HAO Chun-feng 1, 2, JIA Yang-wen 1, WANG Hao 1

1. State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
2. Beijing IWHR Technology Co., Ltd., Beijing 100038, China

Abstract: Hydrological forecasting and flood management play an important role in basin flood control system which includes engineering and non-engineering measures. It’s necessary to research on coupling of atmospheric and hydrological models so as to further extend the effective period of flood forecasting and improve the accuracy of hydrological forecasts by comprehensive simulation of the whole water cycle process. The paper establishes integrated simulation platform of Land-Atmosphere Coupling by unilateral coupling of numerical weather prediction model WRF and distributed hydrological model WEP. Finally, the processes of precipitation and runoff between Sep. 24th and Oct. 31st in 2000 of the Weihe basin are simulated, which shows satisfying accuracy and great potential of Land-Atmosphere Coupling research.

Key words: Land-Atmosphere Coupling, hydrological forecasting, WRF, WEP

Published in: Journal of Hydraulic Engineering, Vol. 43, No. 9, 2012