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Development of Data Assimilation System of Old Weather Data

Research Project

Project/Area Number 15K13566
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionThe University of Tokyo

Principal Investigator

Yoshimura Kei  東京大学, 生産技術研究所, 准教授 (50376638)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords古天気 / データ同化 / 大気再解析 / 古気候 / 社会変動 / 気候モデル / 古日記 / 文理融合 / アンサンブル / 大気環境場 / 雲量
Outline of Final Research Achievements

A data assimilation system of old weather information has been developed. It was based on the preexisted water isotope data assimilation system. A set of numerical experiments with 18 synthesized weather observatories was conducted. The observation impacts in total cloud cover, surface pressure, air temperature, wind speed, humidity distribution, and precipitation were evaluated. As results, there were "good" observation impacts over most of Japan, in most of the variables. This project proved that the new method for old weather assimilation is indeed effective and that there will be possibility to extend the current longest Atmospheric Reanalysis product.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (24 results)

All 2017 2016 2015

All Journal Article (12 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 12 results,  Open Access: 4 results,  Acknowledgement Compliant: 3 results) Presentation (11 results) (of which Int'l Joint Research: 8 results,  Invited: 2 results) Funded Workshop (1 results)

  • [Journal Article] Development and evaluation of a system of proxy data assimilation for paleoclimate reconstruction2017

    • Author(s)
      Okazaki, A. and K. Yoshimura
    • Journal Title

      Clim. Past

      Volume: -

    • DOI

      10.5194/cp-2016-12

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Revisiting the contribution of transpiration to global terrestrial evapotranspiration2017

    • Author(s)
      Wei, Z., K. Yoshimura, L. Wang, D. Miralles, S. Jasechko, X. Lee
    • Journal Title

      Geophys. Res. Let.

      Volume: - Issue: 6 Pages: 2792-2801

    • DOI

      10.1002/2016gl072235

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] An estimation of water origins in the vicinity of a tropical cyclone’s center and associated dynamic processes2017

    • Author(s)
      Takakura, T., R. Kawamura, T. Kawano, K. Ichiyanagi, M. Tanoue, and K. Yoshimura
    • Journal Title

      Climate Dynamics

      Volume: - Issue: 1-2 Pages: 555-569

    • DOI

      10.1007/s00382-017-3626-9

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Sensitivity evaluation of spectral nudging schemes in historical dynamical downscaling for South Asia2017

    • Author(s)
      Ramzan, M., S. Ham, M. Amjad, E.-C. Chang and K. Yoshimura
    • Journal Title

      Advances in Meteorology

      Volume: -

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evaluating the skills of isotope-enabled general circulation models against in situ atmospheric water vapor isotope observations2017

    • Author(s)
      Steen-Larsen, H.C., C. Risi, M. Werner, K. Yoshimura, V. Masson-Delmotte
    • Journal Title

      J. Geophys. Res. Atmos.

      Volume: - Issue: 1 Pages: 246-263

    • DOI

      10.1002/2016jd025443

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] El Nino Southern Oscillation Signature in Atmospheric Water Isotopes over Maritime Continent during Wet Season2017

    • Author(s)
      Suwarman, R., K. Ichiyanagi, M. Tanoue, K. Yoshimura, S. Mori, M. Yamanaka, F. Syamsudin
    • Journal Title

      J. Meteor. Soc. Japan

      Volume: -

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Controlling factors of rainwater and water vapor isotopes at Bangalore, India: Constraints from observations in 2013 Indian monsoon2016

    • Author(s)
      Rahul P., P. Ghosha, S.K. Bhattacharya and K. Yoshimura
    • Journal Title

      J. Geophs. Res. Atmos.

      Volume: - Issue: 23

    • DOI

      10.1002/2016jd025352

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Long-distance transport of radioactive plume by nocturnal local winds2016

    • Author(s)
      Yoshikane, T., K. Yoshimura, E.-C. Chang, A. Saya, and T. Oki
    • Journal Title

      Scientific Reports

      Volume: 6 Issue: 1

    • DOI

      10.1038/srep36584

    • NAID

      120006347248

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Intraseasonal Variability of δ18O of Precipitation over the Indonesian Maritime Continent Related to the Madden-Julian Oscillation2016

    • Author(s)
      H. A. Belgaman, K. Ichiyanagi, M. Tanoue, R. Suwarman, K. Yoshimura
    • Journal Title

      SOLA

      Volume: 12 Pages: 192-197

    • NAID

      130005255019

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The response of winter Pacific North American pattern to the largest volcanic eruptions2016

    • Author(s)
      Liu, Z., K. Yoshimura, N. Buenning, Z. Jian
    • Journal Title

      Clim. Dyn.,

      Volume: - Issue: 11-12 Pages: 3599-3614

    • DOI

      10.1007/s00382-016-3287-0

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Interannual controls on oxygen isotope variability in Asian Monsoon precipitation and implications for paleoclimate reconstructions2016

    • Author(s)
      Yang, H., K.R. Johnson, M.L. Griffiths, K. Yoshimura
    • Journal Title

      Journal of Geophysical Research, Atmospheres

      Volume: 121 Issue: 14 Pages: 8410-8428

    • DOI

      10.1002/2015jd024683

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stable Water Isotopes in Climatology, Meteorology, and Hydrology: A Review2015

    • Author(s)
      Yoshimura, K., . , 93, doi:, 2015
    • Journal Title

      Journal of the Meteorological Society of Japan. Ser. II

      Volume: 93 Issue: 5 Pages: 513-533

    • DOI

      10.2151/jmsj.2015-036

    • NAID

      130005110008

    • ISSN
      0026-1165, 2186-9057
    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Assimilation Experiment of Weather Diary Data Using an LETKF System2017

    • Author(s)
      Panduka Neluwala, Kinya Toride, and Kei Yoshimura
    • Organizer
      the 3rd RIKEN International Symposium on Data Assimilation
    • Place of Presentation
      理化学研究所・計算科学研究機構(神戸市)
    • Year and Date
      2017-02-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent rapid advancement of stable water isotope measurement and modeling in precipitation process studies2017

    • Author(s)
      K. Yoshimura
    • Organizer
      The 6th Global Precipitation Measurement (GPM) Asia Workshop on Satellite Precipitation Data Utilization
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      2017-01-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Future stable water isotope projection with an isotope-AGCM driven by CMIP5 SSTs2016

    • Author(s)
      K. Yoshimura
    • Organizer
      AGU Fall Meeting 2016
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-12-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Transpiration accounts for two thirds of global terrestrial evaporation2016

    • Author(s)
      Zhongwang Wei, Kei Yoshimura, Xuhui Lee, Lixin Wang, Diego G. Miralles, Scott Jasechko
    • Organizer
      AGU Fall Meeting 2016
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-12-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Data assimilation with stable water isotope information2016

    • Author(s)
      Kei Yoshimura
    • Organizer
      EGU Leonardo conference 2016
    • Place of Presentation
      Ourense, Spain
    • Year and Date
      2016-10-25
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of Regional Earth System Model with RSM2016

    • Author(s)
      Kei Yoshimura
    • Organizer
      14th International Regional Spectral Model (RSM) Workshop
    • Place of Presentation
      Rio de Janeiro, Brazil
    • Year and Date
      2016-09-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Isotope data assimilation: Applications for modern hydrology and paleoclimatology2016

    • Author(s)
      Kei Yoshimura
    • Organizer
      Technical Meeting on "Reappraising the Use of Data on Isotopes in Precipitation"
    • Place of Presentation
      Vienna, Austria
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 雲量データ同化による観測インパクト2015

    • Author(s)
      芳村圭, 取出欣也
    • Organizer
      日本気象学会2015年度秋季大会
    • Place of Presentation
      京都テルサ(京都府京都市)
    • Year and Date
      2015-10-28
    • Related Report
      2015 Research-status Report
  • [Presentation] 水同位体情報データ同化による気候再解析の可能性2015

    • Author(s)
      芳村圭
    • Organizer
      日本水文科学会2015年度大会
    • Place of Presentation
      産業技術総合研究所(茨城県つくば市)
    • Year and Date
      2015-10-11
    • Related Report
      2015 Research-status Report
  • [Presentation] Validation of RCMs by using water isotope information2015

    • Author(s)
      Yoshimura,K.
    • Organizer
      International Workshop on Issues in downscaling of climate change projection
    • Place of Presentation
      エポカルつくば(茨城県つくば市)
    • Year and Date
      2015-10-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 水同位体情報を用いた水循環過程や古気候変動の解明2015

    • Author(s)
      芳村圭
    • Organizer
      JpGU2015
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2015-05-27
    • Related Report
      2015 Research-status Report
    • Invited
  • [Funded Workshop] 14th International Regional Spectral Model (RSM) Workshop2016

    • Place of Presentation
      Rio de Janeiro
    • Year and Date
      2016-09-27
    • Related Report
      2016 Annual Research Report

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Published: 2015-04-16   Modified: 2018-03-22  

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