摘要
利用中尺度模式MM5V3.6, 针对祁连山地区2002年7月14~17日的一次降水过程, 设计了一组不同水平分辨率的试验进行数值模拟.并将模式结果与实测资料进行对比, 结果表明: 高水平分辨率对降水中心位置的模拟较好, 但同时会产生虚假降水中心, 且模拟的降水中心量值一般都大于实测值.而低水平分辨率对降水量值的模拟较好, 但对降水中心位置的模拟没有高水平分辨率的好.
Using the mesoscale atmospheric model MM5V3.6, the precipitation in Qilian Mountain on July 14- 17, 2002 is simulated by using different horizontal resolution. Then the simulated results are compared with observed precipitation. The results show that the precipitation center can be simulated well by using high horizontal resolution, but there are unreal precipitation centers, and its value is larger than that of the observation; the value of precipitation center can be simulated well by using low horizontal resolution, but the simulated precipitation center is not more than high horizontal resolution.
出处
《高原气象》
CSCD
北大核心
2005年第4期496-502,共7页
Plateau Meteorology
基金
"西部开发科研行动"重大项目(2004BA901A16)
中国科学院方向性创新项目(KZCX3-SW-329)
国家自然科学基金项目(40405021)共同资助
关键词
水平分辨率
祁连山区降水
中尺度模式
Horizontal resolution
Qilian Mountain's precipitation
Mesoscale atmospheric model