干旱区生态环境知识资源中心(Arid): A multi-scale analysis of Namibian rainfall over the recent decade - comparing TMPA satellite estimates and ground observations

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DOI	10.1016/j.ejrh.2016.07.003
	A multi-scale analysis of Namibian rainfall over the recent decade - comparing TMPA satellite estimates and ground observations
	Lu, Xuefei; Wang, Lixin; Pan, Ming; Kaseke, Kudzai F.; Li, Bonan
通讯作者	Wang, LX
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2016
卷号	8 页码:59-68
英文摘要	Study region: Namibia. Study focus: The lack of ground observations has long been a major obstacle in studying rainfall patterns in many dryland regions, particularly in the data scarce African continent. In this study, a continuous 6-year (2008-2013) daily record of ground observations collected from Weltevrede Farm at the edge of the Namib Desert was used to evaluate TRMM Multi satellite Precipitation Analysis (TMPA, 0.25 resolution) daily rainfall estimates of this area. A Mann-Kendall trend analysis was conducted using all the available annual TMPA satellite data (1998-2015) to examine long-term trends in rainfall amount, intensity, frequency and seasonal variations over four locations across a rainfall gradient. New hydrological insights for the region: The agreement between ground and satellite rainfall data was generally good at annual/monthly scales but large variations were observed at the daily scale. Results showed a spatial variability of rainfall trends across the rainfall gradient. We observed significant changes in frequency along with insignificant changes in intensity and no changes in total amount for the driest location, but no changes in any of the rainfall parameters were observed for the three wetter locations. The results also showed increased rainfall variability for the driest location. This study provided a useful approach of using TMPA data associated with trend analysis to extend the data record for ecohydrological studies for similar data scarce conditions. The results of this study will also help constrain IPCC predictions in this region. (C) 2016 The Author(s). Published by Elsevier B.V.
英文关键词	Drylands Ecohydrology Ground data validation Mann-Kendall The Namib Desert Trend analysis TRMM
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000407358500005
WOS关键词	PRECIPITATION ANALYSIS TMPA ; VARIABILITY ; PATTERNS
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331864
作者单位	[Lu, Xuefei; Wang, Lixin; Kaseke, Kudzai F.; Li, Bonan] IUPUI, Dept Earth Sci, Indianapolis, IN 46202 USA; [Pan, Ming] Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA; [Pan, Ming] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Lu, Xuefei,Wang, Lixin,Pan, Ming,et al. A multi-scale analysis of Namibian rainfall over the recent decade - comparing TMPA satellite estimates and ground observations[J],2016,8:59-68.
APA	Lu, Xuefei,Wang, Lixin,Pan, Ming,Kaseke, Kudzai F.,&Li, Bonan.(2016).A multi-scale analysis of Namibian rainfall over the recent decade - comparing TMPA satellite estimates and ground observations.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,8,59-68.
MLA	Lu, Xuefei,et al."A multi-scale analysis of Namibian rainfall over the recent decade - comparing TMPA satellite estimates and ground observations".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 8(2016):59-68.