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Mechanisms of diurnal variation and its year-to-year variation of tropical precipitation using numerical model

Research Project

Project/Area Number 15340157
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionKyoto University

Principal Investigator

SATOMURA Takehiko  Kyoto University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (20273435)

Co-Investigator(Kenkyū-buntansha) NISHI Noriyuki  Kyoto University, Graduate School of Science, Assistant Professor, 大学院・理学研究科, 助手 (00222183)
KANAE Shinjiro  Research Institute for Humanity and Nature, Associate Professor, 総合地球環境学研究所, 助教授 (20313108)
OHSAWA Teruo  Kobe University, Faculty of Maritime Science, Associate Professor, 海事科学部, 助教授 (80324284)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 2005: ¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2004: ¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 2003: ¥5,800,000 (Direct Cost: ¥5,800,000)
KeywordsTropics / Asian monsoon / Precipitation variation / Diurnal variation / Year-to-year variation / Numerical simulation / Cloud resolving model / Regional climate model
Research Abstract

In order to check the ability of the regional climate model, one month time integration was performed. The results of this simulation showed that the migration of large scale precipitation systems accompanied by the eastward movement of MJO was represented in the model, the representation of rough patterns of precipitation systems was robust, and the absolute values of precipitation amount significantly differ among results using different cumulus parameterization schemes.
In order to study the mechanism of the diurnal variation of precipitation, numerical simulations of the diurnal variation of precipitation in Bangladesh was performed, where the maximum precipitation occurs in the midnight to the early morning. It was revealed that the precipitation was not triggered by the convergence between the southeasterly monsoon and cold katabatic wind from the Megalaya mountain in the night but the monsoon wind was lifted by the Megalaya mountain directly or by the cold pool formed by the precipitation system in the previous day. We also studied the mechanism of the 10-20 days variation of precipitation using observed data.
In the aspect of development of global climate models, we performed ensemble simulations to study the effects of soil wetness and soil temperature on the atmospheric circulations. It was concluded that soil conditions controlled the surface evaporation only in regions with relatively dry surface relative humidity. Therefore, it was suggested that the predictability of the atmospheric circulation over the such dry regions would increase provided the soil condition determined by, for example, remote sensing techniques.

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (47 results)

All 2006 2005 2004 2003 Other

All Journal Article (41 results) Publications (6 results)

  • [Journal Article] 降水変動に与える陸面影響度の季節性2006

    • Author(s)
      山田朋人 他
    • Journal Title

      水工学論文集

      Pages: 1-6

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mechanisms of the northward movement of submonthly-scale vortices over the Bay of Bengal during the boreal summer.2006

    • Author(s)
      Yokoi, S., T.Satomura
    • Journal Title

      Mon.Wea.Rev. 134(In printing)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Influence of "realistic" land-surface wetness on predictability of seasonal precipitation in boreal summer.2006

    • Author(s)
      Kanae, S., Y.Hirabayashi, T.Yamada, T.Oki
    • Journal Title

      J.Climate (In printing)

    • NAID

      120005820693

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Numerical simulation on the diurnal variation of precipitation over northeastern Bangladesh : A case study of an active period 14-21 June 1995.2005

    • Author(s)
      Kataoka, A.他
    • Journal Title

      SOLA 1

      Pages: 205-208

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Simulation of potential impacts of land use/cover changes on surface water fluxes in the Chaophraya river basin, Thailand2005

    • Author(s)
      Kim, W.他
    • Journal Title

      Geophys. Res. 110(D8),D08110

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] An observational study of intraseasonal variations over Southeast Asia during the 1998 rainy season2005

    • Author(s)
      Yokoi, S. 他
    • Journal Title

      Mon. Wea. Rev. 133

      Pages: 2091-2104

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] インドシナ半島における地表面状態の経年変動・季節変動と,降雨・エルニーニョ・DME2005

    • Author(s)
      西田顕郎 他
    • Journal Title

      日本リモートセンシング学会誌 25(5)

      Pages: 473-481

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 相似性を示す統計指標の数学的構造2005

    • Author(s)
      山田朋人 他
    • Journal Title

      水工学論文集

      Pages: 1-6

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical simulation on the diurnal variation of precipitation over northeastern Bangladesh : A case study of an active period 14-21 June 19952005

    • Author(s)
      Kataoka, A., et al.
    • Journal Title

      SOLA 1

      Pages: 205-208

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Simulation of potential impacts of land use/cover changes on surface water fluxes in the Chaophraya river basin, Thailand2005

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

      J.Geophys.Res. 110

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Response of Land Surface in Indian China Peninsula to Rainfall, El Nino, and DME2005

    • Author(s)
      Nishida, K., et al.
    • Journal Title

      J.Remote Sensing Soc.Japan 25

      Pages: 473-481

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] An observational study of intraseasonal variations over Southeast Asia during the 1998 rainy season2005

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

      Mon.Wea.Rev. 133

      Pages: 2091-2104

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Numerical simulation on the diurnal variation of precipitation over northeastern Bangladesh : A case study of an active period 14-21 June 1995.2005

    • Author(s)
      Kataoka, A., T.Satomura
    • Journal Title

      SOLA 1

      Pages: 205-208

    • NAID

      130004725804

    • Related Report
      2005 Annual Research Report
  • [Journal Article] An observational study of intraseasonal variations over Southeast Asia during the 1998 rainy season.2005

    • Author(s)
      Yokoi, S., T.Satomura
    • Journal Title

      Mon.Wea.Rev. 133

      Pages: 2091-2104

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Simulation of potential impacts of land use/cover changes on surface water fluxes in the Chaophraya river basin, Thailand.2005

    • Author(s)
      Kim, W., S.Kanae, Y.Agata, T.Oki
    • Journal Title

      J.Geophys.Res. 110(D8)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A 100-year (1901-2000) global retrospective estimation of the terrestrial water cycle.2005

    • Author(s)
      Hirabayashi, Y., S.Kanae, I.Struthers, T.Oki
    • Journal Title

      J.Geophys.Res. 110(D19)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] An observational study of intraseasonal variations over Southeast Asia during the 1998 rainy season2005

    • Author(s)
      Yokoi, S., T.Satomura
    • Journal Title

      Mone.Wea.Rev (発表予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Database of local meteorological fields simulated with mesoscale model MM5 and its validation2004

    • Author(s)
      Fukao, K.他
    • Journal Title

      J. Global Environ. Eng. 10

      Pages: 129-136

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] MM5の各大気境界層スキームによる風速計算精度の比較・検討2004

    • Author(s)
      橋本篤 他
    • Journal Title

      風力エネルギー 第70巻

      Pages: 62-69

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 複雑地形上でのMM5の風況計算精度と高解像度化の限界に関する検討2004

    • Author(s)
      橋本篤 他
    • Journal Title

      日本風工学会論文集 第30巻,第3号

      Pages: 65-73

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 大気大循環モデルにおける大気陸面過程相互作用の比較分析2004

    • Author(s)
      山田朋人 他
    • Journal Title

      水工学論文集 48

      Pages: 223-228

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Database of local meteorological fields simulated with mesoscale model MM5 and its validation2004

    • Author(s)
      Fukao, K., et al.
    • Journal Title

      J.Global Environ.Eng. 10

      Pages: 129-136

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Accuracy of the wind calculation over complex terrain with he meso-scale model MM5 and the higher limit of the horizontal resolution2004

    • Author(s)
      Hashimoto, A., et al.
    • Journal Title

      J.Wind Eng. 30

      Pages: 65-73

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A numerical study on the detrainment of tracers by cumulus convection in TOGA COARE.2004

    • Author(s)
      Yasunaga, K., et al.
    • Journal Title

      J.Meteor.Soc.Japan 82

      Pages: 861-878

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Database of local meteorological fields simulated with mesoscale model MM5 and its validation2004

    • Author(s)
      Fukao, K., T.Ohsawa, S.Shimada, T.Yasuda
    • Journal Title

      J.Global Environ.Eng. 10

      Pages: 129-136

    • NAID

      130004128879

    • Related Report
      2004 Annual Research Report
  • [Journal Article] MM5の各大気境界層スキームによる風速計算精度の比較・検討2004

    • Author(s)
      橋本篤, 大澤輝夫, 安田孝志, 林泰一
    • Journal Title

      風力エネルギー 70

      Pages: 62-69

    • NAID

      40006388001

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A numerical study on the detrainment of tracers by cumulus convection in TOGA COARE2004

    • Author(s)
      Yasunaga, K., H.Kida, T.Satomura, N.Nishi
    • Journal Title

      J.Meteor.Soc.Japan 82

      Pages: 861-878

    • NAID

      110001803115

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Colored moisture analysis estimates of variations in 1998 Asian monsoon water sources2004

    • Author(s)
      Yoshimura, K., T.Oki, N.Ohte, S.Kanae
    • Journal Title

      J.Meteor.Soc.Japan 82

      Pages: 1315-1329

    • NAID

      110001817354

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Regions of Strong Coupling Between Soil Moisture and Precipitation2004

    • Author(s)
      The GLACE Teamn
    • Journal Title

      Science

      Pages: 1138-1140

    • Related Report
      2004 Annual Research Report
  • [Journal Article] メソ気象モデルMM5を用いた局地気象場のデータベース化とその精度検証2003

    • Author(s)
      深尾一仁 他
    • Journal Title

      第11回地球環境シンポジウム論文集(土木学会地球環境委員会)

      Pages: 111-116

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Diurnal variation of precipitation by moving mesoscale systems : Radar observations in northern Thailand.2003

    • Author(s)
      Okumura, K.他
    • Journal Title

      Geophys. Res. Let. 30

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Development of high-precision nonhydrostatic atmospheric model(1) : Governing equations2003

    • Author(s)
      Satomura, T.他
    • Journal Title

      京都大学防災研究所年報 46B

      Pages: 331-336

    • NAID

      120002514900

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 第4回非静力学モデルに関するワークショップの報告2003

    • Author(s)
      里村雄彦 他
    • Journal Title

      天気 50

      Pages: 259-261

    • NAID

      110001812946

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Accuracy of terrain following coordinates over isolated mountain : Steep mountain model intercomparison project (St-MIP)2003

    • Author(s)
      Satomura, T.他
    • Journal Title

      京都大学防災研究所年報 46B

      Pages: 337-346

    • NAID

      80016353057

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 2003年度春季大会専門分科会報告「熱帯アジアモンスーンオンセットのメカニズム理解に向けて」2003

    • Author(s)
      里村雄彦 他
    • Journal Title

      天気 50

      Pages: 822-822

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The 600-750hPa relative humidity minimum observed during PEM-Tropics B.2003

    • Author(s)
      Yasunaga, K.他
    • Journal Title

      Geophys. Res. Let. 30

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 積雲対流による物質の鉛直輸送に関する数値的研究2003

    • Author(s)
      安永数明 他
    • Journal Title

      京都大学防災研究所年報 46B

      Pages: 397-410

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Diurnal variation of precipitation by moving mesoscale systems : Radar observations in northern Thailand2003

    • Author(s)
      Okumura, K., et al.
    • Journal Title

      Geophys.Res.Let. 30

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Development of high-precision nonhydrostatic atmospheric model (1) : Governing equations2003

    • Author(s)
      Satomura, T., et al.
    • Journal Title

      Annuals Disas.Prev.Res.Inst. 46B

      Pages: 331-336

    • NAID

      120002514900

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Accuracy of terrain following coordinates over isolated mountain : Steep mountain model intercomparison project (St-MIP)2003

    • Author(s)
      Satomura, T., et al.
    • Journal Title

      Annuals Disas.Prev.Res.Inst. 46B

      Pages: 337-346

    • NAID

      80016353057

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The 600-750 hPa relative humidity minimum observed during PEM-Tropics B.2003

    • Author(s)
      Yasunaga, K., et al.
    • Journal Title

      Geophys.Res.Let. 30

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] K.Okumura, et al.: "Diurnal variation of precipitation by moving mesoscale systems : Radar observations in northern Thailand"Geophys.Res.Let.. 30・20. (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Hirabayashi, et al.: "Application of satellite-based surface soil moisture data to simulating seasonal precipiation"J.Hydrometeor.. 4. 929-943 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Yoshimura, et al.: "A Quantitative Analysis of short-term 180 Variability with a Rayleigh-type Isotope Circulation Model"J.Geophys.Res.. 108・D20. (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 山田朋人 他: "大気大循環モデルにおける大気陸面過程相互作用の比較分析"水工学論文集. 48(印刷中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 深尾一仁 他: "メソ気象モデルMM5を用いた局地気象場のデータベース化とその精度検証"第11回地球環境シンポジウム論文集. 111-116 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Yasunaga, et al.: "The 600-750 hPa relative humidity minimum observed during PEM-Treopics B"Geophys.Res.Let. 30・24. (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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