摘要
卫星降水资料在测站分布稀疏的复杂地形区域具有较大的优越性,但卫星与测站获取降水原理不同,需对卫星资料的可用性进行评估。以赣江上游为例,根据雨量站实测降水数据评估热带降雨观测计划(TRMM)多卫星分析降水数据资料(TMPA)的精度,并将该降水数据作为陆面水文模式Noah-LSM的输入,以评估TMPA降水数据在流域水文过程模拟的适用性。结果表明,TMPA日降水数据精度虽偏低,但在我国南方降水资料匮乏地区的水文过程模拟研究中具有一定的应用前景,TMPA月降水数据精度较高,可为无资料地区水资源计算和规划提供数据支持。
Satellite precipitation data is very useful to estimate the precipitation in regions where the topography is complicated and less rain survey station are set up. As satellites and rain survey station are different in the theory of pre- cipitation estimation, it is necessary to evaluate the feasibility of satellite data. In this paper, the upper reaches of the Ganjiang River is selected as the study region to evaluate the quality of the tropical rainfall measuring mission （TRMM） multi-satellite precipitation analysis product （TMPA） based on the precipitation data in rain survey station. Subsequent- ly, the TMPA data are used to drive the Noah land-surface model Noah-LSM） so as to assess the feasibility of the TMPA precipitation data in hydrologic process simulation. The results show that although TMPA daily precipitation data have low precision, it can be potentially applied to hydrologic process simulation in precipitation data shortage area in South China; moreover, TMPA monthly precipitation data is relatively accurate. Therefore, the TMPA monthly data can pro- vide data support for water resources evaluation and planning in data shortage area.
出处
《水电能源科学》
北大核心
2012年第12期10-12,213,共4页
Water Resources and Power
基金
国家自然科学基金青年基金资助项目(50909033)
国家自然科学基金国际(地区)合作与交流基金资助项目(40911130507)
水文水资源与水利工程科学国家重点实验室基本科研业务费自主研究基金资助项目(2011585412)
