Accuracy validation of TRMM Multisatellite Precipitation Analysis daily precipitation products in the Lancang River Basin of China

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	Accuracy validation of TRMM Multisatellite Precipitation Analysis daily precipitation products in the Lancang River Basin of China
	Zeng, HongWei(曾红伟) ; Li, LJ ; Hu, JM ; Liang, LQ ; Li, JY ; Li, B ; Zhang, K
刊名	THEORETICAL AND APPLIED CLIMATOLOGY
	2013
卷号	112 期号:3-4 页码:389-401
通讯作者	Li, LJ
英文摘要	Using statistical methods and contingency table method, this paper evaluates the accuracy of 12 years (1998-2009) Tropical Rainfall Measuring Mission Multisatellite Precipitation Analysis (TMPA) daily-accumulated precipitation products within a year, the dry season, and rain season for each of the five subbasins and for each grid point (0.25 x 0.25A degrees) in the Lancang River basin by comparing the results with data from the 35 rain gauges. The results indicate that TMPA daily precipitation estimates tend to show an underestimation comparing to the rain gauge daily precipitations under any scenarios, especially for the middle stream in the dry season. The accuracy of TMPA-averaged precipitation deteriorates with the increase of elevation at both basin and grid scale, with upstream and downstream having the worst and best accuracy, respectively. A fair capability was shown when using daily TMPA accumulations to detect rain events at drizzle rain and this capability improves with the increase of elevation. However, the capability deteriorates when it is used to detect moderate rain and heavy rain events. The accuracy of TMPA precipitation estimate products is better in the rain season than in the dry season at all scenarios. Time difference and elevation are the main factors that have impact on the accuracy of TMPA daily-accumulated precipitation products.
收录类别	SCI
资助信息	Ministry of Science and Technology of China 2008FY110300-01
公开日期	2013-07-09
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27929]
专题	地理科学与资源研究所_研究生部
推荐引用方式 GB/T 7714	Zeng, HongWei,Li, LJ,Hu, JM,et al. Accuracy validation of TRMM Multisatellite Precipitation Analysis daily precipitation products in the Lancang River Basin of China[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2013,112(3-4):389-401.
APA	Zeng, HongWei.,Li, LJ.,Hu, JM.,Liang, LQ.,Li, JY.,...&Zhang, K.(2013).Accuracy validation of TRMM Multisatellite Precipitation Analysis daily precipitation products in the Lancang River Basin of China.THEORETICAL AND APPLIED CLIMATOLOGY,112(3-4),389-401.
MLA	Zeng, HongWei,et al."Accuracy validation of TRMM Multisatellite Precipitation Analysis daily precipitation products in the Lancang River Basin of China".THEORETICAL AND APPLIED CLIMATOLOGY 112.3-4(2013):389-401.