Remote Sensing 338

Goals: The goal of this lab was measure levels of spectral reflectance from various surface and materials. We also evaluated natural resources using remote sensing bands. We focused on Eau Claire and Chippewa counties for this lab. Methods: Part 1: Spectral Signature Analysis We used Erdas and ArcMap to process the data needed for this lab. Part 1  of this lab focused on measuring and plotting the spectral reflectances of 12 surface types. In order to identify different surface areas with more ease I reference the satellite image to google earth. We used the polygon tool in Erdas to draw an area within the desired surface. Then we used the signature editor tool to view the area's spectral signature mean plot. We collected all 12 surfaces and displayed their spectral reflectance signature mean plots together for further analysis (Figure 13). We analyzed vegetation and moisture content mostly. Figure 1. Spectral Signature Mean Plot for airport runways Figure 2. Spectra

Goals: The purpose of this lab was to develop skills in photogrammetry. The main goals of this lab were to  calculate scales,  measure areas and perimeters,  calculate the amount of relief displacement. Also a focus was to develop skills in  stereoscopy and finally  orthorectification of satellite images Methods Part 1: Scales, Measurements and Relief Displacements   To be able to  calculate the  scale of a vertical aerial image we c ompared the size of objects measured in the real world with the same objects measure on a photograph and used the scale to complete the mathematical equation. We also used an equation f inding the relationship between the camera lens focal length and elevation of the aircraft. We then created a polygon shape around the edge of the lake in order to calculate the water bodies' area and perimeter. Relief displacement which is the displacement of a part of the image was corrected by applying an equation and reprocessing the image.