A Review on GRAPES-TMM Operational Model System at Guangzhou Regional Meteorological Center

作者：钟水新,陈子通,徐道生,戴光丰,蒙伟光,张诚忠,张艳霞,吴凯昕,冯业荣,陈德辉,薛纪善

摘要：This review summarizes the general developments of the operational mesoscale model system based on the Global/Regional Assimilation and Prediction System-Tropical Monsoon Model (GRAPES-TMM) at the Guangzhou Regional Meteorological Center. GRAPES-TMM consists of the Tropical Regional Atmospheric Model System for the South China Sea (TRAMS, a typhoon model with a horizontal resolution of 9 km), the Mesoscale Atmospheric Regional Model System (MARS, 3km) and the fine-scale Rapid Update Cycling (RUC, 1km) forecasting system. The main advances of model dynamical core and physical processes are summarized, including the development of the 3D reference atmosphere scheme, the coupling scheme between dynamics and model physics, the calculation of nonlinear terms by fractional steps, the gravity wave drag scheme induced by sub-grid orography and a simplified model for landsurface scheme. The progress of model applications is reviewed and evaluated. The results show that the updated 9-3-1forecasting system provides an overall improved performance on the weather forecasting in south China, especially for typhoon-genesis and typhoon-track forecasting as well as short-range weather forecasting. Capabilities and limitations as well as the future development of the forecasting system are also discussed.

发文机构：Guangdong Provincial Key Laboratory of Regional Numerical Weather Prediction/Guangzhou Institute of Tropical and Marine Meteorology

关键词：GRAPES-TMMTRAMSphysicalprocesses9-3-1forecastingsystem

分类号： P435[天文地球—大气科学及气象学]