干旱区生态环境知识资源中心(Arid): Evaluation of the GPM-IMERG Precipitation Product for Flood Modeling in a Semi-Arid Mountainous Basin in Morocco

Arid

DOI	10.3390/w12092516
	Evaluation of the GPM-IMERG Precipitation Product for Flood Modeling in a Semi-Arid Mountainous Basin in Morocco
	Saouabe, Tarik; El Khalki, El Mahdi; Saidi, Mohamed El Mehdi; Najmi, Adam; Hadri, Abdessamad; Rachidi, Said; Jadoud, Mourad; Tramblay, Yves
通讯作者	Tramblay, Y
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:9
英文摘要	A new precipitation dataset is provided since 2014 by the Global Precipitation Measurement (GPM) satellite constellation measurements combined in the Integrated Multi-satellite Retrievals for GPM (IMERG) algorithm. This recent GPM-IMERG dataset provides potentially useful precipitation data for regions with a low density of rain gauges. The main objective of this study is to evaluate the accuracy of the near real-time product (IMERG-E) compared to observed rainfall and its suitability for hydrological modeling over a mountainous watershed in Morocco, the Ghdat located upstream the city of Marrakech. Several statistical indices have been computed and a hydrological model has been driven with IMERG-E rainfall to estimate its suitability to simulate floods during the period from 2011 to 2018. The following results were obtained: (1) Compared to the rain gauge data, satellite precipitation data overestimates rainfall amounts with a relative bias of +35.61% (2) In terms of the precipitation detection capability, the IMERG-E performs better at reproducing the different precipitation statistics at the catchment scale, rather than at the pixel scale (3) The flood events can be simulated with the hydrological model using both the observed and the IMERG-E satellite precipitation data with a Nash-Sutcliffe efficiency coefficient of 0.58 and 0.71, respectively. The results of this study indicate that the GPM-IMERG-E precipitation estimates can be used for flood modeling in semi-arid regions such as Morocco and provide a valuable alternative to ground-based precipitation measurements.
英文关键词	GPM IMERG precipitation floods Morocco flood modeling
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000580415400001
WOS关键词	SOIL-MOISTURE DATA ; SATELLITE RAINFALL DATA ; PASSIVE MICROWAVE ; RUNOFF ; VALIDATION ; TERRAIN ; TMPA
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
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/2XILL650/326971
作者单位	[Saouabe, Tarik; El Khalki, El Mahdi; Saidi, Mohamed El Mehdi; Najmi, Adam; Hadri, Abdessamad] Cadi Ayyad Univ, Georesources Geoenvironm & Civil Engn Lab, Marrakech 40000, Morocco; [Rachidi, Said] Tensift Hydraul Basin Agcy, Marrakech 40000, Morocco; [Jadoud, Mourad] Chouaib Doukkali Univ, Geosci & Environm Techn Lab, El Jadida 24000, Morocco; [Tramblay, Yves] Univ Montpellier, CNRS, IRD, HydroSci Montpellier, F-34000 Montpellier, France
推荐引用方式 GB/T 7714	Saouabe, Tarik,El Khalki, El Mahdi,Saidi, Mohamed El Mehdi,et al. Evaluation of the GPM-IMERG Precipitation Product for Flood Modeling in a Semi-Arid Mountainous Basin in Morocco[J]. French National Research Institute for Sustainable Development,2020,12(9).
APA	Saouabe, Tarik.,El Khalki, El Mahdi.,Saidi, Mohamed El Mehdi.,Najmi, Adam.,Hadri, Abdessamad.,...&Tramblay, Yves.(2020).Evaluation of the GPM-IMERG Precipitation Product for Flood Modeling in a Semi-Arid Mountainous Basin in Morocco.WATER,12(9).
MLA	Saouabe, Tarik,et al."Evaluation of the GPM-IMERG Precipitation Product for Flood Modeling in a Semi-Arid Mountainous Basin in Morocco".WATER 12.9(2020).