安徽农业科学2012，Vol.40Issue(1)：424-428,5.
一次梅雨锋暴雨过程中陆面影响的数值模拟研究
Study on Numerical Simulation of the Impact of the Land-Surface Process in a Meiyu Front Rainstorm
摘要
Abstract
[ Objective ] The research aimed to carry out numerical simulation on impact of land-surface process in a Meiyu front rainstorm. [ Method ] Based on the meso-scale atmospheric non-hydrostatic model GRAPES-Meso which coupled with NOAH land-surface module, a Meiyu front rainstorm in Jiang-Huai basin during 6-8 July ,2005 was simulated. Via sensitivity tests with and without land-surface process, the impact of land-surface process on Meiyu front rainstorm was studied. [ Result] GRAPES-Meso which coupled with NOAH land-surface process could simulate the daily variation characteristics of Meiyu front precipitation and atmospheric low-level southwest jet. The land-surface process-could improve the simulations of precipitation initiation, intensity and distribution. The improvement of precipitation initiation simulation was especially obvious, which solved the spin-up problem of model to some extent. When the land-atmosphere interaction wasn' t considered, the precipitation initiation of model was very slow. The intensity evolution of simulated precipitation was different from actual situation. Moreover, it couldn't simulate daily variation characteristics of precipitation and southwest jet. [Conclusion] The land-surface process had important impact on Jiang-Huai Meiyu process.关键词
GRAPES-Meso/暴雨/NOAH/陆面过程/数值模拟Key words
GRAPES-Meso/ Rainstorm/ NOAH/ Land-surface process/ Numerical simulation分类
天文与地球科学引用本文复制引用
李鹏..一次梅雨锋暴雨过程中陆面影响的数值模拟研究[J].安徽农业科学,2012,40(1):424-428,5.基金项目
国家自然科学基金项目(41005002,40875029). （41005002,40875029）
