Hydrological Modeling

Hydrologic models are useful tools for predicting the magnitude, distribution, and timing of complex and interconnected hydrologic processes.  The disadvantage of processed-based models such as SWAT is the amount of necessary data to accurately simulate processes within a watershed, are often insufficient or lacking on these scales.  WRRS’s pioneering research addresses these shortcomings by integrating satellite-based data sets (e.g. rainfall, temperature) to support field-based data.  WRRS research quantifies hydrologic fluxes in physically ungauged basins in arid environments and evaluates the uncertainty and accuracy of these models.  This work on satellite-based hydrologic models resulted in several publications, one of which was the most downloaded article for hydrology in ScienceDirect (Milewski et al., 2009).

Recent research examines the impacts and forecasts the effects of climate change on regional water resources using remote sensing and integrated hydrologic models.  WRRS works with researchers from Western Michigan University and University of Toledo to identify the climatic index most responsible for precipitation patterns in North Africa, forecast future changes in rainfall and temperature using IPCC data, and model changes in the water resources of North Africa.  This study produced one of the few models on climate change impacts on water resources in Africa.  More recently, the WRRS group constructed hydrologic models in Morocco, Turkey, and Ethiopia to quantify and proportion the climatic and anthropogenic impacts.  Lastly, we are developing new techniques to downscale GRACE measurements using MIKE-SHE in the Northern High Plains Aquifer.

Projects & Research

Hydrologic Impacts of Engineering Projects on the Tigris–Euphrates System and Its Marshland: http://wrrs.uga.edu/engineering-tigris/

A Remote Sensing Solution For Estimating Runoff and Recharge in Arid Environments: http://wrrs.uga.edu/rs-soltuons/

Characterization of Terrestrial Water Storage Using a Regional Integrated Hydrologic Model to Evaluate Water Storage Estimates from Grace Satellite in the Northern High Plains: http://wrrs.uga.edu/research-wondwosen/

Assessment of Satellite-based Precipitation Products in Hydrologic Modeling:A Case Study from the Oum Er Rbia Watershed, Morocco: http://wrrs.uga.edu/precip-oer/

The Characterization of Transmission Losses on Ephemeral Channels: Case Study in the Wadi Ferrain Basin Sinai Peninsula, Egypt: http://wrrs.uga.edu/research-durham/