干旱区生态环境知识资源中心(Arid): Reliability ofSM2RAINprecipitation datasets in comparison to gauge observations and hydrological modelling over arid regions

Arid

DOI	10.1002/joc.6704
	Reliability ofSM2RAINprecipitation datasets in comparison to gauge observations and hydrological modelling over arid regions
	Satge, Frederic; Hussain, Yawar; Molina-Carpio, Jorge; Pillco, Ramiro; Laugner, Coralie; Akhter, Gulraiz; Bonnet, Marie-Paule
通讯作者	Satge, F
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
英文摘要	Numerous satellite-based precipitation datasets have been successively made available. Their precipitation estimates rely on clouds properties derived from microwave and thermal sensors in a so-named 'top-down' approach. Recently, a 'bottom-up' approach to infer precipitation from soil moisture (SM) estimates has resulted in the release of two new precipitation datasets (P-datasets). One uses satellite-based SM estimates from the European Spatial Agency (ESA) Climate Change Initiative (CCI) (SM2RAIN-CCI) while the other uses satellite-based SM from European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) Advanced SCATterometer (ASCAT) (SM2RAIN-ASCAT). This study assesses SM2RAIN-ASCAT and -CCI reliability over two arid regions: Bolivian and Peruvian Altiplano and Pakistan (South Asia) using (a) direct comparisons with rain gauges and (b) testing the sensitivity of streamflow modelling to the P-datasets. Selecting two different regions and different indicators helps to assess whether the P-dataset reliability varies depending on the assessment method and location. For comparison purposes, the most reliable P-datasets from the literature are also considered (IMERG-E v.6, IMERG-L v.6, IMERG-F v.6, CHIRPS v.2 and MSWEP v.2.2). Compared to rain gauge observations and based on the modified Kling-Gupta Efficiency (KGE) values, the SM2RAIN-ASCAT and -CCI are more accurate in the Altiplano than in Pakistan. This difference is explained by a more favourable physical context for satellite-based SM estimates in the Altiplano. Over the Altiplano and despite an overall positive bias, SM2RAIN-ASCAT describes rain gauges temporal dynamics as well as IMERG-F v.6, CHIRPS v.2 and MSWEP v.2.2 and provides streamflow simulations very close to those obtained when using IMERG-F v.6, CHIRPS v.2 and MSWEP v.2.2 as forcing data.
英文关键词	arid region assessment gauges hydrological modelling satellite precipitation SM2RAIN
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000550978700001
WOS关键词	SATELLITE SOIL-MOISTURE ; RAINFALL-RUNOFF MODELS ; PRECIPITATION PRODUCTS ; PASSIVE MICROWAVE ; COMPLEX TERRAIN ; GLOBAL RAINFALL ; WATER-USE ; PERFORMANCE ; CLIMATE ; SM2RAIN-CCI
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328107
作者单位	[Satge, Frederic; Laugner, Coralie; Bonnet, Marie-Paule] Univ La Reunion, Univ Guyane, Univ Antilles, UMR228,ESPACE DEV,Univ Montpellier,IRD, 500 Rue Jean Francois Breton, F-34000 Montpellier, France; [Hussain, Yawar] Clemson Univ, Environm Engn & Earth Sci Dept, Clemson, SC USA; [Molina-Carpio, Jorge; Pillco, Ramiro] Univ Mayor San Andres UMSA, Inst Hidraul & Hidrol IHH, La Paz, Bolivia; [Akhter, Gulraiz] Quaid I Azam Univ, Dept Earth Sci, Islamabad, Pakistan
推荐引用方式 GB/T 7714	Satge, Frederic,Hussain, Yawar,Molina-Carpio, Jorge,et al. Reliability ofSM2RAINprecipitation datasets in comparison to gauge observations and hydrological modelling over arid regions[J]. French National Research Institute for Sustainable Development.
APA	Satge, Frederic.,Hussain, Yawar.,Molina-Carpio, Jorge.,Pillco, Ramiro.,Laugner, Coralie.,...&Bonnet, Marie-Paule.
MLA	Satge, Frederic,et al."Reliability ofSM2RAINprecipitation datasets in comparison to gauge observations and hydrological modelling over arid regions".INTERNATIONAL JOURNAL OF CLIMATOLOGY