Modeling the Vulnerability of an Urban Groundwater System due to the Combined Impacts of Climate Change and Management Scenarios

Earth Interactions

M.Sekhar¹ 

关键词: Climate impacts;    Urban groundwater;    Management scenarios;    Numerical modeling;    PORFLOW;   

DOI  :  10.1175/2012EI000499.1

学科分类：地球科学(综合)

来源: American Geophysical Union

【 摘 要 】

AbstractClimate change impact on a groundwater-dependent small urban town has been investigated in the semiarid hard rock aquifer in southern India. A distributed groundwater model was used to simulate the groundwater levels in the study region for the projected future rainfall (2012–32) obtained from a general circulation model (GCM) to estimate the impacts of climate change and management practices on groundwater system. Management practices were based on the human-induced changes on the urban infrastructure such as reduced recharge from the lakes, reduced recharge from water and wastewater utility due to an operational and functioning underground drainage system, and additional water extracted by the water utility for domestic purposes. An assessment of impacts on the groundwater levels was carried out by calibrating a groundwater model using comprehensive data gathered during the period 2008–11 and then simulating the future groundwater level changes using rainfall from six GCMs [Institute of Numerica...

【 授权许可】

Unknown