Evaluation of the WRF Double-Moment 6-Class Microphysics Scheme for Precipitating Convection

被引：126

作者：

Hong, Song-You ^{[1
,2
]}

Lim, Kyo-Sun Sunny ^{[1
,2
]}

Lee, Yong-Hee ^{[3
]}

Ha, Jong-Chul ^{[3
]}

Kim, Hyung-Woo ^{[4
]}

Ham, Sook-Jeong ^{[4
]}

Dudhia, Jimy ^{[5
]}

机构：

[1] Yonsei Univ, Dept Atmospher Sci, Seoul 120749, South Korea

[2] Yonsei Univ, Global Environm Lab, Seoul 120749, South Korea

[3] Korea Meteorol Adm, Natl Inst Meteorol Res, Forecast Res Lab, Seoul 156010, South Korea

[4] Korea AF, Weather Grp 73, Chungnam 321923, South Korea

[5] Natl Ctr Atmospher Res, Mesoscale & Microscale Meteorol Div, Boulder, CO 80305 USA

来源：

ADVANCES IN METEOROLOGY | 2010年 / 2010卷

基金：

新加坡国家研究基金会; 美国国家科学基金会;

关键词：

CLOUD MICROPHYSICS; WEATHER RESEARCH; ANALYSIS TMPA; MODEL; FORECASTS; PARAMETERIZATION; PREDICTION; IMPLEMENTATION; SIMULATION; EVENT;

D O I：

10.1155/2010/707253

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

This study demonstrates the characteristics of the Weather Research and Forecasting (WRF) Double-Moment 6-Class (WDM6) Microphysics scheme for representing precipitating moist convection in 3D platforms, relative to the WSM6 scheme that has been widely used in the WRF community. For a case study of convective system over the Great Plains, the WDM6 scheme improves the evolutionary features such as the bow-type echo in the leading edge of the squall line. We also found that the WRF with WDM6 scheme removes spurious oceanic rainfall that is a systematic defect resulting from the use of the WSM6 scheme alone. The simulated summer monsoon rainfall in East Asia is improved by weakening (strengthening) light (heavy) precipitation activity. These changes can be explained by the fact that the WDM6 scheme has a wider range in cloud and rain number concentrations than does the WSM6 scheme .

引用

页数：10

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