Geography 338 Remote Sensing

Goals: The goals of this lab were to practice collecting spectral signatures from a variety of objects in an image of Eau Claire county, Wisconsin and the surrounding areas. The signatures were collected using the signature editor tool in Erdas Imagine software. Additionally, this lab focused on using band ratio to monitor the health of vegetation and soils. Methods Section 1: The first part of the lab focused on collecting and analyzing spectral signatures of  remotely sensed images. Signatures were collected for 12 different surfaces using the signature editor tool in Erdas imagine software. The signatures collected are as follows. 1. Standing Water 2. Moving Water 3. Deciduous Forest 5. Riparian Vegetation 6. Crops 7. Dry Soil (uncultivated) 8. Moist Soil (uncultivated) 9. Rock 10. Asphalt highway 11. Airport runway 12. Concrete Surface The signatures were then compiled on a graph and compared _______________________________________________________________...

Background:  The focus of this lab was to understand photogrammetry and to practice performing  photogrammetric tasks on images. More specifically, this lab focuses on understanding the calculations behind photographic scale, understanding stereoscopy and performing orthorectification   Methods Part 1: The first section of the lab focused on understanding photographic scale. Using various equations, I calculated the scale for two aerial images of Eau Claire county. For the first image I was given the ground distance and measured the photo distance on my screen using a ruler. The scale was then calculated using the equation in figure one below Figure 1: Equation where S=Scale, pd= photo distance and gd=ground distance For the second image, I was given the focal length of the camera, the elevation of the camera above sea level and the elevation of the terrain in the image. The scale was calculated using the equation seen below in figure 2, Figure 2 Equat...