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Changes in groundwater recharge under projected climate in the upper Colorado River basin

August 3, 2016

Understanding groundwater-budget components, particularly groundwater recharge, is important to sustainably manage both groundwater and surface water supplies in the Colorado River basin now and in the future. This study quantifies projected changes in upper Colorado River basin (UCRB) groundwater recharge from recent historical (1950–2015) through future (2016–2099) time periods, using a distributed-parameter groundwater recharge model with downscaled climate data from 97 Coupled Model Intercomparison Project Phase 5 climate projections. Simulated future groundwater recharge in the UCRB is generally expected to be greater than the historical average in most decades. Increases in groundwater recharge in the UCRB are a consequence of projected increases in precipitation, offsetting reductions in recharge that would result from projected increased temperatures.

Citation Information

Publication Year 2016
Title Changes in groundwater recharge under projected climate in the upper Colorado River basin
DOI 10.1002/2016GL069714
Authors Fred D. Tillman, Subhrendu Gangopadhyay, Tom Pruitt
Publication Type Article
Publication Subtype Journal Article
Series Title Geophysical Research Letters
Index ID 70175280
Record Source USGS Publications Warehouse
USGS Organization Arizona Water Science Center