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Numerical Weather Model-based Satellite Precipitation Adjustment over Complex Terrain
来源:LASG    访问次数:    报告时间:2017-7-31
【报告人】        Dr. Xinxuan Zhang
【报告人单位】University of Connecticut, USA
【报告时间】    2017年7月31日(星期一)10:00
【报告地点】    科研楼303会议室
【报告简介】    

This research contributes to the improvement of high resolution satellite applications over mountainous topography. Such mountainous regions are usually covered by sparse networks of in-situ observations while quantitative precipitation estimation from satellite sensors exhibits strong underestimation of heavy orographically enhanced storm events. To address this issue, our research applies a satellite error correction technique based solely on high-resolution numerical weather simulations.

The error correction technique has been applied on six major mountain ranges all over the world and bringssignificant improvements on the satellite precipitation products comparing with ground observations(Zhang et al. 2013*1, Zhang et al. 2016*2). So far two different satellite precipitation products, NOAA Climate Prediction Center morphing technique (CMORPH) product and the Global Satellite Mapping of Precipitation (GSMaP) product,are considered. Future study will include the newly released IMERG products as well. Hydrological model is employed to evaluatesatellite precipitation error propagation in runoff simulations.

 
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