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大气科学  2005 

TRMM降水率资料的三维变分同化及其对"杜鹃"(0313)台风预报的改进

DOI: 10.3878/j.issn.1006-9895.2005.04.11

Keywords: TRMM卫星降水率,三维变分同化,台风预报

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Abstract:

在GRAPES(GlobalandRegionalAssimilationandPredictionEnhancedSystem,全球/区域同化预报系统)三维变分同化系统的基础上,用改进的郭晓岚对流参数化方案作为观测算子,来同化TRMM(TropicalRainfallMeasuringMission,热带降水监测计划)卫星反演的降水率资料.单点试验表明该方案通过调整背景场的水汽辐合和辐散的垂直结构,使得同化后观测算子计算的降水率更接近实况.对台风"杜鹃"(0313)的同

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