气候变化领域集成服务门户(CCPortal): Estimating Climate Change's Impacts on the Recharge of an Ungauged Tropical Aquifer (Togolese Coastal Sedimentary Basin)

CCPortal

DOI	10.3390/w16050731
	Estimating Climate Change's Impacts on the Recharge of an Ungauged Tropical Aquifer (Togolese Coastal Sedimentary Basin)
	Barry, Rachid; Barbecot, Florent; Rodriguez, Manuel; Mattei, Alexandra; Djongon, Aime
发表日期	2024
EISSN	2073-4441
起始页码	16
结束页码	5
卷号	16 期号:5
英文摘要	The aquifers of the Togolese coastal sedimentary basin are the principal sources of water for almost half of the country's population. These aquifers' features have not been adequately monitored and studied. The resource is threatened by human activities, notably agriculture, industry, and withdrawals for drinking water supplies. This situation is exacerbated by the potential effects of climate change. For this research, a basin-scale study was conducted to estimate current groundwater recharge and its future evolution in response to climate change. A recharge model based on Thornthwaite-Mather balance equations using runoff coefficients characterizing land use was fed with current and future climate data from an optimistic scenario (RCP 4.5) and a pessimistic scenario (RCP 8.4). Despite the associated uncertainties, the soil-water balance model at monthly time steps predicts a recharge of 3 to 455 mm per year from 2020 to 2039, and 40 to 420 mm per year from 2040 to 2059 under the optimistic RCP 4.5 scenario. According to the pessimistic RCP 8.5 scenario, the recharge will range between 16 and 515 mm per year from 2020 to 2049 and from 1 to 467 mm per year between 2040 and 2059. As a result, the basin's groundwater recharge range, which is currently 47 to 225 mm, will significantly increase. This study provides a scientific basis for the sustainable management of groundwater in the Togolese coastal sedimentary basin. The recharge of the groundwater in the basin will increase regardless of the climate scenario and will support future development in the Togolese coastal sedimentary basin.
英文关键词	groundwater recharge; Togolese coastal basin; climate change
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:001182942800001
来源期刊	WATER
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/308363
作者单位	University of Quebec; University of Quebec Montreal; Laval University; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Universite Paris Cite
推荐引用方式 GB/T 7714	Barry, Rachid,Barbecot, Florent,Rodriguez, Manuel,et al. Estimating Climate Change's Impacts on the Recharge of an Ungauged Tropical Aquifer (Togolese Coastal Sedimentary Basin)[J],2024,16(5).
APA	Barry, Rachid,Barbecot, Florent,Rodriguez, Manuel,Mattei, Alexandra,&Djongon, Aime.(2024).Estimating Climate Change's Impacts on the Recharge of an Ungauged Tropical Aquifer (Togolese Coastal Sedimentary Basin).WATER,16(5).
MLA	Barry, Rachid,et al."Estimating Climate Change's Impacts on the Recharge of an Ungauged Tropical Aquifer (Togolese Coastal Sedimentary Basin)".WATER 16.5(2024).