干旱区生态环境知识资源中心(Arid): Estimation of groundwater storage variations in African river basins: Response to global climate change using GRACE and GRACE-FO among past two decades

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DOI	10.1016/j.asr.2024.05.003
	Estimation of groundwater storage variations in African river basins: Response to global climate change using GRACE and GRACE-FO among past two decades
	Mohasseb, Hussein A.; Shen, Wenbin; Jiao, Jiashuang; Hassan, Ayman A.
通讯作者	Mohasseb, HA
来源期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
EISSN	1879-1948
出版年	2024
卷号	74 期号:3 页码:1164-1182
英文摘要	Groundwater Storage (GWS) is an important component of the water cycle and a vital resource for supplying water to millions of people as well as sustaining domestic and economic activities, especially in arid and semi-arid regions such as Africa. This study aims to estimate and analyze the recent groundwater changes (DGW) for 11 major African basins in light of climate changes and global warming utilizing the data from the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) from January 2003 to December 2021. We proposed a new gap-filling technique to calculate the missing months between GRACE and GRACE-FO missions for the continuous estimation of groundwater changes. Then, we establish a new framework to analyze and investigated the climate parameters that could affect groundwater changes using Empirical Orthogonal Function (EOF) technique. Our analysis reveals that the new gap-filling technique is significantly consistent with the TWS time-series based on the trend line analysis. The lowest GPCC drought index value occurs in the lower Nile basin by approximately -0.93, while the highest occurs in the middle of Africa in Congo basin by approximately -0.02. The precipitation rate is mostly concentrated in mid-Africa while North and South Africa shows a weak rate. Meanwhile, according to the analysis of dependent climate parameters, climate change has had a negative impact on groundwater. However, the long-term effect on the groundwater does not clearly appear because most of Africa is located within semi-arid and arid regions. The effect of rain on groundwater was evident through EOF analysis, which shows GWS EOF Mode-2 (36.28%) and precipitation EOF Mode-1 (78.34%) were found to be in significant agreement in spatio-temporal domains. (c) 2024 COSPAR. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
英文关键词	GRACE Groundwater African basins Climate change EOF
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001256790300001
WOS关键词	GRAVITY RECOVERY ; SATELLITE GRAVIMETRY ; LINEAR-REGRESSION ; WATER ; IMPACT ; ASSIMILATION ; PATTERNS ; VARIABILITY ; RESOURCES ; RECHARGE
WOS类目	Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402615
推荐引用方式 GB/T 7714	Mohasseb, Hussein A.,Shen, Wenbin,Jiao, Jiashuang,et al. Estimation of groundwater storage variations in African river basins: Response to global climate change using GRACE and GRACE-FO among past two decades[J],2024,74(3):1164-1182.
APA	Mohasseb, Hussein A.,Shen, Wenbin,Jiao, Jiashuang,&Hassan, Ayman A..(2024).Estimation of groundwater storage variations in African river basins: Response to global climate change using GRACE and GRACE-FO among past two decades.ADVANCES IN SPACE RESEARCH,74(3),1164-1182.
MLA	Mohasseb, Hussein A.,et al."Estimation of groundwater storage variations in African river basins: Response to global climate change using GRACE and GRACE-FO among past two decades".ADVANCES IN SPACE RESEARCH 74.3(2024):1164-1182.