关键词: 气象水文, 网格计算, 应用框架

Abstract: Based on the current research status of weather forecasting and hydrological application，and grid computing technology，a scalable Grid model is proposed for the Weather and Hydrological applications（WHaGrid）.In this paper，a scalable grid model is proposed for WHaGrid.Its framework and corresponding components’ design are paid more attention.Firstly，heterogeneous weather and hydrology resources across diverse organizations are integrated for uniform accesses.Common elements in various weather forecasting and hydrological applications are extracted and shaped to the authentication and activity control of users，atop of which different application services running independently can be loaded into the system dynamically to accept submitted jobs.Analysis shows the proposed model is of great flexibility and scalability.

Key words: weather and hydrology, grid computing, application framework