GIS 337 Lab 3 - Delineating Watersheds
Goal and Background: The goal of this lab was to examine and learn how to delineate watersheds in order to understand the flow of the water, and in to further prevent pollution from entering the watershed. By knowing the boundaries of a watershed, hydrologist professionals can understand how to protect and sustain the water quality in an area where water enters. Methods: Part 1: Data Processing To begin the lab, data about the Adirondack Park from upper New York State was unzipped as well as data from a hydrology shapefile from Cornell University. In addition to that data, an digital elevation model (DEM North America) was used from ArcGIS online. Using analysis tools, a 20 km buffer was created around the park boundary later so that the data would be presented more clearly. The hydrology shapefile was projected to match the coordinate system of the park boundary layer, which happened to be North America NAD 1983 projection. Raster clipping was then...