GIS 4035: Remote Sensing; Week 8: Thermal and Multispectral Analysis

This week's assignment was designed to focus on being able to compose a series of different raster bands into a composite image utilizing both ERDAS Imagine and ArcMap.  A couple different images were provided by UWF to exercise these skills and to ultimately come up with a user derived analysis of some particular feature.  

The map shown below is a thermal overview of Florida's Emerald Coast. The image, provided by UWF, dates back to February of 2011.  The main map is a True Color image displaying an overview of where the two inset maps are located.  The central feature of the two inset images is a large oblong clearing.  A clearing is one of many available military firing ranges located along the panhandle.  The main objective of this assignment was to try and differentiate the area of interest from it's surroundings using thermal imagery.  The purple image, located in the top right, comes from a unique combination of infrared both short wave and thermal bands to provide brightness to the "hottest" areas.  These are areas that heat up and/or emit the best.  You can see that there is a very similar spectral pattern all along the island to the south.  Santa Rosa Island is made up of white sand beaches and dunes and appears as the only feature that might be spectrally similar to the artillery ranges. The color inset, located on the bottom right, is another infrared look at the area, but rather a grayscale color has been used to help give characteristic spectral pattern to the other images.