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Study on improving efficiency of the tropical Pacific observing system using unstable perturbation and property of spatial-temporal variation

Research Project

Project/Area Number 15H03727
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionJapan, Meteorological Research Institute

Principal Investigator

Fujii Yosuke  気象庁気象研究所, 海洋・地球化学研究部, 主任研究官 (60343894)

Co-Investigator(Kenkyū-buntansha) 細田 滋毅  国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, グループリーダー代理 (60399582)
Research Collaborator MASUDA Shuhei  
ANDO Kentaro  
TAKATSUKI Yasushi  
HIROSE Nariaki  
KURAGANO Tsurane  
NAKANO Toshiya  
XUE Yan  
TANI Masanobu  
BALMASEDA Magdalena  
MURAKAMI Kiyoshi  
REMY Elisabeth  
MAEDA SHUHEI  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Keywordsアルゴフロート / TAO/TRITON / データ同化 / 観測システム実験 / 熱帯太平洋観測システム / 海洋再解析相互比較 / GODAE OceanView / 特異ベクトル法 / GODAE Ocean View / 疑似アレイ / TRITONブイ / 観測システム評価 / 海洋解析相互比較
Outline of Final Research Achievements

This study evaluates impacts of ocean observation data on ocean data assimilation systems in order to contribute to maintenance and improvement of the ocean observation network constituted of Argo floats (automatic profiling floats), ocean observing buoy arrays, etc. We also developed a scheme for monitoring ocean observation impacts in real time from the spread of oceanic temperature distributions analyzed by international ocean institutes, and promoted an international activity for integrating results of ocean system evaluation researches in order to provide reliable information which do not depend on numerical models, etc.

Academic Significance and Societal Importance of the Research Achievements

本研究では、海洋および気候のモニタリングや予測に対する海洋観測データの必要性を科学的な手法に基づいて評価し、今後、海洋観測網を維持、発展させていくことの重要性や意義を明らかにした。また国外機関との協力により、新たな観測プラットフォームの稼働や、観測機器の故障など海洋観測網に急激な変化が生じた時、その海洋・気候のモニタリング・予測に対する影響を常時監視できる仕組みを構築し、同分野での国際協力促進にも大きく貢献した。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (59 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (16 results) Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 5 results,  Acknowledgement Compliant: 5 results) Presentation (34 results) (of which Int'l Joint Research: 27 results,  Invited: 13 results)

  • [Int'l Joint Research] Mercator Ocean/Collecte Localisation Satellites(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Met Office/ECMWF(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] NOAA/NCEP/NASA/JPL/University of Miami(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Environment Canada(カナダ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Bureau of Meteorology/CSIRO(オーストラリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Mercator Ocean/Collecte Localisation Satellites(フランス)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Met Office/ECMWF(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of Miami/NOAA/NCEP/NASA/JPL(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Environment Canada(カナダ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] KIOST(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] 海洋大気庁環境予測センター(NOAA/NCEP)/航空宇宙局ジェット推進研究所(NASA/JPL)/スクリプス海洋研究所(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] ヨーロッパ中期予報センター(ECMWF)/イギリス気象局(英国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Mercator-Ocean(フランス)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] オーストラリア気象局/英連邦科学産業研究機構(CSIRO)(オーストラリア)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] カナダ気象局(カナダ)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Deep-float salinity data synthesis for deep ocean state estimation: method and impact2018

    • Author(s)
      Masuda Shuhei、Osafune Satoshi、Hemmi Tadashi
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 5 Issue: 1 Pages: 1-8

    • DOI

      10.1186/s40645-018-0247-9

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fifteen years progress of the TRITON array in the Western Pacific and Eastern Indian Oceans2017

    • Author(s)
      Ando, K., Y. Kuroda, Y. Fujii, T. Fukuda, T. Hasegawa, T. Horii, Y. Ishihara, Y. Kashino, Y. Masumoto, K. Mizuno, M. Nagura, and I. Ueki
    • Journal Title

      Journal of Oceanography

      Volume: In press Issue: 4 Pages: 403-426

    • DOI

      10.1007/s10872-017-0414-4

    • NAID

      40021269025

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Real-time Ocean Reanalyses Intercomparison Project in the Context of Tropical Pacific Observing System and ENSO Monitoring2017

    • Author(s)
      Xue, Y., C. Wen, A. Kumar, M. Balmaseda, Y. Fujii, O. Alves, M. Martin, X. Yang, G. Vernieres, C. Desportes, T. Lee, L. Ascione, R. Gudgel, and I Ishikawa
    • Journal Title

      Climate Dynamics

      Volume: 印刷中 Issue: 11-12 Pages: 3647-3672

    • DOI

      10.1007/s00382-017-3535-y

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 日本の海洋データ同化研究:20年間の功績と今後の展望2017

    • Author(s)
      藤井陽介, 蒲地政文, 広瀬直毅, 望月崇, 瀬藤聡, 美山透, 広瀬成章, 長船哲史, 韓修妍, 五十嵐弘道, 宮澤 泰正, 豊田隆寛, 干場康博, 増田周平, 石川洋一, 碓氷典久, 黒田寛, 高山勝巳
    • Journal Title

      海の研究

      Volume: 26 Pages: 15-43

    • NAID

      130007485454

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluating the impacts of the tropical Pacific observing system on the ocean analysis fields in the global ocean data assimilation system for operational seasonal forecasts in JMA.2015

    • Author(s)
      Fujii Y, Ogawa K, Brassington GB, Ando K, Yasuda T, Kuragano T
    • Journal Title

      Journal of Operational Oceanography

      Volume: 印刷中 Issue: 1 Pages: 25-39

    • DOI

      10.1080/1755876x.2015.1014640

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Assessing the impact of observations on ocean forecasts and reanalyses: Part 1, Global studies.2015

    • Author(s)
      Oke PR, Larnicol G, Fujii Y, Smith GC, Lea DJ, Guinehut S, Remy E, Balmaseda MA, Rykova T, Surcel-Colan D, Martin MJ, Sellar AA, Mulet S, Turpin V
    • Journal Title

      Journal of Operational Oceanography

      Volume: 印刷中 Issue: sup1 Pages: s49-s62

    • DOI

      10.1080/1755876x.2015.1022067

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Evaluation of the Tropical Pacific Observing System from the Ocean Data Assimilation Perspective2015

    • Author(s)
      Fujii Y, Cummings J, Xue Y, Schiller A, Lee T, Balmaseda MA, Remy E, Masuda S, Alves O, Brassington G, Cornuelle B, Martin M, Oke P, Smith G, Yang X
    • Journal Title

      Quarterly Journal of the Royal Meteorological Society

      Volume: 印刷中 Issue: 692 Pages: 2481-2496

    • DOI

      10.1002/qj.2579

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Evaluation of the Argo network using statistical space-time scales derived from satellite altimetry data2015

    • Author(s)
      T. Kuragano, Y. Fujii, and M. Kamachi
    • Journal Title

      Journal of Geophysical Research, Ocean

      Volume: 120 Issue: 6 Pages: 4534-4551

    • DOI

      10.1002/2015jc010730

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Using models to design and evaluate ocean observing systems2015

    • Author(s)
      P. R. Oke, Y. Fujii, and T. Rykova
    • Journal Title

      CLIVAR EXCHANGE

      Volume: 67 Pages: 46-49

    • Related Report
      2015 Annual Research Report
    • Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Observing System Evaluation Studies and OceanPredict2019

    • Author(s)
      Fujii, Y.,
    • Organizer
      10th CLIVAR Global Synthesis and Observation Panel Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 10-Year Effort Evaluating the Tropical Pacific Observing Systems using Ocean Data Assimilation and Prediction Systems2019

    • Author(s)
      Fujii, Y., Y. Xue, F. Gasparin, and O. Alves
    • Organizer
      OceanPredict'19
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Activity of CLIVAR-GSOP and its contribution to the GODAE OceanView community2019

    • Author(s)
      Fujii, Y., A. Storto, and S. R. Jayne
    • Organizer
      OceanPredict'19
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Contribution of the GODAE OceanView Observing System Evaluation Task Team to OceanObs’192019

    • Author(s)
      Fujii, Y,
    • Organizer
      OceanPredict'19
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coupled Prediction and data assimilation in JMA and a brief introduction of GODAE OceanView Observing System Evaluation Task Team (OSEval-TT)2018

    • Author(s)
      Fujii, Y., Y. Takaya, T. Komori, Y. Adachi, C. Kobayashi, T. Ishibashi, and E. Remy
    • Organizer
      Bridging Sustained Observations & Data Assimilation for TPOS 2020
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial and temporal variability of temperature and salinity in the global ocean from Argo float data2018

    • Author(s)
      Hosoda, S and K.Sato
    • Organizer
      JpGU meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Argo フロートの空間充足率推移と課題2018

    • Author(s)
      細田滋毅, 増田周平, 須賀利雄
    • Organizer
      2018年海洋学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Evaluation of the global Argo array based on ocean data assimilation and prediction systems2018

    • Author(s)
      Fujii, Y., N. Usui, T. Kuragano, N. Hirose, T. Toyoda, S. Hosoda, E. Remy, and Y. Xue
    • Organizer
      6th International Argo Science Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Deep ocean state estimation with new float data2018

    • Author(s)
      Masuda, S., S. Osafune, T. Hemmi, S. Hosoda, and T. Suga
    • Organizer
      6th International Argo Science Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Global gridded temperature and salinity mappings and their applications using a large amount of Argo profiling data2018

    • Author(s)
      Hosoda,S., S.Masuda, and T. Suga
    • Organizer
      6th International Argo Science Workshop
    • 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] 季節予報の展望2018

    • Author(s)
      前田修平
    • 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] Ocean data assimilation systems in JMA and their representation of SST and sea ice fields, 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
      Workshop on observations and analysis of sea-surface temperature and sea ice for NWP and climate applications
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Global distribution of decorrelation length, signal to noise ratio and variability of temperature, salinity and density from Core Argo2018

    • Author(s)
      S. Hosoda
    • Organizer
      2018 Ocean Science Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis error estimation in a 4-dimensional variational ocean data assimilation system of the western North Pacific using a quasi-Newton method2017

    • Author(s)
      Fujii, Y., and Y. Niwa
    • Organizer
      JpGU meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial and temporal variability of temperature and salinity in the upper layer ocean using the global Argo array2017

    • Author(s)
      Hosoda, S., and K. Sato
    • Organizer
      IAPSO
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] データ同化の現状とArgo2017

    • Author(s)
      碓氷典久, 藤井陽介, 倉賀野連, 高槻靖, 豊田隆寛, 広瀬成章
    • Organizer
      日本海洋学会2017年度秋季大会シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] フロート技術・データ管理の概要と現状2017

    • Author(s)
      細田滋毅
    • Organizer
      日本海洋学会2017年度秋季大会シンポジウム
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Tropical Pacific Observing System 2020 project and the connections to the Ocean Data Assimilation Community2017

    • Author(s)
      Fujii, Y., and Arun Kumar
    • Organizer
      GODAE OceanView Joint DA-TT & OSEval-TT Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent Development of Ocean Data Assimilation Systems and Recent Observing System Evaluation Studies in JMA/MRI2017

    • Author(s)
      Fujii, Y., N. Usui, N. Hirose, T. Toyoda, and T. Kuragano
    • Organizer
      GODAE OceanView Joint DA-TT & OSEval-TT Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Influence of the Deep NINJA float data on a deep ocean state estimation2017

    • Author(s)
      Masuda, S., S. Osafune, T. Hemmi, N. Sugiura, and T. Doi
    • Organizer
      GODAE OceanView Joint DA-TT & OSEval-TT Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Observing System Evaluation Task Team. Current Status and Overview2017

    • Author(s)
      Fujii, Y., and Elisabeth Remy
    • Organizer
      8th Annual meeting of the GODAE Ocean View Science Team
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [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 / Invited
  • [Presentation] Introduction of CLIVAR-GSOP2017

    • Author(s)
      Fujii, Y., M. Balmaseda, C. Domingues, T. Lee, K. Schuckmann, A. Storto, and Y. Xue
    • Organizer
      8th Annual meeting of the GODAE Ocean View Science Team
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of a Coupled Atmosphere-Ocean Data Assimilation System in JMA/MRI and a Reanalysis Experiment2017

    • Author(s)
      Fujii, Y., T. Ishibashi, T. Iriguchi, N. Saito, Y. Takaya, Y. Takeuchi, and T. Yasuda
    • Organizer
      RIKEN International Symposium on Data Assimilation / The 7th Japanese Data Assimilation Workshop
    • Place of Presentation
      理化学研究所計算科学研究機構(兵庫県神戸市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of the North Pacific meridional overturning circulation using ocean data assimilation techniques2017

    • Author(s)
      Fujii, Y., N. Usui, N. Hirose, H. Mitsudera, T. Nakamura, H. Nishigaki, T. Miyama, S. Ito, and T. Wagawa
    • Organizer
      第32回北方圏国際シンポジウム
    • Place of Presentation
      紋別市文化会館(北海道紋別市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ENSO予測の進展と海洋データ同化2016

    • Author(s)
      藤井陽介
    • Organizer
      日本海洋学会2016年度春季大会シンポジウム「海洋データ同化20年の歩みと今後の展望」
    • Place of Presentation
      東京大学本郷キャンパス(東京都文京区)
    • Year and Date
      2016-03-18
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Development of a Coupled Atmosphere-Ocean Data Assimilation System in JMA/MRI2016

    • Author(s)
      Fujii, Y., T. Ishibashi, T. Iriguchi, T. Yasuda, N. Saito, Y. Takaya, and Y. Takeuchi
    • Organizer
      Internal Workshop on Coupled Data Assimilation
    • Place of Presentation
      フランス気象局国際会議センター(フランス・ツールズ市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GSOP Activities related to Ocean Reanalysis Intercomparison and Observing System Assessments2016

    • Author(s)
      Fujii, Y.
    • Organizer
      9th Session of CLIVAR Global Synthesis and Observation Panel
    • Place of Presentation
      Hyatt Regency Qingdao(中国青島市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A real-Time Ocean Reanalyses Intercomparison Project for Quantifying The Impacts of Tropical Pacific Observing Systems on Constraining Ocean Reanalyses2016

    • Author(s)
      Xue, Y., C. Wen, A. Kumar, M. Balmaseda, Y. Fujii, O. Alves, M. Martin, X. Yang, G. Vernieres, C. Desportes, T. Lee, L. Ascione, R. Gudgel, and I Ishikawa
    • Organizer
      CLIVAR Open Science Conference
    • Place of Presentation
      Hyatt Regency Qingdao(中国青島市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Real-Time Ocean Reanalysis Intercomparison Project2016

    • Author(s)
      Yan Xue, Caihong Wen, Yosuke Fujii, Ichiro Ishikawa, Arun Kumar, Magdalena Balmaseda, Gaba Vecchi, Guillaume Vernieres, Oscar Alves, Matthew Martin, Charles Desportes, Tong Lee, David Legler, and David DeWitt
    • Organizer
      日本海洋学会2016年度秋季大会
    • Place of Presentation
      鹿児島大学郡元キャンパス(鹿児島県鹿児島市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] データ同化での感度解析とOSEの例2016

    • Author(s)
      藤井陽介, 碓氷典久, 小川浩司, 広瀬成章, 安藤健太郎, 蒲地政文
    • Organizer
      第3回JAMSTEC/CEISTセミナー
    • Place of Presentation
      JAMSTEC横浜研究所(神奈川県横浜市)
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Recent Update of Operational Ocean DA systems in JMA. 6th Annual Meeting of GODAE OceanView Science Team2015

    • Author(s)
      T. Kuragano, Y. Fujii, N. Usui, T. Toyoda, Y. Takaya, and M. Kamachi
    • Organizer
      6th Annual Meeting of GODAE OceanView Science Team
    • Place of Presentation
      Q-Station Hotel (Sydney, Australia)
    • Year and Date
      2015-11-02
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simple OSE of Argo using space-time scales statistically derived from altimeter data2015

    • Author(s)
      T. Kuragano, Y. Fujii and M. Kamachi
    • Organizer
      2015 OSTST meeting
    • Place of Presentation
      HYATT REGENCY Reston (Reston, VA, USA)
    • Year and Date
      2015-10-20
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2022-08-26  

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