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The North American Regional Climate Change Assessment Program (NARCCAP) is an international <br />program serving the high resolution climate scenario needs of the United States, Canada, and northern Mexi- <br />co, using regional climate models, coupled global climate models, and time -slice experiments. NARCCAP <br />modelers are running a set of regional climate models (RCMs) driven by a set of atmosphere -ocean general <br />circulation models (AOGCMs) over a domain covering the conterminous United States and most of Canada <br />for the current period 1971 and for the future period 2041 -2070 (50 km spatial resolution). The AOGCMs <br />have been forced with the SIZES A2 emissions scenario for the 21st century. <br />httl2://www.narccal2.ucar.edu/ <br />Data are restricted to approved users and served from the Earth System Grid. http: / /www earths,, emgrid.org/ <br />Statistically Downscaled WCRP CMIP3 Climate Projections are maintained in an archive by Santa Clara <br />University /Reclamation /Lawrence Livermore Laboratory. This archive contains fine - spatial resolution transla- <br />tions of 112 contemporary climate projections through 2099 over the contiguous United States. The original <br />projections are from the World Climate Research Programme's (WCRP's) Coupled Model Intercomparison <br />Project phase 3 (CMIP3) multi -model dataset, which was referenced in the IPCC 4th Assessment Report. <br />Downscaled variables include monthly Tmin, Tmax, and precipitation (12 km spatial resolution). Data <br />requests can be submitted through the website. http: / /gdo- dcl2.ucllnl.org /downscaled cmi123 projections/ <br />Climate Wizard is a user - friendly tool developed through collaboration between The Nature Conservancy, <br />University of Washington, and University of Southern Mississippi that allows users to access past changes in <br />climate, as well as project future changes in rainfall and precipitation in a given area based on available climate <br />models statistically downscaled to a 12 km2 resolution by Maurer et al. (2007). Downscaled variables include <br />temperature (as projected average or temperature departure) and precipitation (as projected average or predict- <br />ed percent change) by month, season, or yearly averages projected for mid and end of century. http: / /www. <br />climatewizard.org/ <br />Maurer, E. P., L. Brekke, T. Pruitt, and P. B. Duffy. 2007. Fine - resolution climate projections enhance <br />regional climate change impact studies. Fos Trans. AGU 88: 504. <br />Downscaled CCSM Projections for the U.S. are available from the NCAR's GIS Initiative Climate Change <br />Scenarios GIS data portal. These climate change projections were generated by the NCAR Community <br />Climate System Model (CCSM) for the 4th Assessment Report of the Intergovernmental Panel on Climate <br />Change. Projections were produced using a statistical downscaling method and include monthly mean <br />temperature and total precipitation (4.5 km resolution). Registration is required to download data. http: // <br />www.gisclimatechange.oEg/ <br />Appendix A 167 <br />