Application of multiple scattering theories to spaceborne active sensors for understanding the physical processes related to clouds and precipitation

• Project/Area Number: 18K03745
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 17020:Atmospheric and hydrospheric sciences-related
• Research Institution: Kyushu University
• Principal Investigator: Sato Kaori 九州大学, 応用力学研究所, 助教 (00584236)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 衛星観測 / 散乱素過程 / 雲・降水過程 / 衛星搭載アクティブセンサ / 多重散乱物理過程モデル / 雲・降水物理過程 / 雲物理特性 / 雲・降水粒子解析技術 / 衛星アクティブセンサ / 多重散乱 / 雲微物理特性

Outline of Final Research Achievements

A physical model was developed to provide fast estimates of the polarization properties of spaceborne lidar returns from clouds under multiple scattering conditions for global analysis. The simulated depolarization ratio profiles from the developed method showed good agreement with Monte Carlo simulations.

Academic Significance and Societal Importance of the Research Achievements

衛星搭載アクティブセンサは気候変動の研究で重要な研究課題の一つである雲の全球観測に有効な手段として期待されている。本研究課題では、この衛星観測量の解釈に重要な物理機構の解明と新たな定式化を行うことで、衛星解析上の長年の課題を解決し国際学術誌において評価された。開発した手法は将来衛星計画の進展にも役立つと期待されている。

Research Products

• [Journal Article] Studies on Arctic aerosols and clouds during the ArCS project (2021)
  • Author(s): 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, and A. Yoshida
  • Journal Title: Polar Science Volume: 27 Pages: 1-11
  • DOI: 10.1016/j.polar.2020.100621
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Observation of clouds, aerosols, and precipitation by multiple-field-of-view multiple-scattering polarization lidar at 355 nm (2021)
  • Author(s): T. Nishizawa, Y. Jin, N. Sugimoto, K. Sato, M. Fujikawa, S. Ishii, M. Aoki, K. Nakagawa, H. Okamoto
  • Journal Title: Journal of Quantitative Spectroscopy & Radiative Transfer Volume: in press
  • Peer Reviewed
• [Journal Article] A Climatological View of Horizontal Ice Plates in Clouds: Findings from Nadir and Off-Nadir CALIPSO Observations (2021)
  • Author(s): M. Kikuchi, H. Okamoto, K. Sato
  • Journal Title: Journal of Geophysical Research - Atmospheres Volume: in press
  • Peer Reviewed
• [Journal Article] Development of a 355-nm high-spectral-resolution lidar using a scanning Michelson interferometer for aerosol profile measurement (2020)
  • Author(s): Jin Y., Nishizawa T., Sugimoto N., Ishii S., Aoki M., Okamoto H.
  • Journal Title: Opt. Express Volume: 28 Issue: 16 Pages: 23209-23222
  • DOI: 10.1364/oe.390987
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Wavelength dependence of ice cloud backscatter properties for space-borne polarization lidar applications (2020)
  • Author(s): Hajime Okamoto, Kaori Sato, Anatoli Borovoi, Hiroshi Ishimoto, Kazuhiko Masuda, Alexander Konoshonkin, Natalia Kustova
  • Journal Title: Optics Express Volume: 28 Issue: 20 Pages: 29178-29191
  • DOI: 10.1364/oe.400510
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Application of single and multiple-scattering theories to analyses of space-borne cloud radar and lidar data (2020)
  • Author(s): Sato K., Okamoto H.
  • Journal Title: Springer Series in Light Scattering Volume: 5 Pages: 1-37
  • DOI: 10.1007/978-3-030-38696-2_1
  • ISBN: 9783030386955, 9783030386962
  • Peer Reviewed
• [Journal Article] Development of a high-spectral-resolution lidar at 355 nm and 532 nm using a scanning interferometer (2020)
  • Author(s): Jin Y., Nishizawa T., Sugimoto N., Ishii S., Aoki M., Okamoto H. Sato K.
  • Journal Title: proc. ILRC29 Volume: -
  • Peer Reviewed
• [Journal Article] Development of direct-detection doppler wind lidar for vertical atmospheric motion (2020)
  • Author(s): Ishii S., Aoki M., Tominaga K., Nishizawa T., Jin Y., Sugimoto N., Shibata Y., Sato A., Sato K., Okamoto H.
  • Journal Title: proc.ILRC29 Volume: -
  • Peer Reviewed
• [Journal Article] Development of synergetic-active sensor-system for evaluation of observations by EarthCARE (2020)
  • Author(s): Okamoto H., Sato K., Fujikawa M., Oikawa E., Nishizawa T., Ishii S., Jin Y., Aoki M., Sugimoto N.
  • Journal Title: proc.ILRC29 Volume: -
  • NAID: 120007001017
  • Peer Reviewed
• [Journal Article] Analyzing Cloud Physical Properties with the CloudSat, CALIPSO, and EarthCARE satellites (2019)
  • Author(s): Okamoto H., Sato K
  • Journal Title: Journal of The Remote Sensing Society of Japan Volume: 39 Issue: 3 Pages: 197-206
  • DOI: 10.11440/rssj.39.197
  • NAID: 130007787537
  • ISSN: 0289-7911, 1883-1184
  • Year and Date: 2019-07-20
  • Peer Reviewed / Open Access
• [Journal Article] Interpretation of lidar ratio and depolarization ratio of ice clouds using spaceborne high-spectral-resolution polarization lidar (2019)
  • Author(s): Okamoto H., Sato K, Borovoi A., Ishimono H., Masuda K., Konoshonkin A., Kustova N.
  • Journal Title: Optics Express Volume: 27 Issue: 25 Pages: 36587-36587
  • DOI: 10.1364/oe.27.036587
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Measurement of water mist particle size generated by rocket launch using a two-wavelength multi-static lidar (2019)
  • Author(s): Jin, Y., Sugimoto N., Nishizawa T., Yoshitomi T., Sawada A., Sarae W., Hattori A., Yamasaki Y., Okamoto H., Sato K.
  • Journal Title: Applied Optics Volume: 58 Issue: 23 Pages: 6274-6274
  • DOI: 10.1364/ao.58.006274
  • Peer Reviewed
• [Journal Article] Large-and-Sparse-particle Clouds (LSC): Clouds which are subvisible for space-borne lidar and observable for space-borne cloud radar (2019)
  • Author(s): Iwasaki S., Seguchi T., Okamoto H., Sato K., Katagiri S., Fujiwara M., Shibata T., Tsuboki K., Ono T., Sugidachi T.
  • Journal Title: Polar Science Volume: 21 Pages: 117-123
  • DOI: 10.1016/j.polar.2019.05.003
  • Peer Reviewed
• [Journal Article] Modeling the depolarization of space-borne lidar signals (2019)
  • Author(s): Sato K., Okamoto H., Ishimoto H.
  • Journal Title: Optics Express Volume: 27 Issue: 4 Pages: A117-A117
  • DOI: 10.1364/oe.27.00a117
  • Peer Reviewed / Open Access
• [Journal Article] Analysis of cloud physical properties by CloudSat,CALIPSO and EarthCARE satellites (2019)
  • Author(s): Okamoto H., Sato K.
  • Journal Title: J. Remote Sens. Soc. Japan Volume: 印刷中
  • Peer Reviewed / Open Access
• [Journal Article] Development of Tm,Ho: YLF laser for future space-based doppler wind lidar (2018)
  • Author(s): Ishii S., Akahane K., Nagano S., Nakagawa K., Sato K., Okamoto H., Sato A., Aoki M.
  • Journal Title: Proc. SPIE Volume: 10779 Pages: 2-2
  • DOI: 10.1117/12.2324388
  • Peer Reviewed
• [Journal Article] ACTIVE SENSOR SYNERGY FOR ARCTIC CLOUD MICROPHYSICS (2018)
  • Author(s): Sato K., Okamoto H., Katagiri S., Shiobara M., Yabuki M., Takano T.
  • Journal Title: EPJ Web of Conferences Volume: 印刷中 Pages: 08004-08004
  • DOI: 10.1051/epjconf/201817608004
  • Peer Reviewed / Open Access
• [Journal Article] Next-generation-synergetic-observation-system for the unified analysis of CALIPSO, ADM-Aeolus and EarthCARE-ATLID (2018)
  • Author(s): Okamoto H., Sato K., Ishii S., Aoki M., Nishizawa T., Sugimoto N., Jin Y., Ohio Y., Horie H., Fujikawa M.
  • Journal Title: CLRC2018 Volume: －
  • Peer Reviewed / Open Access
• [Journal Article] APPLICATION OF MULTIPLE-SCATTERING POLARIZATION LIDAR FOR THE EVALUATION OF SPACE-BORNE LIDAR ALGORITHMS (2018)
  • Author(s): Okamoto H., Sato K., Katagiri S., Fujikawa M., Nishizawa T., Sugimoto N., Jin Y., Shimizu A., Ishimoto H.
  • Journal Title: EPJ Web of Conferences Volume: 印刷中 Pages: 02014-02014
  • DOI: 10.1051/epjconf/201817602014
  • Peer Reviewed / Open Access
• [Journal Article] REFINEMENT OF THE CALIOP CLOUD MASK ALGORITHM (2018)
  • Author(s): Katagiri S., Sato K., Ohta K., Okamoto H.
  • Journal Title: EPJ Web of Conferences Volume: 印刷中 Pages: 1-4
  • DOI: 10.1051/epjconf/201817605043
  • Peer Reviewed / Open Access
• [Presentation] Cloud, Aerosol and Radiation Explorer for Understanding Clouds and the Climate System (2021)
  • Author(s): K. Sato
  • Organizer: SDGs Think & Act Together
  • Int'l Joint Research / Invited
• [Presentation] Japanese science update for 34th EarthCARE JMAG (2020)
  • Author(s): H. Okamoto,Y. Ohno, T. Nishizawa, T. Nakajima, K. Suzuki, M. Satoh, K. Sato, Y. Hagihara, Y. Jin, M. Wang, E. Oikawa, W. Roh.
  • Organizer: 34th JMAG Meeting
  • Int'l Joint Research / Invited
• [Presentation] Japanese science update for 33rd EarthCARE JMAG (2020)
  • Author(s): H. Okamoto,Y. Ohno, T. Nishizawa, T. Nakajima, K. Suzuki, M. Satoh, K. Sato, Y. Hagihara, Y. Jin, M. Wang, E. Oikawa, W. Roh.
  • Organizer: 33th JMAG Meeting
  • Int'l Joint Research / Invited
• [Presentation] Development of CPR-, CPR-ATLID, CPR-ATLID-MSI synergy algorithms (2020)
  • Author(s): H. Okamoto, K. Sato, E. Oikawa, H. Ishimoto, M. Fujikawa, T. Yabe
  • Organizer: JAXA EarthCARE-PI meeting
  • Int'l Joint Research / Invited
• [Presentation] MFMSPLを用いた大気中の粒子タイプの解析 (2020)
  • Author(s): M. Fujikawa, H. Okamoto, K. Sato, T. NISHIZAWA, Y. Jin, N. Sugimoto, R. Kudo
  • Organizer: 日本気象学会2020年度秋季大会
• [Presentation] 衛星搭載ライダCALIOPによる平板氷晶の全球長期解析 (2020)
  • Author(s): M. Kikuchi, H. Okamoto, K. Sato
  • Organizer: 日本気象学会2021年度春季大会
• [Presentation] Studying cloud and drizzle from space borne active sensors (2019)
  • Author(s): Sato K.
  • Organizer: 27th IUGG General Assembly
  • Int'l Joint Research
• [Presentation] EarthCARE L2 cloud/precipitation retrieval algorithms (2019)
  • Author(s): Sato K.
  • Organizer: 39th international conference on radar meteorology
  • Int'l Joint Research
• [Presentation] EarthCARE L2 algorithms for cloud and precipitation (2019)
  • Author(s): Sato K.
  • Organizer: JPGU 2019
• [Presentation] Simulations and ground-based observations for cloud studies from space-borne lidars (2019)
  • Author(s): Sato K., Okamoto H.
  • Organizer: Aeolus cal/val & science workshop
  • Int'l Joint Research
• [Presentation] Global analysis of water cloud processes from active sensors (2018)
  • Author(s): Sato K., Okamoto H.
  • Organizer: EGU General Assembly
  • Int'l Joint Research
• [Presentation] Development and Application of a physical model-based active sensor retrieval scheme (2018)
  • Author(s): Sato K., Okamoto H., Ishimoto H.
  • Organizer: JpGU Meeting
• [Presentation] Physical model approach (PM) for the analysis of active sensor systems (2018)
  • Author(s): Sato K., Okamoto H., Ishimoto H., Ishii S.
  • Organizer: 19th Coherent Laser Radar Conference
  • Int'l Joint Research
• [Presentation] EarthCARE L2 cloud/precipitation algorithms (2018)
  • Author(s): Sato K., Okamoto H., Ishimoto H., Katagiri S.
  • Organizer: 7th International EarthCARE Science Workshop & 1st ESA EarthCARE Validation Workshop
  • Int'l Joint Research
• [Presentation] Application of a physical model to satellite-borne active sensors for cloud process studies (2018)
  • Author(s): Sato K., Okamoto H.
  • Organizer: SPIE Asia-Pacific remote sensing
  • Int'l Joint Research
• [Presentation] Physical model for spaceborne active sensors (2018)
  • Author(s): Sato K., Okamoto H.
  • Organizer: RadLidar conference
  • Int'l Joint Research / Invited