Lab 11 Geoprocessing

Lab 11 Geoprocessing - 44:005 Foundations of GIS Lab 11...

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44:005 Foundations of GIS Lab 11: Geoprocessing In previous labs we have used the tools from ArcToolbox to manipulate data. These tools can be used on most data types. However some tools may require specific data types (raster, shapefile, coverage). When conducting an analysis using GIS these tools can be used together to make processing data run faster without having to repeat the same steps. Geoprocessing allows us to execute a series of operations on geographic data in order to create new datasets. Warning: A lot of files will be created over the course of this lab. Use sensible file names and note them down in this handout to avoid confusion. If you run out of space in your student folder, you can delete mxd files from the beginning of the semester as they take up the most space. This lab will introduce you to some geoprocessing tools as well as touch back on tools we have used in previous labs. You will be finding suitable areas for the silver-haired bat in the state of Iowa using datasets related to habitat characteristics. Your final output layer will show optimal locations for the species using map overly techniques. Overview of the exercise… Preprocess layers Clip layers Intersect layers Create a buffer around rivers Automate this process using Model Builder Description of silver-hair bat habitat: For this lab you will be provided with shapefiles relating to the characteristics of the silver-hair bat's habitat. The bat is known to live in hollow trees and near caves so you will have layers for karst areas and forests. The bat's diet consists of insects that live near water so you will also be working with a rivers layer. 44:005 Lab 11 Geoprocessing Pg 1 of 10
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1. Copy the Lab 11 data to your student folder. Add the karst, designated_rivers, county, and forest_stand_boundaries layers to a new ArcMap document. Load the Spatial Analyst extension and toolbar 2. Load Spatial Analyst extension: Customize Extensions Check Spatial Analyst. We will be using the Dissolve tool once again to create a study area for the analysis. The first step of this is to make a new layer from a selection of counties from the county layer. For this lab you will be working in the counties shown below: You will select the counties shown in green in northeast Iowa (Allamakee, Winneshiek, Clayton, Fayette, Dubuque, Delaware, Buchanan, Jackson, Jones, and Clinton). 3.
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Lab 11 Geoprocessing - 44:005 Foundations of GIS Lab 11...

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