南昌工程学院学报Issue(6)：1-5,5.
TRMM面降雨量数据在鄱阳湖流域的精度评价
Precision evaluation for TRMM precipitation data in Poyang Lake Basin
摘要
Abstract
In this paper,a comprehensive evaluation was conducted for TRMM V7 precipitation data,in-cluding daily,monthly and annual precipitation. The in-situ measured precipitation data was collected from 47 ground weather stations in Poyang Lake Basin in 2011 and 2012 . The results show that the estimated daily precipitation using TRMM data is significantly different from the in-situ measured precipitation,only achieving a correlation coefficient(r)of 0. 67 and the root mean squared error(RMSE)ranging from 10 mm to 20 mm;and that the estimated monthly and annual precipitations from TRMM data are consistent with the in-situ measured precipitations,with r2 of 0. 897 and 0. 845,and mean relative error(MRE)is less than 85%. The effect of vegetation cover rate on precipitation is not obvious in the Poyang Lake Basin in our study,but the precipitation is relative to terrain,the precipitation is larger in mountain areas with higher elevation than in plain areas. The monthly and annual precipitation data can be potentially applied in hydrological and ecosystem models.关键词
TRMM/降雨量/鄱阳湖流域/精度评价Key words
TRMM/precipitation/Poyang Lake Basin/precision evaluation分类
天文与地球科学引用本文复制引用
张红梅..TRMM面降雨量数据在鄱阳湖流域的精度评价[J].南昌工程学院学报,2014,(6):1-5,5.基金项目
南昌工程学院青年基金项目（2008KJ006）；江西省教育厅科研项目（20133BBG70011）；南昌大学“鄱阳湖环境与资源利用”教育部重点实验室开放基金项目 （）
