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题目:数值天气预报模式对雅砻江下游强降水预报能力检验研究
作者姓名:Ming-xiang YANG  Yun-zhong JIANG  Xing LU  Hong-li ZHAO  Yun-tao YE  Yu TIAN
作者单位:Department of Hydraulic Engineering, Tsinghua University;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research;China Eastern Route Corporation of South-to-North Water Diversion
基金项目:the National Natural Science Foundation of China,the Major National Science and Technology Program,the National Key Technology R&D Program of China during the “12th Five-Year Plan”,the Doctoral Thesis Innovation Program of the China Institute of Water Resources and Hydropower Research
摘    要:目的:检验数值天气预报模式(WRF)在雅砻江下游对强降水的预报能力,并找出表现最优的参数化方案组合。创新点:首次针对雅砻江流域检验 WRF模式对强降水的预报能力,并加入了计算时间作为评价的重要参考。方法:通过三场强降水事件,利用七种常用的云微物理参数化方案(Kessler,Linet al.(Lin),Single- Moment 3-class (WSM3),Single-Moment 5-class (WSM5),Ferrier,Single-Moment 6-class (WSM6),和 New Thompson et al.(NTH))和3种积云对流参数化方案(Kain-Fritsch (KF), Betts-Miller-Janjic (BMJ)和Grell-Devenyi (GD))的组合,对WRF模式在雅砻江下游的降水预报能力进行检验。为了评价 WRF 模式的预报能力,引入探测率(POD),空报率(FAR),BIAS和公平预报评分(ETS),对比不同方案组合的降水空间分布和站点预报的有效性。同时,均方根误差(RMSE)等指标被用来评价面雨量预报的精确性。除常规评价外,还将计算时间作为方案评价的重要参考,在满足精度需求的前提下优先选择计算效率高的方案组合。结论:1. WRF模式能够适用于雅砻江下游强降水预报;2. WSM3以及GD参数化方案组合的表现最为有效和稳定。

关 键 词:WRF模式  雅砻江流域  降水模拟  积云对流参数化方案  云微物理参数化方案

A weather research and forecasting model evaluation for simulating heavy precipitation over the downstream area of the Yalong River Basin
Ming-xiang YANG,Yun-zhong JIANG,Xing LU,Hong-li ZHAO,Yun-tao YE,Yu TIAN.A weather research and forecasting model evaluation for simulating heavy precipitation over the downstream area of the Yalong River Basin[J].Journal of Zhejiang University Science,2015(1):18-37.
Authors:Ming-xiang YANG  Yun-zhong JIANG  Xing LU  Hong-li ZHAO  Yun-tao YE  Yu TIAN
Institution:1. Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China
2. State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
3. China Eastern Route Corporation of South-to-North Water Diversion, Beijing 100038, China
Abstract:
Keywords:Weather research and forecasting (WRF) model  Yalong River Basin  Heavy precipitation  Precipitation simulation  Precipitation verification  Cumulus parameterization scheme  Microphysics scheme
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