Environment Quick News   
A Monthly Report on EPRI's Environmental Research Programs November 2009
WATER AND ECOSYSTEMS
Program 55: Strategic Water Issues: TMDLs, Availability, Climate

Linking Advanced Air and Watershed Models
An EPRI study has developed a linkage for transferring data on concentrations of gases and particles in air and rain from EPRI’s advanced 3-D Eulerian model (AMSTERDAM) to its mechanistic watershed model (WARMF).  The linkage also transfers data from a meteorological model to the watershed model.  The research is described in a poster, “Linking two advanced air and watershed models,” presented at the October 6–8 National Atmospheric Deposition Program Annual Meeting and Scientific Symposium.  Inherent differences in air and watershed models, plus sparse observational data, often lead to simplistic linkages that do not make use of fine-resolution model outputs.  This improved linkage overcomes some of these limitations and will be especially useful for source contribution and critical load analyses.  For more information, contact Eladio Knipping, (202) 293-2691, eknippin@epri.com or Robert Goldstein, (650) 855-2154, rogoldst@epri.com.