This is a user manual for the geospatial analysis tool kit developed by Argonne National Laboratory to access and analyze regional-scale climate change datasets produced as a part of a project funded by SERDP. This document serves as a companion to the two other reports produced for the SERDP-funded project RC-2242, Climate Change Impacts at the Department of Defense Installations. The two reports generated for the project are (1) Climate Change Impacts to Defense installation: Final Report (Kotamarthi et al., 2016b) and (2) User Manual for Climate Model Outputs (Kotamarthi et al., 2016a). The tool kit described herein serves as an access point for a selected portion of the nearly 600 TB of data produced for the project in a format that is more familiar to users in the U.S. Department of Defense community. This large repository of climate model results for North America (Wang and Kotamarthi 2013, 2014, 2015) is stored in Network Common Data Form (NetCDF) (Unidata 2017).