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Application of TRMM/PR Data for Numerical Simulations with Mesoscale Model MM5
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作者 徐枝芳 葛文忠 +2 位作者 党人庆 ToshioIguchi TakaoTakeda 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2003年第2期185-193,共9页
Numerical simulations of two heavy rainfall cases in the Changjiang-Huaihe River basin are performed with TRMM/PR (precipitation radar) data incorporated into the PSU/NCAR meso scale model MM5. The mixing ratio of rai... Numerical simulations of two heavy rainfall cases in the Changjiang-Huaihe River basin are performed with TRMM/PR (precipitation radar) data incorporated into the PSU/NCAR meso scale model MM5. The mixing ratio of rainwater q <SUB>r</SUB> is obtained from the R &#8722;q <SUB>r</SUB> relation (R is the rainfall rate), and the mixing ratio of water vapor q <SUB>v</SUB> in the model is replaced by q <SUP>1</SUP>&#8242;<SUB>v</SUB> = q <SUB>v</SUB>+q <SUB>r</SUB>. Then, TRMM/PR data are used to modify humidity analysis obtained from conventional radiosonde data, and sensitivity experiments (STE) are performed and compared to control experiments (CTL). Results show that both the heavy rainfall distribution and its maximum amounts from STE are improved compared with those from CTL. 展开更多
关键词 TRMM/PR numerical simulation mixing ratio of rainwater mixing ratio of vapor heavy rainfall spin-up problem cumulus parameterization scheme
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