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Numerical Studies of Mesoscale Convective Systems Using a Cloud-Resolving Model

Research Project

Project/Area Number 14340139
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

TSUBOKI Kazuhisa  NAGOYA UNIVERSITY, Hydrospheric Atmospheric Research Center, Associate Professor, 地球水循環研究センター, 助教授 (90222140)

Co-Investigator(Kenkyū-buntansha) SATOMURA Takehiko  Kyoto University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (20273435)
SHINODA Taro  NAGOYA UNIVERSITY, Hydrospheric Atmospheric Research Center, Assistant Professor, 地球水循環研究センター, 助手 (50335022)
UYEDA Hiroshi  NAGOYA UNIVERSITY, Hydrospheric Atmospheric Research Center, Professor, 地球水循環研究センター, 教授 (80184935)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥12,500,000 (Direct Cost: ¥12,500,000)
Fiscal Year 2003: ¥6,100,000 (Direct Cost: ¥6,100,000)
Fiscal Year 2002: ¥6,400,000 (Direct Cost: ¥6,400,000)
Keywordsmesoscale system / numerical model / cloud / Baiu front / simulation / multi-scale structure / Earth Simulator / heavy rainfall / データ同化 / レーダー
Research Abstract

The Baiu season in East Asia is characterized by a very humid climate. In the area, long-lasting and intense precipitation system occasionally develop and cause a heavy rainfall. They are referred to as a mesoscale convective system. In this study, we performed numerical simulation experiments of mesoscale convective systems using CReSS (the Cloud Resolving Storm Simulator) in collaboration with researchers of Taiwan and Korea.
In 2002, we improved CReSS ; map projection capability, improvement of the lateral boundary conditions, assimilation of Doppler radar data. Using the improved CReSS, we performed daily weather prediction experiment and simulation experiments of mesoscale convective systems in warm season. We also invited researchers of Taiwan and Korea and made collaborative experiments.
In 2003, we performed optimization of CReSS to the Earth Simulator and evaluated its performance. The result showed that vector operation ratio is 99.4 %, parallel operation ratio is 99.985 % and … More sustained efficiency 33 %. Using CReSS on the Earth Simulator, we performed numerical experiments of multitscale Baiu frontal lows, the localized heavy rainfall in Minamata City, a typhoon and snow band cloud over the Sea of Japan.
The experiment of the Minamata localized heavy rainfall was performed with the horizontal resolution of 500m using 120 nodes (960CPUs) of the Earth Simulator. The result showed detailed structure of individual convective cells and overall structures of the rainfall system. The multi-scale structures of the precipitation system associated with the Baiu front were also well simulated. The experiment of snow cloud band showed the formation and development of cloud bands or cloud streets over the sea. We also performed the prediction experiment of heavy rainfall caused by Typhoon RUSA and showed that the spiral band intensifies when the typhoon comes to the southern Korean Peninsula. These results show that computation using the cloud resolving model is important for the accurate simulation of a heavy rainfall. Less

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Tsuboki, K., A.Sakakibara: "Large-scale parallel computing of Cloud Resolving Storm Simulator."High Performance Computing. 243-259 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ohigashi, T., K.Tsuboki: "Structure and maintenance process of stationary snowbands along coastal region observed by Doppler and dual-polarization radars."Proc.of 31st Conference on Radar Meteorology. 2. 885-888 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Liu.A.Q., G.W.K.Moore, K.Tsuboki, I.A.Renfrew: "A high-resolution simulation of convective roll clouds during a cold-air outbreak."Geophysical Research Letters. 31. L03101 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K., T.Asai: "The Multi-scale Structure and Development Mechanism of Mesoscale Cyclones over the Sea of Japan in Winter."Journal of the Meteorological Society of Japan. 82. 597-621 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kazuhisa Tsuboki, Atsushi Sakakibara: "High Resolution Prediction Experiment Using the Cloud Resolving Storm Simulator."Proc.of the 6th International workshop on Next Generation Climate Models for Advanced High Performance Computing Facilities. 42-49 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kazuhisa Tsuboki: "Numerical experiments of heavy rain using the Cloud Resolving Storm Simulator."Proc.of the International Conference on High-Impact Weather and Climate. 122-125 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K.: "The Textbook for the Twelfth IHP Trainig Course in 2002"Eiichi Nakakita and Hiroshi Uyeda. 234 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K, A.Sakakibara: "Large-scale parallel computing of Cloud Resolving Storm Simulator."High Performance Computing, Springer, H.P.Zima et al.Eds. 243-259 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ohigashi, T., K.Tsuboki: "Structure and maintenance process of stationary snowbands along coastal region observed by Doppler and dual-polarization radars."Proc.of 31st Conference on Radar Meteorology. 2. 885-888 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Liu.A.Q., G.W.K.Moore, K.Tsuboki, I.A.Renfrew: "A high-resolution simulation of convective roll clouds during a cold-air outbreak."Geophysical Research Letters. 31. L03101 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K., T.Asai: "The Multi-scale Structure and Development Mechanism of Mesoscale Cyclones over the Sea of Japan in Winter."J.Meteor.Soc.Japan. 82. 597-621 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K., A.Sakakibara: "High Resolution Prediction Experiment Using the Cloud Resolving Storm Simulator."Proc.of the 6th International workshop on-Next Generation Climate Models for Advanced High Performance Computing Facilities. 42-49 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K.: "Numerical experiments of heavy rain using the Cloud Resolving Storm Simulator."Proc.of the International Conference on High-Impact Weather and Climate. 122-125 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K.: "Basics on numerical simulation."International Hydrological Programme, Precipitation and water Resources, The Textbook for the Twelfth IHP Trainig Course in 2002, (Ed.Eiichi Nakakita and Hiroshi Uyeda). 51-78 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsuboki, K., A.Sakakibara: "Large-scale parallel computing of Cloud Resolving Storm Simulator"High Performance Computing. 243-259 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 金田幸恵, 坪木和久, 武田喬男: "東海豪雨のメカニズム:その雨をもたらしたもの"天気. 49. 619-626 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] Liu.A.Q., G.W.K.Moore, K.Tsuboki, I.A.Renfrew: "A high-resolution simulation of convective roll clouds during a cold-air outbreak"Geophysical Research Letters. 31(印刷中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Tsuboki, K., T.Asai: "The Multi-scale Structure and Development Mechanism of Mesoscale Cyclones over the Sea of Japan in Winter"Journal of the Meteorological Society of Japan. (掲載予定).

    • Related Report
      2003 Annual Research Report
  • [Publications] Tsuboki, K., A.Sakakibara: "Large-scale parallel computing of Cloud Resolving Storm Simulator"High Performance Computing. 243-259 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 金田幸恵, 坪木和久, 武田喬男: "東海豪雨のメカニズム:その雨をもたらしたもの"天気. 49. 619-626 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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