Intro to GIS: Week 11 – Vector Analysis

     This week’s assignment introduces modeling tools in ArcGIS. Two tools in particular, the buffer and overlay tools, were used to alter feature classes to display a select portion of data. Additionally, the lab introduces script creation in ArcPy.

     The goal of this exercise is to generate potential camping sites by combining the use of buffers and overlays. The possible campground sites must meet the following criteria simultaneously: must be within 150 meters of a lake, within 500 meters of a river, and within 300 meters of a road. They must also be located outside of conservation areas. Variable distance buffers were applied to the water feature layer to generate the specific buffer regions. Then a set buffer was applied to the roads layer. Lastly, the Union and Erase tools were used to prepare the final zones for potential camp sites. Other skills used included practicing with ArcPy to quickly apply multiple buffer distances to the same layer, the Select by Attributes tool to select features that met the zonal criteria, and converting a layer from multipart to singlepart. 

A map of prospective campground sites chosen to meet specific criteria.
An inset map is included for geographic reference.

     My map shows possible campground sites that fall within (and exclude) the previously mentioned criteria. These requirements are also noted on the map. An inset map with an extent indicator is included to provide a geographic reference.