History of regional climate modeling Pioneering work Need for higher resolution (terrain and land-use images w/different res) Land-Sea Mask Terrain Resolution Land Surface Cover Snow Cover Simulation US Grid for Regional Climate Model Results First Regional Model Impacts Workshop Limitations of regional climate models

Background on regional climate model simulations Domain and variables Horizontal and Vertical Grid Variables Archived Runs based on regional climate model simulations Ten Year Output Robert Johnson Runs based on results of HadCM2 (procedures for assessing impact of climate change) Contemporary climate Future scenario climate