沈阳区域气象中心中尺度数值预报业务系统的改进与拓展

介绍了改进后的沈阳区域气象中心中尺度数值预报业务系统的产品和运行情况。沈阳区域气象中心中尺度数值预报业务系统于1997年投入业务运行，目前已从最初的仅提供降水预报产品，发展到能提供降水预报、热带气旋路径预报、空气污染气象条件预报、人工增雨服务指导产品和城市环境气象业务预报所需的基本气象要素预报等多种业务所需的预报产品。业务系统每日两次自动运行，预报产品直接进入MICAPS、Vis5d、Grads绘图系统，进行图形显示，并直接进入区域气象中心局域网上的中尺度数值预报网页。目前，本系统的预报产品已经成为预报员每日必看的参考工具，经沈阳中心气象台评定，2002年汛期对辽宁省降水预报准确率已超过日本东亚模式。

Improved Meso-Scale Numerical Forecasting Operational System of Shen yang Regional Meteorological Center

The operation and function of the improved meso-scale n umerical foreca sting operational system of the Shenyang Regional Meteorological Center are desc ribed. The system is put into operation in 1997. At first, the system provided o nly precipitation forecasts, and recently it is able to provide such operational products as precipitation forecast, tropic cyclone route forecast, meteorologic al condition forecast of air pollution, service guides of precipitation enhancem ent and basic meteorological element forecast needed by the operational urban en viro nmental meteorological prediction. The system runs twice every day automatically . The products directly enter the graph system of MICAPS, Vis5d and Grads to dis play charts and directly enter meso-scale numerical forecasting web pages of th e Shenyang Regional Meteorological Center Local Area Network. The forecasting prod ucts have become necessary reference data for forecasters. According to the asse ssment made by the Shenyang Central Observatory, its forecasting accuracy exceed ed the Japanese East Asia Model in the flood season of 2002.