2012.11 

CPR level 2a products Japan Invited International conference

EarthCARE JADE meeting  2012.11 

JAXA science status Invited International conference

Okamoto Hajime, Teruyuki Nakajima

EarthCARE Joint Mission Advisory Group meeting  2012.11 

アクティブセンサ搭載衛星の複数年のデータ解析に基づく雲微物理特性の検証法の提案

岡本 創, 佐藤 可織, 萩原 雄一朗

日本気象学会　秋季大会  2012.10 

Development of Level 2 Algorithms for EarthCARE CPR/ATLID International conference

International Radiation Symposium 2012  2012.8 

Retrieved ice microphysics from CALIPSO and CloudSat and horizontally oriented ice plates International conference

26th International laser radar conference (ILRC)  2012.6 

Global Analyses of cloud Properties from CloudSat and CALIPSO and Development of the Level 2 Algorithms for EarthCARE International conference

CloudSat-CALIPSO-EarthCARE joint workshop  2012.6 

CloudSat-CALIPSOによる板状氷粒子の出現頻度について

岡本 創, 佐藤 可織, 萩原 雄一朗, 松本拓也, 黒木翔太

日本気象学会春季大会  2012.5 

気象学会賞記念受賞講演：アクティブセンサを用いた雲とエアロゾルの研究 Invited

岡本　創

日本気象学会  2011.5 

Development of radar and lidar simulator and its application to the evaluation of the cloud and aerosol microphysics in the AGCM Invited International conference

Okamoto, H., K. Sato, Y. Hagihara, T. Takemura, T. Nishizawa

American Geophysical Union (AGU) fall meeting  2011.12 

CloudSat-CALIPSOによる氷粒子の微物理特性: アルゴリズムの改良と微物理パラメータ間の関係

岡本　創,　佐藤可織, 萩原雄一朗, 松本拓也

日本気象学会  2011.11 

CALIOPによる氷粒子の後方散乱係数の波長比の全球解析

岡本　創、佐藤可織、萩原雄一朗

気象学会  2010.10 

Global analysis of ice cloud microphysics from CloudSat and CALIPSO : size, shape and color ratio International conference

Hajime Okamoto, Kaori Sato and Yuichiro Hagihara

The XXV international Union of Geodesy and Geophysics (IUGG) General Assembly: Earth on the Edge: Science for a Sustainable Planet  2011.6 

Global analysis of ice particle radius, particle type and color ratio using CloudSat and CALIPSO International conference

Okamoto, H. and K. Sato

CloudSat-CALIPSO science team meeting  2011.6 

CloudSat-CALIPSOによる氷粒子の後方散乱係数の 波長比, 偏光解消度と微物理特性の関係について

岡本 創, 佐藤可織, 萩原雄一朗

日本気象学会  2011.5 

気象学会賞受賞記念講演：アクティブセンサを用いた雲とエアロゾルの研究 Invited

岡本　創

日本気象学会  2011.5 

Study of cloud microphysics using radar and lidar International conference

Okamoto, H., K. Sato and Y. Hagihara, Y. Ohno, T. Sakai and H. Ishimoto

JCSEPA international workshop  2011.3 

Aerosol and clouds as observed by active sensors Invited International conference

Okamoto, H.K. Sato, Y. Hagihara, N. Sugimoto, T. Nishizawa, R. Yoshida, M. Hirakata

Joint workshop for EarthCARE/GPM/GCOM, cross cutting area Session: Sciences related with aerosols and the earth's radiation budget  2010.12 

SYnergy use of CPR and lidar to retrieve cloud microphysics International conference

H. Okamoto, K. Sato, Y. Hagihara, R. Yoshida, M. Hirakata

Joint workshop for EarthCARE/GPM/GCOM  2010.12 

Global distribution of cloud particle phase, orientation and microphysics International conference

Hajime Okamoto, Kaori Sato, Yuichiro Hagihara and Maki Hirakata

Radiation, Clouds, Aerosols, and Climate workshop  2010.8 

CALIBRATION OF 1064NM CHANNEL AND RETRIEVAL OF AEROSOL EXTINCTION International conference

Hajime Okamoto, Naoki Kumaoka, Tomoaki Nishizawa, Nobuo Sugimoto and Yuichiro Hagihara

25th International laser radar conference  2010.7 

Ice microphysics from CloudSat and CALIOP : Analysis of oriented crystlas International conference

Hajime Okamoto, Kaori Sato, Yuichiro Hagihara and Maki Hirakata

25th International laser radar conference  2010.7 

Global analysis of ice microphysics from CloudSat and CALIPSO: calibration of 1064nm channel, color ratio and ice microphysics International conference

Hajime Okamoto, Kaori Sato, Yuichiro Hagihara, Naoki Kumaoka, Maki Hirakata, Tomoaki Nishizawa and Nobuo Sugimoto

13th conference on atmospheric radiation/13th conference on cloud physics, American Meteorological Society Meeting  2010.6 

Development of synergy algorithms and products for CPR and ATLID on EarthCARE/Development of CPR algorithms and products International conference

Okamoto H., K. Sato and Y. Hagihara

EarthCARE Joint Algorithm Development Endeavour-JADE third meeting  2010.6 

CALIOPの赤外チャンネルの校正と氷粒子による後方散乱の波長の比

岡本　創、熊岡直紀、西澤智明、杉本伸夫、平形麻紀

日本気象学会春季大会  2010.5 

EarthCARE science update in Japan for JMAG#42 International conference

Okamoto, H., T. Nishizawa, T. Y. Nakajima, K. Suzuki, M. Satoh and Co-Is

42th JMAG  2024.3 

K2W, una nuova metodologia per la validazione delle misure satellitari di precipitazione da radar in banda W usando dati ground-based di Micro Rain Radar e disdrometro: risultati dalla stazione Antartica “Mario Zucchelli International conference

Bracci, A., Sato, K., Baldini, L., Porcù, F. and Okamoto, H.

5° Congresso Nazionale AISAM  2024.2 

Algorithms for retrieving cloud properties International conference

Okamoto, H., K. Sato, T. Nishizawa, T. Y. Nakajima, Y. Jin, A. Shaik, M. Ueno, H. Ishimoto

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop  2023.11 

K2W, a methodology for evaluating spaceborne W-band Doppler radar using Micro Rain Radar and disdrometer: results from an Italian station in Antarctica International conference

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop  2023.11 

Validation of L2 cloud products by CPR, CPR-ATLID, CPR-ATLID-MSI International conference

Okamoto, H, K. Sato, T. Nishizawa, Y. Jin, T. Y. Nakajima, H. Horie, Y. Ohno, Y. Hagihara, H. Iwai, S. Ishii, A. Shaik, M. Ueno, H. Ishimoto

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop  2023.11 

Development of level2 algorithms for CPR, CPR-ATLID and CPR-ATLID-MSI International conference

Okamoto, H., K. Sato, H. Ishimoto, #M. Ueno, A. Shaik

The Joint PI Meeting of JAXA Earth Observation Missions FY2023  2023.11 

Global analysis of cloud-particle categories with their physical properties International conference

Sato, K., #Komatsu, S., Okamoto, H

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop  2023.11 

Evaluation of EarthCARE CPR precipitation properties”, ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop International conference

2023.11 

Evaluation of EarthCARE Standard and Research Products for Cloud and Precipitation International conference

Sato, K., L. Baldini, A. Bracci, H. Okamoto, #S. Komatsu

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop  2023.11 

Japanese Science activities for 41st JMAG International conference

Okamoto, H., H. Horie, T. Nishizawa, T. Y. Nakajima, K. Suzuki, M. Satoh, K. Sato, W. Roh, Y. Jin, R. Kudo, M. Wang, A. Shaik, Y. Matsumoto, P. Wongnim

41th JMAG  2023.11 

衛星搭載雲レーダ・ライダ複合利用による全球雲解析

日本気象学会秋季大会  2023.10 

EarthCARE衛星がもたらす雲と対流研究への新展開

日本気象学会秋季大会  2023.10 

高スペクトル分解ライダを用いた雲・エアロゾル粒子タイプ識別

第41回レーザセンシングシンポジウム  2023.9 

Development of EarthCARE algorithms for the study of clouds, aerosol and radiation International conference

Okamoto, H., K. Sato, T. Nishizawa, T. Seto, R. Toyota

28th IUGG General Assembly  2023.7 

Cloud physical processes inferred from space-borne cloud radar International conference

Sato, K., Okamoto, H

28th IUGG General Assembly  2023.7 

EarthCARE Science updates for 40th JMAG meeting International conference

40th JMAG

2023.4 

EarthCARE science overview : vertical air motion and cloud microphysics International conference

H. Okamoto

2nd EarthCARE Modeling Workshop  2023.3 

EarthCARE Science updates for 39th JMAG meeting Invited International conference

H. Okamoto, Y. Ohno, T. Nishizawa, T. Y. Nakajima, K. Suzuki, M. Satoh, T. Ohigashi, K. Sato, T. Seiki, M. Yoshida, K. Aoki, K. Yasunaga

39th EarthCARE JMAG  2022.11 

Development of level 2 algorithms for CPR, CPR-ATLID, CPR-ATLID- MSI International conference

JAXA PI Workshop  2022.11 

Classification of particle types by MFMSPL International conference

#Masahiro Fujikawa, Hajime Okamoto, Kaori Sato, Tomoaki Nishizawa, Yoshitaka Jin, Nobuo Sugimoto, Rei Kudo and Toshiaki Takano

JAXA PI Workshop  2022.11 

北極域の降水特性の生成メカニズム解析

#呉 迪然, 岡本 創, 佐藤可織

日本気象学会秋季大会  2022.10 

アクティブセンサーによる雲複合観測 Invited

岡本　創, 佐藤可織, 及川栄治, 石元裕史、藤川雅大, 西澤智明, 神義孝, 青木誠, 石井昌憲,大野裕一, 堀江宏昭, 菊池麻紀, 岩井宏徳

地球観測衛星研究連絡会  2022.10 

ドップラー雲レーダとドップラーライダによる雲内鉛直流に関する研究

#豊田亮平、岡本 創, 佐藤可織, 堀江宏昭, 大野裕一, 岩井宏徳, 青木 誠, 西澤智明, 神 義孝, 石井昌憲

日本気象学会秋季大会  2022.10 

Interpretation of ice cloud signals from space-borne lidar

H. Okamoto, K. Sato, H. Ishimoto, K. Masuda, A. Borovoi, A. Konoshonkin, N. Kustova, T. Nishizawa, Y. Jin

40th Japanese Laser Sensing Symposium  2022.9 

Clouds, aerosol and radiation studies from A-train and EarthCARE satellites Invited International conference

Hajime Okamoto

The First Symposium on Satellite Data Assimilation in Cloudy and Precipitating Conditions (CEMC)  2022.8 

Interpretation of Space-borne Lidar Signals of Ice Clouds Invited International conference

H. Okamoto, K. Sato, A. Borovoi, H. Ishimoto, K. Masuda, A. Konoshonkin, N. Kustova

International Radiation Symposium 2022  2022.7 

EarthCARE Algorithms and Validation for Climate Change Studies International conference

H. Okamoto, K. Sato, E. Oikawa, M. Fujikawa, T. Nishizawa, Y. Jin, M. Aoki, S. Ishii, Y. Ohno, H. Horie, M. Kikuchi and I. Iwai

International Radiation Symposium 2022  2022.7 

Analysis of vertical wind velocity in relation to cloud formation by synergetic observation system International conference

H. Okamoto, T. Seto, K. Sato, E. Oikawa, Y. Hara, H. Iwai, M. Aoki, T. Nishizawa, Y. Jin, S. Ishii, H. Horie and Y. Ohno

Japan Geoscience Union Meeting 2022  2022.5 

Spaceborne Doppler cloud radar observations in clouds and precipitation International conference

Kaori Sato, Luca Baldini, Alessandro Bracci, Hajime Okamoto

Japan Geoscience Union Meeting 2022  2022.5 

Development of algorithms for EarthCARE mission for improving the representation of clouds in the models International conference

Hajime Okamoto

EarthCARE Modelling Workshop  2022.2 

EarthCARE activities in RA2 Invited International conference

H. Okamoto, Y. Ohno, T. Nishizawa, T. Nakajima, K. Suzuki, M. Satoh,R. Misumi, K. Yasunaga, K. Sato, H. Ishimoto, H. Horie, Y. Hagihara, Y. Jin, E. Oikawa, W. Roh, M. Wang, T. M. Nagao, A. Yamauchi, S. Takakura, R. Kudo

The Joint PI Meeting of JAXA Earth Observation Missions FY2021  2022.1 

Development of CPR-, CPR-ATLID-, CPR-ATLID-MSI-synergy algorithms International conference

H. Okamoto, K. Sato, E. Oikawa, H. Ishimoto, K. Nagao,#T. Seto

The Joint PI Meeting of JAXA Earth Observation Missions FY2021  2022.1 

ドップラーライダ・多重散乱偏光ライダ地上観測による雲底の鉛直流特性研究

＃瀬戸拓也, 岡本創,佐藤可織,及川栄治,藤川雅大,岩井宏徳,青木誠,石井昌憲,西澤智明,神慶孝

日本気象学会2021年度秋季大会  2021.12 

Science status for 36th EarthCARE JMAG Invited International conference

H. Okamoto, Y. Ohno, T. Nishizawa, T. Nakajima, K. Suzuki, M. Satoh, K. Yasunaga, R. Misumi, K. Sato, Y. Hagihara, Y. Jin, M. Wang, E. Oikawa, W. Roh, T. Ohigashi, H. Horie

36th EarthCARE Joint Mission Advisory Group Meeting  2021.11 

ドップラーライダと多重散乱偏光ライダ観測による鉛直流と雲底高度の関係解析

＃瀬戸拓也, 岡本創,佐藤可織,及川栄治,藤川雅大,岩井宏徳,青木誠,石井昌憲,西澤智明,神慶孝

第39回レーザセンシングシンポジウム  2021.9 

Science status for algorithms and validation activities in Japan for 35th JMAG Invited International conference

H. Okamoto, Y. Ohno, T. Nishizawa, T. Nakajima, K. Suzuki, M. Satoh, H. Horie, K. Sato, Y. Hagihara, Y. Jin, E. Oikawa, W. Roh, M. Wang, T. M. Nagao, A. Yamauchi, S. Takakura, R. Kudo

35th EarthCARE Joint Mission Advisory Group Meeting  2021.6 

衛星搭載ライダCALIOPによる平板氷晶の全球長期解析

日本気象学会2021年度春季大会  2021.5 

鉛直風測定のための直接検波式ドップラー風ライダーの受光部光学系の検討及び検証

岸淵航大, 石井昌憲, 西澤智明, 神慶孝, 中川勝広, 岡本創

第24回大気ライダー研究会  2021.3 

Second review of Earth Explore 11-01 WIVERN – A Wind Velocity Radar Nephoscope for observing global winds, clouds and precipitation Invited International conference

2021.3 

First Review of Earth Explore 11-01 WIVERN (A Wind Velocity Radar Nephoscope for observing global winds, clouds and precipitation) Invited International conference

Hajime Okamoto, Kevin Garrett

ESA EE11 1st Atmospheric Panel review meeting  2021.1 

Development of CPR-, CPR-ATLID-, a-ATLID-MSI synergy algorithms Invited International conference

H. Okamoto, K. Sato, E. Oikawa, H. Ishimoto**, M. Fujikawa, T. Yabe

JAXA EarthCARE-PI meeting  2020.12 

Current activity for future Space-Based Doppler Wind Lidar in Japan International conference

S. Ishii, K. Okamoto, K. Fujihira, A. Matsumoto, T. Kubota, T. Imai, D. Sakaizawa, S. Imamura, N. Tomii, I. Okabe , S. Yamanaka, R. Oki, M. Satoh, and T. Iwasaki

2020.11 

Japanese science update for 34th EarthCARE JMAG Invited International conference

H. Okamoto,Y. Ohno, T. Nishizawa, T. Nakajima, K. Suzuki, M. Satoh, K. Sato, Y. Hagihara, Y. Jin, M. Wang, E. Oikawa, W. Roh.

34th JMAG Meeting  2020.11 

Result of validation experiment for Aeolus wind data in Japan International conference

S. Ishii, H. Iwai, M. Aoki, M. Ohshiro, J. Amagai, P. Baron, H. Okamoto, K. Sato, E. Oikawa, T. Nishizawa, Y. Jin, N. Sugimoto

ESA Aeolus CAL/VAL workshop  2020.11 

MFMSPLを用いた大気中の粒子タイプの解析

日本気象学会2020年度秋季大会  2020.10 

EarthCARE products and challenges for climate change studies International conference

Okamoto H., Suzuki K., Satoh M., Nishizawa T., Nakajima T. Y., Sato K., Oikawa E., Ishimoto H., Kikuchi M., Kubota T., Oki R., Iguchi T., Ohno Y., Horie H., Ishii S

39th international conference on radar meteorology  2019.9 

衛星搭載ライダー・雲レーダーによる雲・エアロゾル・対流の全球観測計画

西澤智明, 岡本創, 鈴木健太郎, 石井昌憲, 神慶孝

第38回レーザセンシングシンポジウム  2020.9 

Japanese science update for 33rd EarthCARE JMAG Invited International conference

H. Okamoto,Y. Ohno, T. Nishizawa, T. Nakajima, K. Suzuki, M. Satoh, K. Sato, Y. Hagihara, Y. Jin, M. Wang, E. Oikawa, W. Roh.

33th JMAG Meeting  2020.6 

衛星搭載イメージングFTSとドップラー風ライダによる全球風速複合観測 International conference

岡本創,木村俊義,境澤大亮,石井昌憲,西澤智明

2020.5 

ドップラー雲レーダと多視野角・高スペクトル分解・偏光ドップラーライダーによる雲・エアロゾル・鉛直流観測ミッション International conference

岡本創,鈴木健太郎,西澤智明,石井昌憲,富田英一

2020.5 

Cloud and aerosol discrimination algorithm for EarthCARE/ATLID lidar International conference

E. Oikawa, H. Okamoto, T. Nishizawa, K. Sato, and R. Kudo

JpGU-AGU joint meeting 2020  2020.5 

多波長HSRL/ラマンライダーで観測されるエアロゾルの光学特性

及川栄治、岡本創、佐藤可織、西澤智明、工藤玲

2020年度日本気象学会春季大会  2020.5 

雲レーダ・ライダによるデュアルドップラー観測ミッション International conference

岡本 創, 鈴木健太郎, 西澤智明, 石井昌憲

2019.5 

Global Wind Measurement System using Doppler Wind Lidar and Imaging FTS International conference

JpGU  2020.5 

Global Wind Measurement System using Doppler Wind Lidar and Imaging FTS Invited International conference

H. Okamoto

International Workshop on Vegetation Lidar and Application from Space  2020.2 

Development of CPR-, CPR-ATLID-, CPR-ATLID-MSI synergy algorithms International conference

Okamoto H., Sato K., Oikawa E., H. Ishimoto

2020.1 

雲と気候変動予測〜能動型地球観測センサによる雲研究の新展開~ Invited

岡本　創

九州大学関⻄支部 同窓会  2020.1 

Aeolus 衛星・地上複合観測を用いた雲場と水平風速解析

＃石橋勇人，岡本 創，佐藤可織，及川栄治，藤川雅大, 石井昌憲，⻄澤智明，神慶孝

日本気象学会 2019 年度秋季大会  2019.11 

Japanese science status for 32nd JMAG for EarthCARE Invited International conference

H. Okamoto

32nd JMAG/EarthCARE  2019.11 

EarthCARE 衛星の雲・エアロゾルプロダクトの開発と検証

及川栄治, ⻄澤智明, 工藤玲, 岡本 創, 佐藤可織

日本気象学会 2019 年度秋季大会  2019.11 

Ice and water microphysics from next-generation-synergetic-ground-based active sensor systems: implication for spaceborne lidar Invited International conference

Okamoto H., Sato K., Nishizawa T., Sugimoto N., Jin Y., Ishii S., Borovoi A., Oikawa E., Kitahara T.

SPIE, ASIA PACIFIC REMOTE SENSING  2019.9 

航空機搭載多波⻑ HSRL で観測される雲・エアロゾルの光学特性

及川栄治, 岡本 創, ⻄澤智明, 佐藤可織, 工藤玲

第 37 回レーザセンシングシンポジウム  2019.9 

Studies of clouds: from ground-based and to space borne active sensors Invited International conference

H. Okamoto and K. Sato

Lecture in Zhejiang University  2019.9 

地上多視野角・多重散乱偏光ライダによる雲物理特性解析

#石橋勇人, 岡本創, 佐藤可織, 及川栄治, #藤川雅大, 石井昌憲, ⻄澤智明, 神慶孝

レーザセンシングシンポジウム  2019.9 

アクティブセンサ搭載衛星による雲研究:現状と将来計画

岡本　創

雲・放射過程研究会  2019.8 

Cloud and precipitation from active sensors International conference

Okamoto H., Sato K., Oikawa E., Nishizawa T., Jin Y., Sugimoto N, Ishii S., Aoki M, Kikuchi M, Kubota T., Iguchi T.

27th IUGG General Assembly  2019.7 

Long-Term Analyses Of Aerosol　Optical Thickness Using CALIOP International conference

＠Fujikawa M., Kudo R., Nishizawa T., Oikawa E., Higurashi A., Okamoto H.

2019.6 

Cloud and precipitation microphysics from A-Train and EarthCARE International conference

Okamoto H., Sato K., Ishii S., Ohio Y., Horie H., Nishizawa T., Kikuchi M., Sakai Y., Iguchi T., Takahashi N., Oikawa E.

SPIE, ASIA PACIFIC REMOTE SENSING  2018.6 

Next-generation-synergetic-observation-system for the unified analysis of CALIPSO, ADM-Aeolus and EarthCARE-ATLID International conference

Okamoto, H., K. Sato, S. Ishii, M. Aoki, T. Nishizawa, N. Sugimoto, Jin. Y., Ohno Y., Horie H.

19th Coherent Laser Radar Conference  2019.6 

Analysis of cloud and precipitation microphysics: From A-train to EarthCARE Invited International conference

Okamoto H. Sato K., Ishimoto H., Katagiri S.

2018.5 

アクティブセンサ搭載衛星観測による 北極域 雲の物理特性研究 Invited

岡本 創, 佐藤可織, 片桐秀一郎, 藤川雅大, 塩原匡貴, 矢吹正教, 鷹野敏明, 小池 真, 浮田甚郎

極域寒冷域研究連絡会  2019.5 

Japanese Science Status　for the 31st JMAG, EarthCARE Invited International conference

2019.5 

From CloudSat/CALIPSO to EarthCARE, Institute of Atmospheric Sciences and Climate Invited International conference

H. Okamoto

CNR (National Research Council) seminar  2019.4 

Synergetic-ground-based lidar-systems for evaluation of information content of Aeolus and EarthCARE International conference

Okamoto H., Sato K., Oikawa E., Ishii S., Aoki M., Nishizawa T., Jin Y., Sugimoto N., Fujikawa M.

Aeolus CAL/VAL and Science Workshop  2019.3 

Development of CPR-, CPR-ATLID-, CPR-ATLID-MSI synergy algorithms International conference

Okamoto H., Sato K., Oikawa E., Katagiri S., Ishimoto H.

JAXA EarthCARE-PI workshop  2019.1 

Japanese science status for 30th JMAG Invited International conference

Okamoto H.

30th JMAG EarthCARE  2018.11 

Next-generation-synergetic system for cloud microphysics from spaceborne lidar Invited International conference

Okamoto H., Sato K.

RAD-lidar conference 2018  2018.11 

CloudSat-CALIPSO, Aeolus, EarthCAREと GPMによる雲・降水解析

岡本 創, 佐藤可織, 及川栄治, 月原健太郎, 長谷川奏一

2018年度気象学会秋季大会  2018.10 

EarthCARE衛星搭載次世代型アクティブセンサと期待される科学的成果

岡本 創

第62回宇宙科学技術連合講演会  2018.10 

EarthCARE Science Status (2) Invited International conference

Okamoto H.

7th international Earthcare science workshop  2018.6 

Observations of cloud- and precipitation-microphysics and vertical air motion International conference

Okamoto H., Sato K., Ishimoto H., Katagiri S. Oikawa E.

7th international Earthcare science workshop  2018.6 

Cloud microphysics from CloudSat/CALIPSO to EarthCARE International conference

Okamoto H. Sato K., Katagiri S.

EGU  2018.4 

Observing clouds, precipitation and air motion International conference

Okamoto, H., Sato K., Katagiri S., H. Ishimoto

JAXA Earth observation Satellite Joint PI Workshop  2018.1 

Ground-based radar and lidar measurements for evaluation of EarthCARE products Invited International conference

Okamoto, H., Sato K., Sugimoto N., Ishii S., Nishizawa T., Aoki M., Ohio Y., Horie H.

EarthCARE 28th JMAG  2017.12 

北極混合相層雲における氷晶核形成過程と晶癖分布の関係

日本気象学会  2017.10 

EarthCARE衛星雲解析アルゴリズム: 氷粒子のライダ比と偏光解消度

日本気象学会  2017.11 

完全減衰を考慮したCALIPSO 雲マスクおよび雲相識別による雲量

日本気象学会  2017.11 

多視野角・多重散乱ライダによる雲域・降水域の識別手法の開発と検証

日本気象学会  2017.11 

Refinement of cloud mask and cloud particle type algorithms for synergistic use of space-borne lidar and cloud radar data International conference

Katagiri S., Sato K., Okamoto H., #Fujikawa M.

Asian conference on meteorology 2017  2017.10 

Development of a suite of EarthCARE algorithms for cloud studies: Beyond CloudSat and CALIPSO International conference

Okamoto H., Sato K., Katagiri S., Ishimoto, H., Borovoi A.

Asian conference on metrology 2017  2017.10 

MODIS- CALIPSO-CloudSat synergy for the analysis of ice cloud microphysics International conference

#Kitagata H., Okamoto H., Sato K., Katagiri S., Ishimoto, H.

Asian conference on metrology 2017(  2017.10 

Cloud and precipitation properties by radar reflectivity factor and path integral attenuation from CloudSat and CALIPSO International conference

#Sakai,Y., Okamoto H., Sato K., Katagiri S.

Asian conference on meteorology 2017  2017.10 

Relationship of backscatter color ratio, lidar ratio and depolarization ratio of ice, water and aerosols and the wavelength- dependence International conference

*Kitahara T., Okamoto H., Sato K., Katagiri S.

Asian conference on meteorology 2017  2017.10 

Cloud-feedbacks from CloudSat/CALIPSO to EarthCARE International conference

Okamoto H., Sato K., Katagiri S.

2017 CFMIP Meeting on Clouds, Precipitation, Circulation  2017.9 

Inter Annual Variability of Water and Ice Cloud Fractions from CALIPSO

Katagiri S., Sato K., Okamoto H., Fujikawa M.

35th Laser Sensing Symposium  2017.8 

Particle discrimination method by Multi Field of view Multiple Scattering Polarization Lidar

#Fujikawa M., Okamoto H., Sato K., Katagiri S., Nishizawa T., Sugimoto N., Jin Y., Kudo R., Takano T.

35th Laser Sensing Symposium  2017.8 

Analysis of cloud microphysical properties using CALIPSO・MODIS・CloudSat

＃Kitagata H., Okamoto H., Sato K., Katagiri S.

2017.8 

Analysis of lidar ratio and depolarization ratio for aerosols and cloud using High Spectral Resolution Lidar

35th Laser Sensing Symposium  2017.8 

REFINEMENT OF THE CALIOP CLOUD MASK ALGORITHM International conference

Katagiri S., Sato K., Ohta K., Okamoto H.

28th International Laser-Radar Conference  2017.6 

Application of multiple-scattering polarization lidar for the evaluation of space-borne lidar algorithms International conference

Okamoto H., Sato K., Katagiri S., Fujikawa M., Nishizawa T., Sugimoto N., Jin Y., Shimizu A., Ishimoto H.

28th International Laser-Radar Conference  2017.6 

Active sensor synergy for Arctic cloud microphysics International conference

Sato K., Okamoto H., Katagiri S., Shiobara M., Yabuki M., Takano, T.

28th International Laser-Radar Conference  2017.6 

Japanese Science Status for 27th JMAG Invited International conference

Okamoto H.

EarthCARE 27th JMAG  2017.6 

From CloudSat-CALIPSO to EarthCARE and new ground-based instruments Invited International conference

Okamoto H., Sato K., Katagiri S.

Clouds, their Properties, and their Climate Feedbacks  2017.6 

Cloud observations from the Arcs and EarthCARE project Invited International conference

Sato K., Okamoto H.

Clouds, their Properties, and their Climate Feedbacks  2017.6 

The EarthCare mission: Understanding the global Cloud-Radiation distributions International conference

Sato K., Okamoto H. Katagiri, S.

GS10 Satellite Conference  2017.5 

Global analyses of cloud fraction and cloud phase by using spaceborne-lidar International conference

Katagiri S., Sato K., Okamoto H.

JpGU-AGU Joint Meeting 2017  2017.5 

Global water cloud microphysics from active sensor synergy toward the EarthCARE mission Invited International conference

Sato, K., Okamoto H., Katagiri S.

JpGU-AGU Joint Meeting 2017  2017.5 

Development of CloudSat/CALIPSO- and EarthCARE-algorithms for the studies of cloud macroscale- and microphysical properties Invited International conference

Okamoto H. Sato K., Katagiri S.

JpGU-AGU Joint Meeting 2017  2017.5 

EarthCAREサイエンスチーム進捗状況 Invited

岡本　創

EarthCARE-CPR委員会  2017.1 

Development of L2 algorithms for CPR/CPR-ATLID/CPR-ATLID-MSI. Invited International conference

Okamoto, H., K. Sato, S. Katagiri

JAXA EarthCARE PI workshop  2017.1 

Japanese Science Status for the 26th JMAG Invited International conference

Okamoto, H.

EarthCARE 27th JMAG  2016.12 

Water cloud retrievals from satellite measurement Invited International conference

Sato, K., H. Okamoto, T. Taano, M. Shiobara, H. Yabuki

Japan-German workshop on Arctic science  2016.11 

Cloud properties in relation to sea-ice Invited International conference

Okamoto, H., K. Sato, S. Katagiri, K. Ota, J. Ukita, M. Shiobara, H. Yabuki, T. Takano

Japan-German workshop on Arctic science  2016.11 

Cloud microphysics retrieval combining active sensors toward the EarthCARE mission (JAXA/ESA) Invited International conference

Sato, K. and H. Okamoto

RadLidar workshop  2016.11 

Multiple scattering polarization lidar and application for CALIPSO and EarthCARE algorithms Invited International conference

Okamoto, H., K. Sato, S. Katagiri, M. Fujikawa, T. Nishizawa, N. Sugimoto

RadLidar workshop  2016.11 

CALIOPデータを用いた雲マスクプロダクトの改訂

片桐秀一郎、岡本創、佐藤可織、#藤川雅大

日本気象学会  2016.10 

衛星搭載ライダを用いた新しい水雲プロダクト

佐藤可織、岡本創、片桐秀一郎、石元裕史

日本気象学会  2016.10 

ライダーデータを用いたエアロゾルコンポーネント導出パッケージの開発

西澤智明、工藤玲、岡本創

日本気象学会  2016.10 

CloudSat-CALIPSOからEarthCAREへ：雲物理特性プロダクト改訂

岡本創、佐藤可織、片桐秀一郎

日本気象学会  2016.10 

衛星・地上型アクティブセンサによるニーオールスンの雲物理量の統計解析

太田晃平、岡本創、佐藤可織、鷹野敏明、塩原匡貴、矢吹正教

日本気象学会  2016.10 

多視野角・多重散乱偏光ライダーによる粒子タイプ識別及び偏光解消度を用いた雲の相識別手法の開発

#藤川雅大、岡本創、佐藤可織、西澤智明、杉本伸夫、神慶孝、工藤玲、鷹野敏明

日本気象学会  2016.10 

晶癖予測モデルにより再現される北極混合相層雲の評価

端野典平、Gijs de Boer, 岡本　創

日本気象学会  2016.10 

EarthCARE mission: what to be learned and what the remaining gaps will be Invited International conference

Okamoto, H. and K. Suzuki

Atmos Radar Symposium  2016.10 

2波長マルチスタティックライダーによるロケット打上時の水ミスト粒径計測

吉富泰助、澤田敦司、更江渉、服部昭人、杉本伸夫、西澤智明、神慶孝、岡本　創、佐藤可織

第34回レーザセンシングシンポジウム  2016.9 

衛星・地上型アクティブセンサの複合利用によるニーオールスンの雲特性の解析

#太田晃平、岡本創、佐藤可織、鷹野敏明、塩原匡貴、矢吹正教

第34回レーザセンシングシンポジウム  2016.9 

偏光解消度を用いた多視野角・多重散乱ライダーによる大気粒子タイプの解析

#藤川雅大、岡本創、佐藤可織、西澤智明、杉本伸夫、神慶孝、工藤玲、鷹野敏明

第34回レーザセンシングシンポジウム  2016.9 

Japan science status in June 2016 Invited International conference

Okamoto, H.

EarthCARE 25th JMAG  2016.6 

衛星搭載アクティブセンサを用いた北極域の雲特性解析

佐藤可織、岡本創、#太田晃平、浮田甚郎

日本気象学会  2016.5 

CloudSat-CALIPSO-AIRSの複合利用による氷粒子微物理特性の形成メカニズムの全球解析

岡本創、佐藤可織、石元裕史

日本気象学会  2016.5 

多視野角・多重散乱ライダーによる大気中の粒子タイプ識別手法の開発

＃藤川雅大、岡本創、佐藤可織、西澤智明、杉本伸夫、神慶孝、工藤玲

日本気象学会  2016.5 

衛星・地上型アクティブセンサの複合利用によるニーオールスンの雲特性の解析

#太田晃平、岡本創、佐藤可織、鷹野敏明、塩原匡貴、矢吹正教

日本気象学会  2016.5 

EarthCARE related activities about cloud retrievals International conference

Okamoto, Hajime

GEWEX UTCC PROES meeting  2016.4 

Improvement of Hydrometeor Particle Type Discrimination derived from CloudSat and CALIPSO International conference

Kikuchi, Maki, Okamoto, Hajime, Sato Kaori, Hagihara, Yuichiro

IRS 2016  2016.4 

INFORMATION CONTENT OF CLOUD PHYSICAL PROPERTIES DERIVED FROM SATELLITE ACTIVE REMOTE SENSORS International conference

Sato Kaori, Okamoto, Hajime

IRS 2016  2016.4 

SYNERGISTIC USE OF SPACE-BORNE CLOUD RADAR, LIDAR, and IMAGER FOR RETRIEVAL OF CLOUD MICROPHYSICAL PROPERTIES International conference

Hagihara, Yuichiro, Okamoto, Hajime

IRS 2016  2016.4 

北極域の雲特性と海氷相互作用研究

岡本　創, 佐藤 可織, 田中健太, 浮田　甚郎, 岩本　勉之, 塩原　匡貴, 矢吹　正教, 鷹野　敏明, 小池　真

GRENE北極気候変動研究事業研究成果報告会  2016.3 

EarthCAREの検証システムとしての多視野角・多重散乱ライダ開発 Invited

岡本　創