INTRODUCTION
This project is a demonstration of how to analyze climate projections from a Global Climate Model (GCM) in a Geographic Information System (GIS). This demonstration projects uses climate datasets generated by the Community Climate System Model (CCSM) for the IPCC 4th Assessment Report and distributed through the NCAR GIS Initiative Climate Change Scenarios portal in a GIS format. In this demonstration, we compare model output of a present day climate with future climate projections. Many atmospheric and land variables are available from the CCSM and the GIS Climate Change portal. Here, we demonstrate GIS-based analysis of the Northern hemisphere summer months’ temperature anomaly in 2030 with respect to the average summer temperatures of present-day climate. The demonstration is performed using ESRI ArcGIS software with an ArcInfo license.