干旱区生态环境知识资源中心(Arid): Assessing the impacts of climate and land cover change on groundwater recharge in a semi-arid region of Southern India

Arid

DOI	10.1007/s00704-024-05065-8
	Assessing the impacts of climate and land cover change on groundwater recharge in a semi-arid region of Southern India
	Chandra, Nathi Ajay; Sahoo, Sanat Nalini
通讯作者	Chandra, NA
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2024
卷号	155 期号:8 页码:7147-7163
英文摘要	This study examined how Land Use Land Cover (LULC) and climate affect groundwater recharge in Southern India's semi-arid region. Coupled Model Intercomparison Project Phase6-Global Circulation Models (CMIP6-GCMs) climatic data is used to generate climate projections for the future. The GCMs are ranked for precipitation and temperatures using the Taylor Skill Score (TSS). Rating Metric (RM) is preferred to establish the final rank of the GCMs. Ensemble of projections from the top four ranked GCMs: Max Planck Institute Earth System Model version 1.2 - Low Resolution (MPI-ESM1-2-LR), European Consortium Earth System Model version 3 (EC-Earth3), Max Planck Institute Earth System Model version 1.2 - High Resolution (MPI-ESM1-2-HR), and Institute for Numerical Mathematics Coupled Model version 5 (INM-CM5-0) are used as they estimated the most reliable forecasts for all the three considered parameters. MPI-ESM1-2-LR is the top-ranked GCM with an RM of 0.92. The future LULC map is produced using Cellular Automata and Artificial Neural Networks (CA-ANN). Soil and Water Assessment Tool (SWAT) is used to evaluate the individual impact of climate change on groundwater recharge and the combined impacts of LULC and climate change on groundwater recharge in water-stressed regions (semi-arid) using standard modelling techniques. The SWAT model has been calibrated using monthly discharge data from a gauging station, resulting in an overall accuracy of R2 = 0.83 and NSE = 0.81. The SWAT groundwater module is employed to estimate recharge across different time frames: baseline (1985-2014), near-future (2015-2030), mid-future (2031-2060) and far-future (2061-2100), considering moderate (SSP2-4.5) and extreme (SSP5-8.5) emission scenarios. Results indicate that under constant LULC conditions, recharge varied between 135 and 215 mm/year for SSP2-4.5 and 149 to 316 mm/year for SSP5-8.5. Notably, compared to the baseline recharge of 116.4 mm, future groundwater recharge increased under both SSP scenarios. The observed variations in recharge carry significant implications for understanding how varied emission scenarios may impact groundwater resources over the specified time periods.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001247310700002
WOS关键词	SWAT MODEL ; SCENARIOS ; BASIN
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405794
推荐引用方式 GB/T 7714	Chandra, Nathi Ajay,Sahoo, Sanat Nalini. Assessing the impacts of climate and land cover change on groundwater recharge in a semi-arid region of Southern India[J],2024,155(8):7147-7163.
APA	Chandra, Nathi Ajay,&Sahoo, Sanat Nalini.(2024).Assessing the impacts of climate and land cover change on groundwater recharge in a semi-arid region of Southern India.THEORETICAL AND APPLIED CLIMATOLOGY,155(8),7147-7163.
MLA	Chandra, Nathi Ajay,et al."Assessing the impacts of climate and land cover change on groundwater recharge in a semi-arid region of Southern India".THEORETICAL AND APPLIED CLIMATOLOGY 155.8(2024):7147-7163.