干旱区生态环境知识资源中心(Arid): Coastal aquifer recharge and groundwater-seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya-Tunisia)

Arid

DOI	10.5802/crgeos.74
	Coastal aquifer recharge and groundwater-seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya-Tunisia)
	Goncalves, Julio; Seraphin, Pierre; Stieglitz, Thomas; Chekireb, Amine; Hamelin, Bruno; Deschamps, Pierre
通讯作者	Goncalves, J (corresponding author)，Aix Marseille Univ, CNRS, IRD, INRAE,Coll France,CEREGE, Aix En Provence, France.
来源期刊	COMPTES RENDUS GEOSCIENCE
ISSN	1631-0713
EISSN	1778-7025
出版年	2021
卷号	353 期号:1
英文摘要	The Djeffara plain, extending over Tunisia and Libya (48,000 km(2)), experiences unsustainable exploitation of groundwater, the severity of which needs to be determined. Here, we used data from Gravity Recovery and Climate Experiment (GRACE) and Global Land Data Assimilation System (GLDAS) to assess the groundwater storage variation (Delta GWS) for the period 2002-2016. Delta GWS values, downscaled over a 0.5 degrees x 0.5 degrees grid using pumping wells spatial distribution and rates, were introduced in a discrete set of groundwater and salt budget equations to ascertain the recharge and the coastal fluxes. An average recharge of 4.3 +/- 2.7 mm.yr(-1) representing 2.2 +/- 1.4% of the domain-averaged annual rainfall was obtained. A saline intrusion of 147.3 x 10(6) and 46.9 x 10(6) m(3).yr(-1) was calculated for the Tripoli (Libya) and Djerba (Tunisia) areas, respectively. The overall Submarine Groundwater Discharge (SGD) of freshwater along the 450 km long Djeffara coast represents about 339.6 x 10(6) m(3).yr(-1) for the 2002-2016 period.
英文关键词	Groundwater mass balance Satellite-derived gravity Recharge Submarine groundwater discharge Arid domain Groundwater sustainability
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000743470800001
WOS关键词	STABLE-ISOTOPES ; WATER ; DISCHARGE ; MODEL ; FLOW ; INTRUSION ; BASIN
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376012
作者单位	[Goncalves, Julio; Seraphin, Pierre; Stieglitz, Thomas; Chekireb, Amine; Hamelin, Bruno; Deschamps, Pierre] Aix Marseille Univ, CNRS, IRD, INRAE,Coll France,CEREGE, Aix En Provence, France
推荐引用方式 GB/T 7714	Goncalves, Julio,Seraphin, Pierre,Stieglitz, Thomas,et al. Coastal aquifer recharge and groundwater-seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya-Tunisia)[J],2021,353(1).
APA	Goncalves, Julio,Seraphin, Pierre,Stieglitz, Thomas,Chekireb, Amine,Hamelin, Bruno,&Deschamps, Pierre.(2021).Coastal aquifer recharge and groundwater-seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya-Tunisia).COMPTES RENDUS GEOSCIENCE,353(1).
MLA	Goncalves, Julio,et al."Coastal aquifer recharge and groundwater-seawater exchanges using downscaled GRACE data: case study of the Djeffara plain (Libya-Tunisia)".COMPTES RENDUS GEOSCIENCE 353.1(2021).