云南滑坡泥石流灾害精细化气象预警系统

Refined Weather-Based Warning System of Debris Flow Disasters for Yunnan Province

通过开展低纬高原地区MM5 V3不同参数化方案降水模拟试验,建立了基于SGI O350小型机的MM5中尺度数值模式业务系统,使降水预报输出产品时间分辨率小于等于60 min、水平距离分辨率小于等于10 km;对雷达、卫星降水反演资料与气象站及加密雨量站的实测资料用权重法集成为精细化实况降水场;基于滑坡泥石流灾害发生的天气气候背景和不同地质地貌条件下滑坡泥石流与降水的关系研究,采用PP-ES模式,建立了以时间分辨率为12 h、水平距离分辨率为30 km的滑坡泥石流灾害气象等级预报产品为主要内容的云南省精细化滑坡泥石流灾害气象监测预警系统。

Through the precipitation simulation experiments using MM5-V3 with various parameters for the low-latitude plateau area,the operational system of the MM5 meso-scale numerical prediction model is established based on the SGI O350 minicomputer.Its precipitation prediction has a time resolution of less than 60 minutes and a horizontal resolution of less than 10 km.By integrating the radar,retrieved satellite data,conventional meteorological data,and intensive rainfall observation data with the weighting method...