New generation of multi-scale NWP system (GRAPES): general scientific design

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（22）
• 页码范围: 3433-3445
• 页数: 13页
• 语种: 英文
• DOI: 10.1007/s11434-008-0494-z

摘要

A new generation of numerical prediction system GRAPES (a short form of Global/Regional Assimila-tion and PrEdiction System) was set up in China Meteorological Administration (CMA). This paper fo-cuses on the scientific design and preliminary results of the numerical prediction model in GRAPES, including basic idea and strategy of the general scientific design, multi-scale dynamic core, physical package configuration, architecture and parallelization of the codes. A series of numerical experiments using the real data with horizontal resolutions from 10 to 280 km and idealized experiments with very high resolution up to 100 m are conducted, giving encouraging results supporting the multi-scale ap-plication of GRAPES. The results of operational implementation of GRAPES model in some NWP cen-ters are also presented with stress at evaluations of the capability to predict the main features of pre-cipitation in China. Finally the issues to be dealt with for further development are discussed.