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L-バンドマイクロ波センサを使った高風速・強降雨域の海上風速推定

Research Project

Project/Area Number 18K11611
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 63010:Environmental dynamic analysis-related
Research InstitutionHokkaido University

Principal Investigator

江淵 直人  北海道大学, 低温科学研究所, 教授 (10203655)

Co-Investigator(Kenkyū-buntansha) 阿部 泰人  北海道大学, 水産科学研究院, 助教 (40627246)
Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords衛星リモートセンシング / 海上風 / L-バンドマイクロ波センサ / 熱帯低気圧 / 台風 / 降雨補正 / 大気海洋相互作用 / マイクロ波放射計 / マイクロ波散乱計 / 海上風観測 / L-バンドマイクロ波
Outline of Annual Research Achievements

本研究は,近年入手が可能になった衛星搭載 L-バンドマイクロ波センサ(放射計,散乱計,合成開口レーダ)のデータを利用し,熱帯低気圧中心部などの高風速・強降雨域の海上風速を高精度で推定する手法を開発することを目的とした.これまで,衛星観測による高風速域の海上風速は,基準となる正確な現場観測データを得る手法がないため,主に,中風速域で求めた係数等を高風速域に外挿することで推定されており,精度の評価も難しい状況であった.これに対し,本研究では,降雨の影響が少ない L-バンドマイクロ波センサの観測データを利用し,最近の国際ワークショップで推奨された校正済みの航空機搭載マイクロ波放射計のデータを基準風速とする手法を適用して,高風速(20 m/s 以上)・強降雨域の海上風速を高精度(± 7 m/s 以内)で推定するアルゴリズムを開発し,台風・ハリケーン・サイクロンなどの熱帯低気圧周辺の高風速域のデータセットを作成した.
米国海洋大気庁の研究協力者から入手したドロップゾンデデータで校正済みの航空機搭載 Stepped-Frequency Microwave Radiometer (SFMR) の最新版データに空間平滑化を施すことによって作成した衛星センサの空間分解能(30~60 km) に対応する基準データを使用して,Aquarius 衛星および SMAP 衛星に搭載されたL-バンドマイクロ波放射計用の風速算出アルゴリズムを作成した.このアルゴリズムで算出したハリケーン周辺の高風速・強降雨域の海上風速データは,残差の標準偏差 3.8 m/s 程度で基準データとよく一致することが示さ,当初の目標精度は達成できた.このアルゴリズムを使用して,2011-2022年の北太平洋・北大西洋の台風・ハリケーン周辺の海上風のデータセットを作成した.

Report

(5 results)
  • 2022 Annual Research Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (30 results)

All 2022 2021 2020 2019 2018

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (21 results) (of which Int'l Joint Research: 10 results,  Invited: 3 results) Book (1 results)

  • [Journal Article] Fundamental studies concerning observations of the sea surface by spaceborne microwave sensors and their applications for oceanography2022

    • Author(s)
      Ebuchi Naoto
    • Journal Title

      Oceanography in Japan

      Volume: 31 Issue: 1 Pages: 1-21

    • DOI

      10.5928/kaiyou.31.1_1

    • NAID

      130008159832

    • ISSN
      0916-8362, 2186-3105
    • Year and Date
      2022-02-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Salinity regime of the northwestern Bering Sea shelf2021

    • Author(s)
      Abe Hiroto、Nomura Daiki、Hirawake Toru
    • Journal Title

      Progress in Oceanography

      Volume: 198 Pages: 102675-102675

    • DOI

      10.1016/j.pocean.2021.102675

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of spatial distribution of high wind speed around typhoons derived from AMSR2 All-weather Sea Surface Wind Product with JMA best-track data2020

    • Author(s)
      Ebuchi, N.
    • Journal Title

      Proceedings of IGARSS 2020

      Volume: なし Pages: 5777-5778

    • DOI

      10.1109/igarss39084.2020.9324032

    • Related Report
      2020 Research-status Report
  • [Journal Article] Distinctive spring phytoplankton bloom in the Bering Strait in 2018: A year of historically minimum sea ice extent2020

    • Author(s)
      Kikuchi, G., H. Abe, T. Hirawake, and M. Sampei
    • Journal Title

      Deep-Sea Research, Part II

      Volume: 181-182 Pages: 104905-104905

    • DOI

      10.1016/j.dsr2.2020.104905

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stratification in the northern Bering Sea in early summer of 2017 and 20182020

    • Author(s)
      Ueno, H., M. Komatsu, Z. Ji, R. Dobashi, M. Muramatsu, H. Abe, K. Imai, A. Ooki, and T. Hirawake
    • Journal Title

      Deep-Sea Research, Part II

      Volume: 181-182 Pages: 104820-104820

    • DOI

      10.1016/j.dsr2.2020.104820

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Long-term observations of the global water cycle, air-sea interactions and polar environments by GCOM-W/AMSR2.2019

    • Author(s)
      Ebuchi, N., M. Kachi, H. Fujii, T. Maeda, N. Ono, M. Kasahara, H. Shimoda, and the AMSR2 Science Team
    • Journal Title

      Proceedings of 2019 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2019)

      Volume: なし Pages: 4674-4676

    • DOI

      10.1109/igarss.2019.8898202

    • Related Report
      2019 Research-status Report
  • [Journal Article] Aquarius reveals eddy stirring after a heavy precipitation event in the subtropical North Pacific2018

    • Author(s)
      Abe Hiroto、Ebuchi Naoto、Ueno Hiromichi、Ishiyama Hiromu、Matsumura Yoshimasa
    • Journal Title

      Journal of Oceanography

      Volume: 75 Issue: 1 Pages: 37-50

    • DOI

      10.1007/s10872-018-0482-0

    • NAID

      40021804507

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of All-Weather SEA Surface Wind Speed Product from GCOM-W/AMSR2 Microwave Radiometer2018

    • Author(s)
      Ebuchi Naoto
    • Journal Title

      Proceedings of 2018 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2018)

      Volume: - Pages: 6663-6666

    • DOI

      10.1109/igarss.2018.8519042

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Latest Status of the AMSR Series2022

    • Author(s)
      Naoto Ebuchi, Misako Kachi, Rigen Shimada, Eri Yoshizawa, Hideyuki Fujii, Keiichi Ohara, Marehito Kasahara, Kazuya Inaoka, and Yasushi Kojima
    • Organizer
      International Ocean Vector Winds Science Team Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Overview of Ocean Observations by AMSR2 on GCOM-W and Development of AMSR3 on GOSAT-GW2022

    • Author(s)
      Naoto Ebuchi, Misako Kachi, Rigen Shimada, Eri Yoshizawa, Hideyuki Fujii, Keiichi Ohara, Marehito Kasahara, Kazuya Inaoka, and Yasushi Kojima
    • Organizer
      International Symosium on Remote Sensing 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Overview of Ocean Observations by AMSR2 and Development of AMSR32022

    • Author(s)
      Naoto Ebuchi, Misako Kachi, Rigen Shimada, Eri Yoshizawa, Hideyuki Fujii, Keiichi Ohara, Marehito Kasahara, Kazuya Inaoka, and Yasushi Kojima
    • Organizer
      The 25th AMS Conference on Satellite Meteorology, Oceanography, and Climatology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AMSR2による海洋観測と後継機AMSR3の開発2022

    • Author(s)
      江淵 直人・可知 美佐子・島田 利元・吉澤 枝里・藤井 秀幸・小原 慧一・笠原 希仁・稲岡 和也・小島 寧
    • Organizer
      海洋理工学会令和4年度春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 衛星データを利用した海況変動解析の研究(2022年度海洋理工学会顕功賞受賞記念講演)2022

    • Author(s)
      江淵 直人
    • Organizer
      海洋理工学会令和4年度秋季大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ベーリング海における海氷の多寡がアラスカでの陸上降雪, ユーコン川を経て海洋に与える潜在的影響2022

    • Author(s)
      阿部 泰人・米澤 知也・小林 健人・香川 智郎・大畑 茉滉・上野 洋路・平譯 享
    • Organizer
      2022年度日本海洋学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Evaluation of marine surface wind observed by AMSR2 on GCOM-W12022

    • Author(s)
      Ebuchi, N.
    • Organizer
      Joint PI Workshop of Global Environmental Observation Mission 2021
    • Related Report
      2021 Research-status Report
  • [Presentation] All-weather Sea Surface Wind Speed Product from AMSR2 for Extreme Wind and Heavy Rain Conditions and Present Status of AMSR32022

    • Author(s)
      Ebuchi, N.
    • Organizer
      Ocean Sciences Meeting 2022
    • Related Report
      2021 Research-status Report
  • [Presentation] 衛星マイクロ波センサーに関する基礎研究と海洋学への応用(2021年度日本海洋学会賞受賞記念講演)2021

    • Author(s)
      江淵 直人
    • Organizer
      2021年度日本海洋学会秋季大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Comparison of spatial distribution of high wind speed around typhoons derived from AMSR2 All-weather Sea Surface Wind Product with JMA best-track data2020

    • Author(s)
      Ebuchi, N.
    • Organizer
      IGARSS 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] アナディール湾における水塊の経年変動2020

    • Author(s)
      阿部 泰人,野村 大樹,平譯 享
    • Organizer
      2020年度日本海洋学会秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of all-weather sea surface wind speed product from GCOM-W/AMSR2.2019

    • Author(s)
      Ebuchi, N.
    • Organizer
      International Ocean Vector Winds Science Team Meeting 2019 (IOVWST 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Long-term observations of the global water cycle, air-sea interactions and polar environments by GCOM-W/AMSR2.2019

    • Author(s)
      Ebuchi, N., M. Kachi, H. Fujii, T. Maeda, N. Ono, M. Kasahara, H. Shimoda, and the AMSR2 Science Team
    • Organizer
      2019 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of all-weather sea surface wind speed product from GCOM-W/AMSR2 spaceborne microwave radiometer.2019

    • Author(s)
      Ebuchi, N.
    • Organizer
      American Meteorological Society 2019 Joint Satellite Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] AMSR シリーズで観測された海上風速データの長期安定性について.2019

    • Author(s)
      江淵直人
    • Organizer
      日本海洋学会2019年度秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 衛星搭載マイクロ波放射計AMSRシリーズで観測された海上風速の長期安定性について.2019

    • Author(s)
      江淵直人
    • Organizer
      2019年度海洋理工学会秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Evaluation of all-weather sea surface wind speed product from GCOM-W/AMSR2 microwave radiometer.2018

    • Author(s)
      Ebuchi, N.
    • Organizer
      2018 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Aquarius reveals eddy stirring after a heavy precipitation event in the subtropical North Pacific2018

    • Author(s)
      Abe, H., N. Ebuchi, H. Ueno, H. Ishiyama, and Y. Matsumura
    • Organizer
      North Pacific Marine Science Organization (PICES) Annual Meeting 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluation of all-weather sea surface wind speed product from GCOM-W/AMSR2 spaceborne microwave radiometer.2018

    • Author(s)
      Ebuchi, N.
    • Organizer
      International Symposium on Remote Sensing (ISRS) 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] GCOM-W/AMSR2 全天候海上風速データの精度評価2018

    • Author(s)
      江淵直人
    • Organizer
      日本海洋学会2018年度秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] GCOM-W/AMSR2 全天候海上風速データの精度評価(その2)2018

    • Author(s)
      江淵直人
    • Organizer
      平成30年度海洋理工学会秋季大会
    • Related Report
      2018 Research-status Report
  • [Book] リモートセンシング事典2022

    • Author(s)
      日本リモートセンシング学会編
    • Total Pages
      752
    • Publisher
      丸善出版
    • ISBN
      9784621307762
    • Related Report
      2022 Annual Research Report

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Published: 2018-04-23   Modified: 2023-12-25  

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