干旱区生态环境知识资源中心(Arid): Comparison of High-Resolution Satellite Precipitation Products in Sub-Saharan Morocco

Arid

DOI	10.3390/w14203336
	Comparison of High-Resolution Satellite Precipitation Products in Sub-Saharan Morocco
	Rachdane, Mariame; El Khalki, El Mahdi; Saidi, Mohamed Elmehdi; Nehmadou, Mohamed; Ahbari, Abdellatif; Tramblay, Yves
通讯作者	Rachdane, M
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:20
英文摘要	Precipitation is a crucial source of data in hydrological applications for water resources management. However, several regions suffer from limited data from a ground measurement network. Remotely sensed data may provide a viable alternative for these regions. This study aimed to evaluate six satellite products (GPM-F, CHIRPS, PERSIANN-CCS-CDR, GPM-L, GPM-E and PDIR-Now), with high spatio-temporal resolution, in the sub-Saharan regions of Morocco. Precipitation observation data from 33 rain-gauge stations were collected and used over the period from September 2000 to August 2020. The assessment was performed on three temporal scales (daily, monthly and annually) and two spatial scales (pixel and basin scales), using different quantitative and qualitative statistical indices. The results showed that the GPM-F product performed the best, according to the different evaluation metrics, up to events with 40 mm/day, while the GPM near real-time products (GPM-E and GPM-L) were better at detecting more intense rainfall events. At the daily time scale, GPM-E and GPM-L and, on monthly and annual scales, CHIRPS and PERSIANN-CCS-CDR, provided satisfactory precipitation estimates. Moreover, the altitude-based analysis revealed a bias increasing from low to high altitudes. The continental and mountainous basins showed the lowest performance compared to the other locations closer to the Atlantic Ocean. The evaluation based on the latitudes of rain gauges showed a decrease of bias towards the most arid zones. These results provide valuable information in a scarcely gauged and arid region, showing that GPM-F could be a valuable alternative to rain gauges.
英文关键词	sub-Saharan Morocco scarce data region satellite precipitation products (SPPs) pixel and basin scales
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000875153300001
WOS关键词	INTEGRATED MULTISATELLITE RETRIEVALS ; ABSOLUTE ERROR MAE ; RAINFALL PRODUCTS ; PERFORMANCE EVALUATION ; TMPA ; REGION ; BASIN ; VALIDATION ; PARTS ; IMERG
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394842
推荐引用方式 GB/T 7714	Rachdane, Mariame,El Khalki, El Mahdi,Saidi, Mohamed Elmehdi,et al. Comparison of High-Resolution Satellite Precipitation Products in Sub-Saharan Morocco[J],2022,14(20).
APA	Rachdane, Mariame,El Khalki, El Mahdi,Saidi, Mohamed Elmehdi,Nehmadou, Mohamed,Ahbari, Abdellatif,&Tramblay, Yves.(2022).Comparison of High-Resolution Satellite Precipitation Products in Sub-Saharan Morocco.WATER,14(20).
MLA	Rachdane, Mariame,et al."Comparison of High-Resolution Satellite Precipitation Products in Sub-Saharan Morocco".WATER 14.20(2022).