干旱区生态环境知识资源中心(Arid): Rainfall Frequency Analysis Using Assessed and Corrected Satellite Precipitation Products in Moroccan Arid Areas. The Case of Tensift Watershed

Arid

DOI	10.1007/s41748-021-00290-x
	Rainfall Frequency Analysis Using Assessed and Corrected Satellite Precipitation Products in Moroccan Arid Areas. The Case of Tensift Watershed
	El Fels, Abdelhafid El Alaoui; Saidi, Mohamed Elmehdi; Bin Alam, Md Jobair
通讯作者	Saidi, ME (corresponding author)，Cadi Ayyad Univ, Fac Sci & Tech, Georesources Geoenvironm & Civil Engn Lab, BP 549, Marrakech, Morocco.
来源期刊	EARTH SYSTEMS AND ENVIRONMENT
ISSN	2509-9426
EISSN	2509-9434
出版年	2022-01
英文摘要	In this study, we apply statistical approaches based on frequency analysis and Artificial Neural Networks to map the 100-year monthly precipitation in a Moroccan watershed. This was accomplished by using assessed and corrected satellite-based rainfall products. A network of 10 rain gauges and six statistical validation criteria was used to compare in situ measurements and monthly rainfall estimates from the Climate Hazards Group InfraRed Precipitation with Station (CHIRPS) product for the rainy season (from November to April). Results indicate a fairly good agreement between the two data sources, with high correlation coefficients (> 0.5) for all months and low bias values (< 17%) especially for November, January, February and April. To correct the bias, we used an ANN model, with station coordinates and the monthly CHIRPS precipitation as input. The precipitation estimated by the ANN model was then compared with ground-based measurements. This simulation of monthly precipitation seems better, with significant Nash criteria and Pearson correlation coefficients (0.83-0.9). We then used this model to correct the CHIRPS gross precipitation and to perform a frequency analysis using spatial patterns of corrected rainfall. The results show that mountainous areas are conducive to high monthly precipitation amounts. These areas contrast with a potentially arid plain. This observation requires water supply plans which would consist of water transfers from surplus areas to deficit ones.
英文关键词	Morocco Tensift CHIRPS Artificial Neural Network Rainfall frequency analysis
类型	Article ; Early Access
语种	英语
收录类别	ESCI
WOS记录号	WOS:000741243800001
WOS关键词	ABSOLUTE ERROR MAE ; CLIMATE-CHANGE ; MIDDLE-EAST ; HIGH-ATLAS ; NORTH-AFRICA ; RESOURCES ; DROUGHT ; REGION ; TRENDS ; MODEL
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377208
作者单位	[El Fels, Abdelhafid El Alaoui; Saidi, Mohamed Elmehdi] Cadi Ayyad Univ, Fac Sci & Tech, Georesources Geoenvironm & Civil Engn Lab, BP 549, Marrakech, Morocco; [Bin Alam, Md Jobair] Integrated Management Serv IMS Engineers, Houston, TX USA
推荐引用方式 GB/T 7714	El Fels, Abdelhafid El Alaoui,Saidi, Mohamed Elmehdi,Bin Alam, Md Jobair. Rainfall Frequency Analysis Using Assessed and Corrected Satellite Precipitation Products in Moroccan Arid Areas. The Case of Tensift Watershed[J],2022.
APA	El Fels, Abdelhafid El Alaoui,Saidi, Mohamed Elmehdi,&Bin Alam, Md Jobair.(2022).Rainfall Frequency Analysis Using Assessed and Corrected Satellite Precipitation Products in Moroccan Arid Areas. The Case of Tensift Watershed.EARTH SYSTEMS AND ENVIRONMENT.
MLA	El Fels, Abdelhafid El Alaoui,et al."Rainfall Frequency Analysis Using Assessed and Corrected Satellite Precipitation Products in Moroccan Arid Areas. The Case of Tensift Watershed".EARTH SYSTEMS AND ENVIRONMENT (2022).