Hydrologic effects of urbanization and climate change on the Flint River Basin, Georgia

Earth Interactions
By: , and 

Links

Abstract

The potential effects of long-term urbanization and climate change on the freshwater resources of the Flint River basin were examined by using the Precipitation-Runoff Modeling System (PRMS). PRMS is a deterministic, distributed-parameter watershed model developed to evaluate the effects of various combinations of precipitation, temperature, and land cover on streamflow and multiple intermediate hydrologic states. Precipitation and temperature output from five general circulation models (GCMs) using one current and three future climate-change scenarios were statistically downscaled for input into PRMS. Projections of urbanization through 2050 derived for the Flint River basin by the Forecasting Scenarios of Future Land-Cover (FORE-SCE) land-cover change model were also used as input to PRMS. Comparison of the central tendency of streamflow simulated based on the three climate-change scenarios showed a slight decrease in overall streamflow relative to simulations under current conditions, mostly caused by decreases in the surface- runoff and groundwater components. The addition of information about forecasted urbanization of land surfaces to the hydrologic simulation mitigated the decreases in streamflow, mainly by increasing surface runoff.

Study Area

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Hydrologic effects of urbanization and climate change on the Flint River Basin, Georgia
Series title Earth Interactions
DOI 10.1175/2010EI369.1
Volume 15
Issue 20
Year Published 2011
Language English
Publisher American Meteorological Society
Publisher location Boston, MA
Contributing office(s) National Research Program - Central Branch
Description 25 p.
Country United States
State Georgia
Other Geospatial Flint River Basin
Online Only (Y/N) N
Additional Online Files (Y/N) N