人民黄河2015，Vol.37Issue(12)：23-27,5.DOI:10.3969/j.issn.1000-1379.2015.12.007
基于卫星数据的淮河流域干湿分析及效用评估
Analysis of Dry&Wet Based on TRMM Satellite Rainfall Data and Its Utility Assessment in Huaihe River Basin
摘要
Abstract
In this study, the Huaihe River basin was selected as the study area.Firstly, the Tropical Rainfall Measuring Mission 3B42V7 precipitation data set covering the study area was evaluated via the comparisons with the rain-gauged precipitation data.Subsequently, these two precipitation data sets were adopted to drive the SPI model to assess the wet and dry analysis utility with multiple time scales of TRMM satellite rainfall data.The results show that: a) the correlation and precision are very high between TRMM precipitation and site data on month scale;b) the correlation is also very high between TRMM and site precipitation data on grid scale, and the SPI6s has the highest accuracy, regression analysis shows that the accuracy of SPI1s with latitude and elevation changes dramatically, and it is that only the regression equation of CSI3-latitude, CSI6-elevation and CSI12-elevation through a significant test in the others;c)at the regional scale, the calculation result shows that, the correlation of two kinds of data is also very high in Henan, Shandong, Anhui and Jiangsu provinces, SPI6s has the highest accuracy, while the consistency of SPI6g and SPI6s is poor in Shandong Province;d) at the whole watershed,it has the best consistency between SPIs and SPIg,and SPI6s still has the highest accuracy.关键词
TRMM数据/标准化降水指数/效用评估/干湿分析/淮河流域Key words
TRMM data/SPI/utility assessment/dry and wet analysis/Huaihe River basin分类
天文与地球科学引用本文复制引用
常帅鹏,江善虎..基于卫星数据的淮河流域干湿分析及效用评估[J].人民黄河,2015,37(12):23-27,5.基金项目
科技部科技基础性专项课题(2011IM011000) （2011IM011000）
高等学校学科创新引智计划项目( B08048). （ B08048）
