Quantifying the impacts of climate change on groundwater in an unconfined aquifer that is strongly influenced by surface water

2008 ◽  
Vol 288 (1) ◽  
pp. 79-98
Author(s):  
J. Scibek ◽  
D. M. Allen ◽  
P. H. Whitfield
Keyword(s):  
Climate Change ◽  
Surface Water ◽  
Unconfined Aquifer ◽  
Impacts Of Climate Change

Forecasting impacts of climate change on Great Lakes surface water temperatures

2009 ◽  
Vol 35 (3) ◽  
pp. 454-463 ◽  
Author(s):  
Justin Trumpickas ◽  
Brian J. Shuter ◽  
Charles K. Minns
Keyword(s):  
Climate Change ◽  
Surface Water ◽  
Great Lakes ◽  
Impacts Of Climate Change

Projecting impacts of climate change on surface water temperatures of a large subalpine lake: Lake Tahoe, USA

2013 ◽  
Vol 118 (3-4) ◽  
pp. 841-855 ◽  
Author(s):  
Ka Lai Christine Ngai ◽  
Brian J. Shuter ◽  
Donald A. Jackson ◽  
Sudeep Chandra
Keyword(s):  
Climate Change ◽  
Surface Water ◽  
Lake Tahoe ◽  
Subalpine Lake ◽  
Impacts Of Climate Change

scholarly journals Simulated Impacts of Climate Change on Surface Water Yields over the Sondu Basin in Kenya

2016 ◽  
Vol 4 (8) ◽  
pp. 161-173
Author(s):  
Stephen Kibe Rwigi ◽  
Jeremiah N. Muthama ◽  
Alfred O. Opere ◽  
Franklin J. Opijah ◽  
Francis N. Gichuki
Keyword(s):  
Climate Change ◽  
Surface Water ◽  
River Basin ◽  
Assessment Tool ◽  
Swat Model ◽  
Eastern Africa ◽  
Fourth Generation ◽  
Climate Change Scenarios ◽  
Time Step ◽  
Impacts Of Climate Change

Potential impacts of climate change on surface water yields over the Sondu River basin in the western region of Kenya were analysed using the Soil and Water Assessment Tool (SWAT) model with climate input data obtained from the fourth generation coupled Ocean-Atmosphere European Community Hamburg Model (ECHAM4) using the Providing Regional Climates for Impacts Studies (PRECIS) model. Daily time step regional climate scenarios at a spatial grid resolution of 0.44Ëš over the Eastern Africa region were matched to the Sondu river basin and used to calibrate and validate the SWAT model.Analysis of historical and projected rainfall over the basin strongly indicated that the climate of the area will significantly change with wetter climates being experienced by 2030 and beyond. Projected monthly rainfall distribution shows increasing trends in the relatively dry DJF and SON seasons while showing decreasing trends in the relatively wet MAM and JJA seasons. Potential changes in water yields resulting from climate change were computed by comparing simulated yields under climate change scenarios with those simulated under baseline conditions. There was evidence of substantial increases in water yields ranging between 88% and 110% of the baseline yields by 2030 and 2050 respectively. Although simulated water yields are subject to further verification from observed values, this study has provided useful information about potential changes in water yields as a result of climate change over the Sondu River basin and in similar basins in this region.

scholarly journals Application of an Integrated SWAT–MODFLOW Model to Evaluate Potential Impacts of Climate Change and Water Withdrawals on Groundwater–Surface Water Interactions in West-Central Alberta

Water ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 110 ◽  
Author(s):  
David Chunn ◽  
Monireh Faramarzi ◽  
Brian Smerdon ◽  
Daniel Alessi
Keyword(s):  
Climate Change ◽  
Surface Water ◽  
General Circulation ◽  
River Flow ◽  
Groundwater Resources ◽  
Regional Scale ◽  
High Volume ◽  
General Circulation Models ◽  
Climate Projections ◽  
Impacts Of Climate Change

It has become imperative that surface and groundwater resources be managed as a holistic system. This study applies a coupled groundwater–surface water (GW–SW) model, SWAT–MODFLOW, to study the hydrogeological conditions and the potential impacts of climate change and groundwater withdrawals on GW–SW interactions at a regional scale in western Canada. Model components were calibrated and validated using monthly river flow and hydraulic head data for the 1986–2007 period. Downscaled climate projections from five General Circulation Models (GCMs), under the RCP 8.5, for the 2010–2034 period, were incorporated into the calibrated model. The results demonstrated that GW–SW exchange in the upstream areas had the most pronounced fluctuation between the wet and dry months under historical conditions. While climate change was revealed to have a negligible impact in the GW–SW exchange pattern for the 2010–2034 period, the addition of pumping 21 wells at a rate of 4680 m3/d per well to support hypothetical high-volume water use by the energy sector significantly impacted the exchange pattern. The results showed that the total average discharge into the rivers was only slightly reduced from 1294 m3/d to 1174 m3/d; however, localized flowrate differences varied from under 5 m3/d to over 3000 m3/d in 320 of the 405 river cells. The combined potential impact is that intensive groundwater use may have more immediate effects on river flow than those of climate change, which has important implications for water resources management and for energy supply in the future.

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