基于数据库的可能最大暴雨估算系统的开发应用

Application of Probable Maxmum Precipitation Estimate System based on Database

传统的水文数据通常以年鉴的形式刊印、存储,因此在推求可能最大暴雨(PMP)时需要的水文气象数据难获得且不易查询。数据库具有数据共享性,将数据库技术与PMP估算相结合,建立基于数据库的可能最大暴雨估算系统。利用数据库进行统一的标准计算,并对结果进行合理性分析,得出小于世界不同历时的最大雨量记录的外包线值的结果合理。采用数据库进行标准化计算可以避免人为因素的误差,也简化计算过程。

The traditional hydrological data are usually printed and stored in the form of yearbook. So it＇s difficult to get and query hydrological and meteorological data when they are needed to calculate probable maxmum precipitation（PMP）. Database has the function of data sharing. Combining database technology with PMP estimate, it establishes probable maxmum precipitation estimate system based on database. Using the database doing unified standard the system calculates, and analyzes the results, gets that less than the world different maximum rainfall records of outsourcing line is reasonable. Using database to standardized calculation can avoid the error of the artificial factor, and simplify the calculation process.