干旱区生态环境知识资源中心(Arid): Performance evaluation of satellite-based rainfall products on hydrological modeling for a transboundary catchment in northwest Africa

Arid

DOI	10.1007/s00704-019-02928-3
	Performance evaluation of satellite-based rainfall products on hydrological modeling for a transboundary catchment in northwest Africa
	Guermazi, Emna; Milano, Marianne; Reynard, Emmanuel
通讯作者	Guermazi, Emna
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2019
卷号	138 期号:3-4 页码:1695-1713
英文摘要	The scarcity of rainfall data is one of the main problems affecting the use of hydrological models. Several model satellite-based rainfall estimates (SREs) have been developed to provide an alternative to poorly or ungauged basins. The aim of this work was to evaluate the suitability of SREs for hydrological modeling using a semi-distributed model in the transboundary basin of Medjerda, shared by Tunisia and Algeria. Two satellite-based rainfall products (PERSIANN-CDR and CHIRPSv2) were first compared to rain gauge observations based on sub-basin and point-to-pixel analysis. The selected SREs products were then used as inputs to simulate discharge at a daily time-step over the 1996-2016 period. The simulated streamflows were compared to data measured at four runoff gauging stations and at the outlet of two dams. It was first shown that both SRE products perform weakly at daily scale but that the CHIRPSv2 product performs better at monthly scale. Second, comparison at sub-basin scale led to a better correlation with rain gauge observations than point-to-pixel analysis. Third, direct sampling can be reliably used to fill gaps in discharge time series by using auxiliary stations highly correlated with the target station. Finally, the CHIPRSv2 daily satellite rainfall product is more efficient and more suitable than the PERSIANN-CDR product for hydrological modeling. Thus, CHIRPSv2 can be used as an alternative or as a complementary source of information to simulate hydrological models in arid and semi-arid regions and can successfully solve the issue of missing rainfall data in transboundary catchments.
类型	Article
语种	英语
国家	Switzerland
收录类别	SCI-E
WOS记录号	WOS:000494710000033
WOS关键词	CLIMATE-CHANGE ; WATER-RESOURCES ; PERSIANN-CDR ; TIME-SERIES ; RIVER-BASIN ; PRECIPITATION PRODUCTS ; MISSING DATA ; LAND-USE ; HEC-HMS ; TRMM
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310593
作者单位	Univ Lausanne, Inst Geog & Sustainabil, Bldg Geopolis, CH-1015 Lausanne, Switzerland
推荐引用方式 GB/T 7714	Guermazi, Emna,Milano, Marianne,Reynard, Emmanuel. Performance evaluation of satellite-based rainfall products on hydrological modeling for a transboundary catchment in northwest Africa[J],2019,138(3-4):1695-1713.
APA	Guermazi, Emna,Milano, Marianne,&Reynard, Emmanuel.(2019).Performance evaluation of satellite-based rainfall products on hydrological modeling for a transboundary catchment in northwest Africa.THEORETICAL AND APPLIED CLIMATOLOGY,138(3-4),1695-1713.
MLA	Guermazi, Emna,et al."Performance evaluation of satellite-based rainfall products on hydrological modeling for a transboundary catchment in northwest Africa".THEORETICAL AND APPLIED CLIMATOLOGY 138.3-4(2019):1695-1713.