The program structure designing and optimizing tests of GRAPES physics

The program structure designing and optimizing tests of GRAPES physics
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GRAPES物理程序结构设计及优化测试

DOI:
10.1007/s11434-008-0418-y
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发表时间:
2008-11
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根据全球/区域同化与预报系统(GRAPES)程序结构的模块化和标准化,建立了可插拔兼容、可移植的区域中尺度和全球中尺度物理软件包。该软件包的组件完整性与其他先进物理模型具有可比性。构建了一个连接GRAPES物理和动力框架的三层结构。友好的界面是为用户插入自己的物理包而设计的。结合数值试验,对网格点暴雨的数值预报现象进行了分析。对空气垂直速度计算方案进行了改进。对物理方案进行了优化试验,调整了相关参数。结果表明,通过改进降水方案,可以有效地消除假格点暴雨。从而提高了降水预报的分值。
According to the modularization and standardization of program structure in Global/Regional Assimilation and Prediction System (GRAPES), the plug-compatible and transplantable regional meso-scale and global middle-range physics software package is established. The package’s component integrality is comparative with the other advanced models physics. A three-level structure of connecting GRAPES physics and dynamic frame has been constructed. The friendly interface is designed for users to plug in their own physics packages. Phenomenon of grid-point storm rainfall in numerical prediction is analyzed with the numerical tests. The scheme of air vertical velocity calculation is improved. Optimizing tests of physics schemes are performed with the correlative parameters adjusting. The results show that the false grid-point storm rainfall is removed by precipitation scheme improving. Then the score of precipitation forecast is enhanced.
DOI: 10.1175/1520-0469(1989)046
发表时间: 1989-08
影响因子: 3.1
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