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Methodology and application of coupled data assimilation systems

Research Project

Project/Area Number 17H00728
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Statistical science
Research InstitutionThe Institute of Statistical Mathematics

Principal Investigator

Ueno Genta  統計数理研究所, モデリング研究系, 教授 (40370093)

Co-Investigator(Kenkyū-buntansha) 三好 由純  名古屋大学, 宇宙地球環境研究所, 教授 (10377781)
中野 慎也  統計数理研究所, モデリング研究系, 准教授 (40378576)
藤井 陽介  気象庁気象研究所, 全球大気海洋研究部, 主任研究官 (60343894)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥40,040,000 (Direct Cost: ¥30,800,000、Indirect Cost: ¥9,240,000)
Fiscal Year 2021: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2020: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2019: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2018: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2017: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Keywordsデータ同化 / 海洋 / 放射線帯 / 結合モデル / 磁気圏 / プラズマ / 大気海洋 / ジオスペース
Outline of Final Research Achievements

We compared atmosphere-ocean data assimilation systems based on a coupled model and non-coupled model, and examined conditions under which data assimilation to the coupled model provides better forecast. We developed a method to estimate the solar wind from the geomagnetic activity index and to estimate the magnetosphere and ionosphere by a magnetosphere-ionosphere model driven by the estimated solar wind. Data assimilation of high-energy electron observations by the "Arase" satellite in the radiation belt was performed. We developed a method for a high-dimensional 4D-Var data assimilation by repeating ensemble simulation and optimizing in a randomly selected subspace.

Academic Significance and Societal Importance of the Research Achievements

気象・気候予測の精度向上のため、大気海洋結合同化システムの開発が行われているが、従来の「非」結合システムに対し結合システムが実際に優位となるかどうかは明らかではなかった。本課題では海面水温変動の詳細の再現が結合同化システムの優位性を導くことを明らかにし、今後の精度向上には、海面水温変動の再現性改善を目指すべきことを示した点で、学術的、社会的意義がある。
放射線帯電子の高エネルギー電子変動の理解と予測は、宇宙天気研究の最重要課題の一つとされている。本課題によって放射線帯電子の物理過程を抽出することが可能となり、電子変動を作り出す物理過程の理解に貢献するとともに、宇宙天気予報の高精度化にも寄与する。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report

Research Products

(118 results)

All 2022 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (32 results) (of which Int'l Joint Research: 15 results,  Peer Reviewed: 31 results,  Open Access: 27 results) Presentation (84 results) (of which Int'l Joint Research: 47 results,  Invited: 15 results) Book (1 results)

  • [Int'l Joint Research] University of Colorado Boulder(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] ASTI: Data assimilation system for particle and heat transport in toroidal plasmas2022

    • Author(s)
      Morishita Y.、Murakami S.、Yokoyama M.、Ueno G.
    • Journal Title

      Computer Physics Communications

      Volume: 274 Pages: 108287-108287

    • DOI

      10.1016/j.cpc.2022.108287

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Echo state network model for analyzing solar-wind effects on the AU and AL indices2022

    • Author(s)
      Nakano Shin'ya、Kataoka Ryuho
    • Journal Title

      Annales Geophysicae

      Volume: 40 Pages: 11-22

    • DOI

      10.5194/angeo-40-11-2022

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Off‐Equatorial Pi2 Pulsations Inside and Outside the Plasmapause Observed by the Arase Satellite2022

    • Author(s)
      Teramoto M.、Miyoshi Y.、Matsuoka A.、Kasahara Y.、Kumamoto A.、Tsuchiya F.、Nos? M.、Imajo S.、Shoji M.、Nakamura S.、Kitahara M.、Shnohara I.
    • Journal Title

      Journal of Geophysical Research

      Volume: 127 Pages: 1-18

    • DOI

      10.1029/2021ja029677

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Relativistic Maxwellian mixture model2021

    • Author(s)
      Ueno Genta、Zenitani Seiji
    • Journal Title

      Physics of Plasmas

      Volume: 28 Pages: 122106-122106

    • DOI

      10.1063/5.0059126

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of Rapid Simulation Code for NBI Heating Analysis in LHD2021

    • Author(s)
      Morishita Yuya、Murakami Sadayoshi、Yokoyama Masayuki、Seki Ryosuke、Nuga Hideo、Osakabe Masaki、Ueno Genta
    • Journal Title

      Journal of Fusion Energy

      Volume: 41

    • DOI

      10.1007/s10894-021-00313-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EUV signals associated with O+ ions observed from ISS-IMAP/EUVI in the nightside ionosphere2021

    • Author(s)
      Nakano Shin’ya、Hozumi Yuta、Saito Akinori、Yoshikawa Ichiro、Yamazaki Atsushi、Yoshioka Kazuo、Murakami Go
    • Journal Title

      Earth, Planets and Space

      Volume: 73

    • DOI

      10.1186/s40623-021-01479-0

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Auroral zone over the last 3000 years2021

    • Author(s)
      Kataoka Ryuho、Nakano Shin’ya
    • Journal Title

      Journal of Space Weather and Space Climate

      Volume: 11 Pages: 46-46

    • DOI

      10.1051/swsc/2021030

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reconstructing Solar Wind Profiles Associated With Extreme Magnetic Storms: A Machine Learning Approach2021

    • Author(s)
      Kataoka Ryuho、Nakano Shin'ya
    • Journal Title

      Geophysical Research Letters

      Volume: 48

    • DOI

      10.1029/2021gl096275

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Statistical Analysis of Pc1 Wave Ducting Deduced From Swarm Satellites2021

    • Author(s)
      Kim Hyangpyo、Shiokawa Kazuo、Park Jaeheung、Miyoshi Yoshizumi、Stolle Claudia、Buchert Stephan
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126

    • DOI

      10.1029/2020ja029016

    • NAID

      120007169536

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Characteristics of EMIC Waves in the Magnetosphere Based on the Van Allen Probes and Arase Observations2021

    • Author(s)
      Jun Chae‐Woo、Miyoshi Yoshizumi、Kurita Satoshi、Yue Chao、Bortnik Jacob、Lyons Larry、Nakamura Satoko、Shoji Masafumi、Imajo Shun、Kletzing Craig、Kasahara Yoshiya、Kasaba Yasumasa、Matsuda Shoya、Tsuchiya Fuminori、Kumamoto Atsushi、Matsuoka Ayako、Shinohara Iku
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126

    • DOI

      10.1029/2020ja029001

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rocket Observation of Sub‐Relativistic Electrons in the Quiet Dayside Auroral Ionosphere2021

    • Author(s)
      Namekawa T.、Mitani T.、Asamura K.、Miyoshi Y.、Hosokawa K.、Ogawa Y.、Saito S.、Hori T.、Sugo S.、Kawashima O.、Kasahara S.、Nomura R.、Yagi N.、Fukizawa M.、Sakanoi T.、Saito Y.、Matsuoka A.、Shinohara I.、Fedorenko Y.、Nikitenko A.、Koehler C.
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126

    • DOI

      10.1029/2020ja028633

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characterization and Calibration of High‐Energy Electron Instruments Onboard the Arase Satellite2021

    • Author(s)
      Park I.、Miyoshi Y.、Mitani T.、Hori T.、Takashima T.、Kurita S.、Shinohara I.、Kasahara S.、Yokota S.、Keika K.、Claudepierre S. G.、Looper M. D.
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126

    • DOI

      10.1029/2021ja029110

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Arase Observation of Simultaneous Electron Scatterings by Upper‐Band and Lower‐Band Chorus Emissions2021

    • Author(s)
      Y. Kazama, Y. Miyoshi, H. Kojima, Y. Kasahara, S. Kasahara, H. Usui, B.‐J. Wang, S.‐Y. Wang, S. W. Y. Tam, T. F. Chang, K. Asamura, S. Matsuda, A. Kumamoto, F. Tsuchiya, Y. Kasaba, M. Shoji, A. Matsuoka, M. Teramoto, T. Takashima, I. Shinohara
    • Journal Title

      Geophysical Research Letters

      Volume: 48(14) Pages: 1-10

    • DOI

      10.1029/2021gl093708

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Field‐Aligned Electron Density Distribution of the Inner Magnetosphere Inferred From Coordinated Observations of Arase and Van Allen Probes2021

    • Author(s)
      Obana Yuki、Miyashita Yukinaga、Maruyama Naomi、Shinbori Atsuki、Nose Masahito、Shoji Masafumi、Kumamoto Atsushi、Tsuchiya Fuminori、Matsuda Shoya、Matsuoka Ayako、Kasahara Yoshiya、Miyoshi Yoshizumi、Shinohara Iku、Kurth William S.、Smith Charles W.、MacDowall Robert J.
    • Journal Title

      Journal of Geophysical Research

      Volume: 126

    • DOI

      10.1029/2020ja029073

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Periodicities and Colors of Pulsating Auroras: DSLR Camera Observations From the International Space Station2021

    • Author(s)
      Nanjo Sota、Hozumi Yuta、Hosokawa Keisuke、Kataoka Ryuho、Miyoshi Yoshizumi、Oyama Shin‐ichiro、Ozaki Mitsunori、Shiokawa Kazuo、Kurita Satoshi
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126

    • DOI

      10.1029/2021ja029564

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Study of an Equatorward Detachment of Auroral Arc From the Oval Using Ground‐Space Observations and the BATS‐R‐US-CIMI Model2021

    • Author(s)
      Yadav Sneha、Shiokawa K.、Oyama S.、et al.
    • Journal Title

      Journal of Geophysical Research: Space Physics

      Volume: 126

    • DOI

      10.1029/2020ja029080

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Improvements in tropical precipitation and sea surface air temperature fields in a coupled atmosphere?ocean data assimilation system2021

    • Author(s)
      Fujii Yosuke、Ishibashi Toshiyuki、Yasuda Tamaki、Takaya Yuhei、Kobayashi Chiaki、Ishikawa Ichiro
    • Journal Title

      Quarterly Journal of the Royal Meteorological Society

      Volume: 147 Pages: 1317-1343

    • DOI

      10.1002/qj.3973

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intraseasonal SST?precipitation relationship in a coupled reanalysis experiment using the MRI coupled atmosphere?ocean data assimilation system2021

    • Author(s)
      Kobayashi Chiaki、Fujii Yosuke、Ishikawa Ichiro
    • Journal Title

      Climate Dynamics

      Volume: 56 Pages: 2377-2388

    • DOI

      10.1007/s00382-020-05592-w

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of the Ensemble Kalman Smoother to Turbulent Transport Analysis in LHD Plasma2021

    • Author(s)
      MORISHITA Yuya、MURAKAMI Sadayoshi、YOKOYAMA Masayuki、UENO Genta
    • Journal Title

      Plasma and Fusion Research

      Volume: 16 Issue: 0 Pages: 2403016-2403016

    • DOI

      10.1585/pfr.16.2403016

    • NAID

      130007994318

    • ISSN
      1880-6821
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nonlinear Filtering Method Using a Switching Error Model for Outlier Contaminated Observations2020

    • Author(s)
      Nakabayashi Akio、Ueno Genta
    • Journal Title

      IEEE Transactions on Automatic Control

      Volume: - Pages: 1-1

    • DOI

      10.1109/tac.2019.2947649

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-Gaussian Probability Densities of Convection Initiation and Development Investigated Using a Particle Filter with a Storm-Scale Numerical Weather Prediction Model2020

    • Author(s)
      Kawabata Takuya、Ueno Genta
    • Journal Title

      Mon. Wea. Rev.

      Volume: 148 Pages: 3-20

    • DOI

      10.1175/mwr-d-18-0367.1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Data assimilation system based on integrated transport simulation of Large Helical Device plasma2020

    • Author(s)
      Morishita Yuya、Murakami Sadayoshi、Yokoyama Masayuki、Ueno Genta
    • Journal Title

      Nuclear Fusion

      Volume: 60 Pages: 056001-056001

    • DOI

      10.1088/1741-4326/ab7596

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preliminary results of soil moisture data assimilation into JMA Global Analysis2020

    • Author(s)
      Ochi, K.
    • Journal Title

      CAS/JSC WGNE Res. Activ. Atmos. Oceanic Modell.

      Volume: 50

    • Related Report
      2019 Annual Research Report
    • Open Access
  • [Journal Article] 粒子フィルタとデータ同化2019

    • Author(s)
      上野玄太
    • Journal Title

      統計数理

      Volume: 67 Pages: 241-253

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Observing System Evaluation Based on Ocean Data Assimilation and Prediction Systems: On-Going Challenges and a Future Vision for Designing and Supporting Ocean Observational Networks2019

    • Author(s)
      Fujii Yosuke, et al.
    • Journal Title

      Frontiers in Marine Science

      Volume: 6 Pages: 417-417

    • DOI

      10.3389/fmars.2019.00417

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Second Report of TPOS 20202019

    • Author(s)
      Kessler, W.S., et al.
    • Journal Title

      GOOS Report

      Volume: 234 Pages: 247-247

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Visualization of rapid electron precipitation via chorus element wave?particle interactions2019

    • Author(s)
      Ozaki M. et al.
    • Journal Title

      Nature Comm.

      Volume: 10 Pages: 1-9

    • DOI

      10.1038/s41467-018-07996-z

    • NAID

      120006550406

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adjoint-Based Observation Impact Estimation with Direct Verification Using Forward Calculation2018

    • Author(s)
      Ishibashi Toshiyuki
    • Journal Title

      Monthly Weather Review

      Volume: 146 Pages: 2837-2858

    • DOI

      10.1175/mwr-d-18-0037.1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Geospace exploration project ERG2018

    • Author(s)
      Miyoshi Y.、Shinohara I.、Takashima T.、Asamura K.、Higashio N.、Mitani T.、Kasahara S.、Yokota S.、Kazama Y.、Wang S.-Y.、Tam S. W. Y.、Ho P. T. P.、Kasahara Y.、Kasaba Y.、Yagitani S.、Matsuoka A.、Kojima H.、Katoh Y.、Shiokawa K.、Seki K.
    • Journal Title

      Earth, Planets and Space

      Volume: 70

    • DOI

      10.1186/s40623-018-0862-0

    • NAID

      120006829938

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The ERG Science Center2018

    • Author(s)
      Miyoshi Y.、Hori T.、Shoji M.、Teramoto M.、Chang T. F.、Segawa T.、Umemura N.、Matsuda S.、Kurita S.、Keika K.、Miyashita Y.、Seki K.、Tanaka Y.、Nishitani N.、Kasahara S.、Yokota S.、Matsuoka A.、Kasahara Y.、Asamura K.、Takashima T.、Shinohara I.
    • Journal Title

      Earth, Planets and Space

      Volume: 70

    • DOI

      10.1186/s40623-018-0867-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Direct measurements of two-way wave-particle energy transfer in a collisionless space plasma2018

    • Author(s)
      Kitamura N.、Kitahara M.、Shoji M.、Miyoshi Y.、Hasegawa H.、Nakamura S.、Katoh Y.、Saito Y.、Yokota S.、Gershman D. J.、Vinas A. F.、Giles B. L.、Moore T. E.、Paterson W. R.、Pollock C. J.、Russell C. T.、Strangeway R. J.、Fuselier S. A.、Burch J. L.
    • Journal Title

      Science

      Volume: 361 Pages: 1000-1003

    • DOI

      10.1126/science.aap8730

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Data Assimilation2017

    • Author(s)
      上野 玄太
    • Journal Title

      J. of SICE

      Volume: 56 Issue: 9 Pages: 656-661

    • DOI

      10.11499/sicejl.56.656

    • NAID

      130006083186

    • ISSN
      0453-4662, 1883-8170
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] 相対論的正規混合分布モデル:プラズマ粒子シミュレーションの解析から2022

    • Author(s)
      上野玄太
    • Organizer
      日本統計学会春季集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Four-Dimensional Variational (4DVAR) Global Ocean Data Assimilation System for Coupled Predictions in Japan Meteorological Agency (JMA)2022

    • Author(s)
      Fujii, Y., Y. Adachi, I. Ishikawa, T. Yoshida, S. Hirahara, Y. Kubo, and H. Sugimoto
    • Organizer
      Ocean Sciences Meeting 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Wave-Particle Interactions in Geospace2022

    • Author(s)
      I. Shinohara, S. Kurita, S. Matsuda, S. Saito, M. Shoji, S. Nakamura
    • Organizer
      物理学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 機械学習によるPi2地磁気脈動の検出とリアルタイムサブストーム警報システムの構築2021

    • Author(s)
      酒井悠輔, 能勢正仁, 市原寛, 上野玄太, 中野直人
    • Organizer
      Japan Geoscience Union Meeting 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 熱帯太平洋から始めるデータ同化2021

    • Author(s)
      上野玄太
    • Organizer
      情報とシステム2021 -不確実な未来へ ~地球規模課題に挑むデータサイエンス~-
    • Related Report
      2021 Annual Research Report
  • [Presentation] 相対論的Maxwell混合分布モデル2021

    • Author(s)
      上野玄太, 銭谷誠司
    • Organizer
      名古屋大学宇宙地球環境研究所 研究集会 「宇宙地球環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2021 Annual Research Report
  • [Presentation] Development of a coupled atmosphere-ocean data assimilation system in the Japan Meteorological Agency: evaluation and future plan2021

    • Author(s)
      Fujii, Y., C. Kobayashi, I. Ishikawa, Takaya, T. Ishibashi, and T. Yoshida
    • Organizer
      JpGU Meeting 2021: Virtual
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of a coupled atmosphere-ocean reanalysis using tropical Pacific mooring data2021

    • Author(s)
      Fujii, Y., C. Kobayashi, I. Ishikawa, and Y. Takaya
    • Organizer
      US CLIVAR Tropical Pacific Observing Needs Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of the coupled atmosphere-ocean reanalysis and future development of the coupled data assimilation system in JMA2021

    • Author(s)
      Fujii, Y., C. Kobayashi, I. Ishikawa, Y. Takaya, T. Ishibashi, and T. Yoshida
    • Organizer
      Joint ECMWF/OceanPredict workshop on Advances in Ocean Data Assimilation
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 気象研究所における結合同化システムの開発の成果と今後について2021

    • Author(s)
      藤井陽介, 石橋俊之, 小林ちあき, 石川一郎
    • Organizer
      名古屋大学宇宙地球環境研究所 研究集会 「宇宙地球環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2021 Annual Research Report
  • [Presentation] 気象庁季節予報用全球海洋データ同化システムの更新2021

    • Author(s)
      藤井陽介、足立恭将、石川一郎、吉田拓馬、平原翔二、久保勇太郎、杉本裕之
    • Organizer
      日本海洋学会2021年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] EUV signals associated with O+ ions observed from ISS-IMAP/EUVI in the nightside ionosphere2021

    • Author(s)
      S. Nakano, Y. Hozumi, A. Saito, I. Yoshikawa, A. Yamazaki, K. Yoshioka, G. Murakami
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An iterative ensemble-based variational method with ensemble generation in random subspaces2021

    • Author(s)
      S. Nakano
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Feasibility study of the global MHD simulation code toward reanalysis of the space weather phenomena2021

    • Author(s)
      Shigeru Fujita, Shin'ya Nakano, Akira Kadokura, Yoshimasa Tanaka, Ryuho Kataoka, Aoi Nakamizo, Yasubumi Kubota, Keisuke Hosokawa, Satoko Saita
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Auroral oval in the last 3000 years and future2021

    • Author(s)
      Ryuho Kataoka, Shin'ya Nakano
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 機械学習・数値シミュレーション・観測による宇宙プラズマ現象研究に向けた学習データの整備2021

    • Author(s)
      深沢 圭一郎, 木村 智樹, 徳永 旭将, 中野 慎也
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Modeling of the AL index time series with echo state network2021

    • Author(s)
      Shin'ya Nakano, Ryuho Kataoka
    • Organizer
      IAGA-IASPEI Joint Assembly 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A machine learning approach to fill the data gaps of the solar wind profiles causing large magnetic storms2021

    • Author(s)
      片岡龍峰, 中野慎也
    • Organizer
      第150回 地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Diagnosis of solar-wind effects on the AE indices based on an echo state network model2021

    • Author(s)
      中野慎也, 片岡龍峰
    • Organizer
      第150回 地球電磁気・地球惑星圏学会講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Feasibility study of the global MHD simulation code toward reanalysis of the space weather phenomena2021

    • Author(s)
      Shigeru Fujita, Shin'ya Nakano, Akira Kadokura, Yoshimasa Tanaka, Ryuho Kataoka, Aoi Nakamizo, Yasubumi Kubota, Keisuke Hosokawa, Satoko Saita
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A machine learning approach to fill the data gaps of the solar wind profiles causing large magnetic storms2021

    • Author(s)
      Ryuho Kataoka and Shin'ya Nakano
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Virtual sounding of solar-wind effects on the AE indices based on an echo state network model2021

    • Author(s)
      Shin'ya Nakano and Ryuho Kataoka
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 機械学習による太陽風データギャップ復元と磁気嵐駆動源の研究2021

    • Author(s)
      片岡 龍峰, 中野 慎也
    • Organizer
      名古屋大学宇宙地球環境研究所 研究集会「宇宙地球環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2021 Annual Research Report
  • [Presentation] Echo state networkによるオーロラ活動指数のモデリング2021

    • Author(s)
      中野 慎也, 片岡 龍峰
    • Organizer
      名古屋大学宇宙地球環境研究所 研究集会「宇宙地球環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2021 Annual Research Report
  • [Presentation] アンサンブルによる変分法データ同化とその拡張2021

    • Author(s)
      中野 慎也
    • Organizer
      固体地球科学データ同化/データ駆動型地球科学に関する研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Data assimilation of electron radiation belts using the Arase high energy electron data2021

    • Author(s)
      三好 由純、上野 玄太、齊藤 慎司、栗田 怜、堀 智昭、今城 峻、三谷 烈史、篠原 育、高島 健、東尾 奈々
    • Organizer
      Japan Geoscience Union Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multiple roles of plasma waves in the inner magnetosphere2021

    • Author(s)
      Y. Miyoshi, Y. Kasahara, H. Kojima, S. Matsuda, S. Kurita, S. Saito, Y. Katoh, A. Matsuooka, I. Shinohara
    • Organizer
      ICEAA-IEEE-APWC-USNC-URSI-PSM
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cross-energy coupling process via wave-particle interactions in Geospace observed by the Arase satellite2021

    • Author(s)
      Y. Miyoshi, I. Shinohara
    • Organizer
      General Incorporated Association
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 波動粒子相互作用による地球磁気圏MeV電子の加速2021

    • Author(s)
      三好由純、齊藤慎司、松本洋介
    • Organizer
      第38回 プラズマ・核融合学会 年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Evaluation of the lead-lag relationship between SST and precipitation in a coupled reanalysis using TAO-TRITON data2020

    • Author(s)
      Fujii, Y., C. Kobayashi, I. Ishikawa, Y. Takaya, and T. Ishibashi
    • Organizer
      2020 AGU Fall Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of ocean observation systems on ocean analyses and subseasonal forecasts in the Indo-Pacific region2020

    • Author(s)
      Subramanian, A., Y. Fujii, Y. Takaya, et al.
    • Organizer
      2020 AGU Fall Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhanced correlations between SST and precipitation in the weather time scale represented by a coupled atmosphere-ocean data assimilation system2020

    • Author(s)
      Fujii, Y., C. Kobayashi, I. Ishikawa, and Y. Takaya
    • Organizer
      日本地球惑星科学連合2020年大会
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Adaptive Estimation of the Observation-error Covariance and its Application to Particle Filtering2019

    • Author(s)
      Ueno, G.
    • Organizer
      AOGS2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bayesian estimation of the observation-error covariance and its application to particle filtering2019

    • Author(s)
      Ueno, G.
    • Organizer
      High Dimensional and Bayesian Inference toward Quantifying Real-World Uncertainties
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Data assimilation of electron radiation belts2019

    • Author(s)
      1.Miyoshi, Y., Ueno, G., Mitani, T., Takashima, T., Higashio, N., Hori, T., Kurita, S., Teramoto, M. and Shinohara, I.
    • Organizer
      IRENE Space Radiation Modeling and Data Analysis Workshop 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] What is the source of chaos in MCS?2019

    • Author(s)
      Kawabata, T. and Ueno, G.
    • Organizer
      EMS Annual Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 数値予報モデルと粒子フィルタ2019

    • Author(s)
      上野玄太
    • Organizer
      統数研-東北大ワークショップ2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] データ同化シミュレーションによる物理予測の高度化2019

    • Author(s)
      上野玄太
    • Organizer
      第36回プラズマ・核融合学会年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ヒストグラムモデルの情報量規準2019

    • Author(s)
      上野玄太
    • Organizer
      名古屋大学宇宙地球環境研究所 研究集会 「宇宙地球環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2019 Annual Research Report
  • [Presentation] ヒストグラムモデルの情報量規準2019

    • Author(s)
      上野玄太
    • Organizer
      統計数理研究所公募型共同利用研究集会 データサイエンスの新展開:応用と数理
    • Related Report
      2019 Annual Research Report
  • [Presentation] Developing the next-generation operational global ocean data assimilation system at JMA2019

    • Author(s)
      Ishizaki, S., H. Sugimoto, Y. Fujii, I. Ishikawa, S. Hirahara, Y. Adachi, Y. Kubo, T. Komori
    • Organizer
      OcenPredict'19
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coupled weather and subseasonal prediction requirements2019

    • Author(s)
      Takaya, Y, and H. Hendon
    • Organizer
      6th TPOS2020 SC Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 結合同化システムの短期再解析実験における降水量とSST、海面フラックスとの関係2019

    • Author(s)
      小林ちあき、石川一郎、藤井陽介
    • Organizer
      日本気象学会2019年度秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Preliminary results of introducing soil moisture data assimilation to the JMA Global Ensemble Prediction System2019

    • Author(s)
      Ochi, K
    • Organizer
      ECMWF Annual Seminar 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tropical Pacific Observing System 2020 (TPOS2020) Project and Relevant Ocean Observing System Evaluation Activities2019

    • Author(s)
      Fujii, Y
    • Organizer
      WMO scoping workshop on future activities to assess impact of Various observing systems on earth system prediction
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Observing System Evaluation Based on Ocean Data Assimilation and Prediction Systems: On-going Challenges and a Future Vision for Designing and Supporting Ocean2019

    • Author(s)
      Fujii, Y, et al.
    • Organizer
      OceanObs'19
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Toward better coordination between observational and forecasting communities through OS-Eval activities2019

    • Author(s)
      Fujii, Y.
    • Organizer
      OceanObs'19
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Use of satellite Sea Surface Height (SSH) and Sea Surface Temperature (SST) data in operational 4DVAR Ocean Data Assimilation Systems in JMA2019

    • Author(s)
      Fujii, Y., N. Usui, N. Hirose, Y. Takatsuki, T. Kuragano, and T. Sakurai
    • Organizer
      1st International Operational Satellite Oceanography Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of weakly coupled atmosphere-ocean data assimilation system and the evaluation of the coupled reanalysis in JMA/MRI2019

    • Author(s)
      Fujii, Y., C. Kobayashi, T. Ishibashi, and Y. Takaya
    • Organizer
      JpGU meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Numerical Weather Prediction Experiments using a Coupled Atmosphere-Ocean Data Assimilation System in JMA/MRI (3)2019

    • Author(s)
      Ishibasi, T., T. Iriguchi, Y. Fujii, T. Yasuda, Y. Takaya, N. Saito, T. Onog
    • Organizer
      JpGU meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of weakly coupled atmosphere-ocean data assimilation system and the evaluation of the coupled reanalysis in JMA/MRI2019

    • Author(s)
      Fujii, Y., C. Kobayashi, T. Ishibashi, and Y. Takaya
    • Organizer
      OceanPredict'19
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 準ニュートン法の海洋データ同化・予測システムでの利用について2019

    • Author(s)
      藤井陽介
    • Organizer
      名古屋大統数研共同ワークショップ「宇宙地球環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2019 Annual Research Report
  • [Presentation] The current development status of next seasonal ensemble prediction system (JMA/MRI-CPS3)2019

    • Author(s)
      Kubo, Y., Y. Adachi, J. Chiba, Y. Fujii, S. Hirahara, I. Ishikawa, S. Ishizaki, T. Komori, H. Sugimoto
    • Organizer
      99th AMS Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of a global ocean 4DVAR system for coupled predictions and a plan of applying it for coupled data assimilation2019

    • Author(s)
      Fujii, Y., I. Ishikawa, H. Sugimoto, T. Toyoda, S. Urakawa, T. Komori, Y. Adachi
    • Organizer
      7th International Symposium on Data Assimilation (ISDA)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 全球4次元変分法海洋同化システムの開発と結合同化への利用2019

    • Author(s)
      藤井陽介、石川一郎、杉本裕之、豊田隆寛、浦川昇吾、小森拓也、足立恭将
    • Organizer
      統計数理研究所共同研究集会「宇宙地球環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2018 Annual Research Report
  • [Presentation] 大気海洋結合データ同化2018

    • Author(s)
      石橋俊之
    • Organizer
      第2回 理研・気象庁データ同化研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 結合同化システムの短期再解析実験における降水量-SST関係2018

    • Author(s)
      小林ちあき、藤井陽介
    • Organizer
      気象学会春季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Precipitation-SST relationship in a reanalysis dataset by a coupled atmosphere-ocean data assimilation system of JMA/MRI2018

    • Author(s)
      Chiaki Kobayashi , Yosuke Fujii
    • Organizer
      JpGU2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 次期季節予測システム(JMA/MRI-CPS3)の開発状況について2018

    • Author(s)
      久保勇太郎、足立恭将、石川一郎、石崎士郎、小森拓也、杉本裕之、千葉丈太郎、平原翔二、藤井陽介
    • Organizer
      第22回海洋データ同化夏の学校
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of a global ocean and coupled data assimilation for subseasonal to seasonal forecasts in Japan Meteorological Agency2018

    • Author(s)
      Fujii, Y., T. Toyoda, S. Urakawa, H. Sugimoto, I. Ishikawa, Y. Takaya, C. Kobayashi, T. Ishibashi, and T. Iriguchi
    • Organizer
      International Conferences on subseasonal to decadal prediction
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent progress in ocean observing system evaluation in JMA and GODAE OceanView2018

    • Author(s)
      Fujii, Y.
    • Organizer
      5th Steering Committee of TPOS2020
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Coupled weather and S2S predictions2018

    • Author(s)
      Takaya, Y.
    • Organizer
      5th Steering Committee of TPOS2020
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 全球結合予測のための海洋データ同化システムの開発2018

    • Author(s)
      藤井陽介、石川一郎、豊田隆寛、浦川昇吾、杉本裕之
    • Organizer
      異常気象研究会・第5回観測システム・予測可能性研究連絡会「季節予測システムの進展と異常気象の要因分析」
    • Related Report
      2018 Annual Research Report
  • [Presentation] 結合同化システムの短期再解析実験における降水量―SST関係2018

    • Author(s)
      小林ちあき、藤井陽介、石川一郎
    • Organizer
      異常気象研究会・第5回観測システム・予測可能性研究連絡会「季節予測システムの進展と異常気象の要因分析」
    • Related Report
      2018 Annual Research Report
  • [Presentation] Flux evolutions of relativistic electrons of the outer radiation belt as seen from the first year observation of Arase2018

    • Author(s)
      Yoshizumi Miyoshi他
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Flux evolution of relativistic electrons of the outer radiation belt associated with coronal hole streams: Arase observations2018

    • Author(s)
      Yoshizumi Miyoshi他
    • Organizer
      米国地球物理学連合総会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] アンサンブル予報と確率分布推定2018

    • Author(s)
      上野玄太
    • Organizer
      第81回CAVE研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Bayesian estimation of the observation error covariance matrix in ensemble-based filters2018

    • Author(s)
      Ueno, G.
    • Organizer
      6th International Symposium on Data Assimilation (2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Subseasonal prediction experiment using an atmosphere-ocean coupled data assimilation system2018

    • Author(s)
      Takaya, Y., Y. Fujii, T. Ishibashi, C. Kobayashi
    • Organizer
      2018 Ocean Sciences Meeting
    • Related Report
      2017 Annual Research Report
  • [Presentation] Influence of tropical Atlantic SST on Asian monsoon in the summer of 20102018

    • Author(s)
      Saito, N., Y. Takaya, Y. Imada, and Y. Takatsuki
    • Organizer
      2018 Ocean Sciences Meeting
    • Related Report
      2017 Annual Research Report
  • [Presentation] Ocean data assimilation systems in JMA and their representation of SST and sea ice fields, 2018-01-23 Workshop on observations and analysis of sea-surface temperature and sea ice for NWP and climate applications2018

    • Author(s)
      Fujii, Y., T. Toyoda, N. Usui, N. Hirose, Y. Takaya, C. Kobayashi, N. Saito, T. Ishibashi, T. Iriguchi, M. Nosaka, S. Hirahara, T. Komori ,and Y. Adachi
    • Organizer
      The European Centre for Medium-Range Weather Forecasts (ECMWF)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] データ同化システム構築の次の方法2017

    • Author(s)
      上野玄太
    • Organizer
      SICE制御部門データ科学とリンクした次世代の適応学習制御調査研究会第1回講義会「データ同化とデータ駆動型の科学」
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Data assimilation and optimal error covariance2017

    • Author(s)
      Ueno, G.
    • Organizer
      2nd ISM-ZIB-IMI MODAL Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 気象予測の舞台裏:シミュレーションとアンサンブル2017

    • Author(s)
      上野玄太
    • Organizer
      大学共同利用機関シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] 結合モデルへのデータ同化2017

    • Author(s)
      上野玄太
    • Organizer
      名古屋大学宇宙地球環境研究所研究集会「宇宙環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2017 Annual Research Report
  • [Presentation] Evaluation of a Coupled Atmosphere-Ocean Data Assimilation System Reanalysis in JMA/MRI2017

    • Author(s)
      Fujii, Y., C. Kobayashi, T. Ishibashi, Y. Takaya, and Y. Takeuchi
    • Organizer
      5th International Conference on Reanalysis (ICR5)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GODAE Ocean View Activities in JMA (and Japan)2017

    • Author(s)
      Fujii, Y., N. Usui, T. Toyoda, N. Hirose, and H. Igarashi
    • Organizer
      8th Annual meeting of the GODAE Ocean View Science Team
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coupled Atmosphere-Ocean Data Assimilation (CDA) System Reanalysis in JMA/MRI2017

    • Author(s)
      Fujii, Y., T. Ishibashi, Y. Takaya, and C. Kobayashi
    • Organizer
      16th CAS-TWAS-WMO Forum Symposium on Advance in Seasonal to Decadal Prediction
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 気象庁全球海洋データ同化システム2017

    • Author(s)
      杉本裕之
    • Organizer
      第21回データ同化夏の学校
    • Related Report
      2017 Annual Research Report
  • [Presentation] 気象庁全球数値予報システムを使ったデータ同化研究2017

    • Author(s)
      石橋俊之
    • Organizer
      第21回データ同化夏の学校
    • Related Report
      2017 Annual Research Report
  • [Presentation] 全球大気(及び海洋)解析のためのデータ同化研究2017

    • Author(s)
      石橋俊之
    • Organizer
      研究集会「宇宙環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2017 Annual Research Report
  • [Presentation] 気象研究所における大気海洋結合同化システムの開発と再解析実験2017

    • Author(s)
      藤井陽介, 石橋俊之、小林ちあき、高谷祐平、入口武史、豊田隆寛、斉藤直彬、杉本裕之
    • Organizer
      研究集会「宇宙環境の理解に向けての統計数理的アプローチ」
    • Related Report
      2017 Annual Research Report
  • [Presentation] Numerical Weather Prediction Experiments using a Coupled Atmosphere-Ocean Data Assimilation System in JMA/MRI2017

    • Author(s)
      Toshiyuki Ishibashi, Takeshi Iriguchi, Yosuke Fujii, Tamaki Yausda, Yuhei Takaya, Naoaki Saito, Yoshiaki Takeuchi
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 気象研究所大気海洋結合同化システム(MRI-CDA1)の数値天気予報システムとしての性質2017

    • Author(s)
      石橋俊之
    • Organizer
      日本気象学会2017年度春季大会
    • Related Report
      2017 Annual Research Report
  • [Book] 人工知能学大事典2017

    • Author(s)
      人工知能学会
    • Total Pages
      1600
    • Publisher
      共立出版
    • ISBN
      9784320124202
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2023-01-30  

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