Im making a map using ArcGIS and I need help with Step #2 please, and if posible
ID: 117516 • Letter: I
Question
Im making a map using ArcGIS and I need help with Step #2 please, and if posible may I have an explainataion so i can do it myslef, thnaks.
Lab 10: Vector Data Analysis
Introduction to GIS (GEOG and GISc 474)
Geographic Problem: What area in and around Sterling, Colorado, offers the best chance for residents to see a Red Fox?
To accomplish this task, students will need to create a number of geographic layers and apply vector data analysis techniques to arrive at the resulting area. Geographic layers extending beyond Logan County need to be clipped to Logan County, Colorado (Sterling, Colorado, is within Logan County).
Step 1: Create Geographic Layers
Use TIGER geographic data from the U.S. Census Bureau (2010 shapefiles) or data provided with Lab 10 (if you use the Lab 10 data provided, you will not need to unzip every individual file) to create the following layers (Note: Sterling, Colorado, is in Logan County):
1. Places in Colorado
If this file shows towns across Colorado, create a shapefile of Sterling (call your new shapefile Sterling Colorado). Save as an appropriate projection/geographic coordinate system.
2. Urban Areas
This shapefile shows urban areas across the United States. Narrow the scope down to just the urban area of Sterling. Create a shapefile of the Sterling, Colorado, metro area (call your new shapefile Sterling Colorado Metro Area).
3. Primary and Secondary Roads
Create a shapefile of primary and secondary roads in Logan County, Colorado. Unzip the file and rename it Colorado Roads. You will also need to download a Logan County boundary from TIGER to clip the roads (Logan County is the county of interest).
Go ahead and clip the roads so they only show up in Logan County, Colorado.
4. Streams within Logan County, Colorado
The stream layer will called Linear Hydrography in the TIGER website. Unzip the file and rename it Logan County Streams.
(layer download continued on next page) 5. Parks within Sterling, Colorado (Look up within Earth Explorer)
There are many parks in Sterling, Colorado. Create a point shapefile of these parks:
Pioneer Park
Columbine Park
Propst Park
Cheairs Park
Call your permanent shapefile Sterling Parks.
Please ensure all layers are within Logan County or have been clipped to only appear in Logan County.
Step 2: Create Buffers to Isolate Areas and Create New Shapefiles
First, make sure your projection/geographic coordinate system settings for each layer is adequate for GIS analysis (need a projection because you will be measuring area later).
Please set the following buffers (under Analysis Tools):
1. Parks: within 2 miles (3219 meters)
2. Roads: not within 0.5 mile (805 meters)
3. Streams: within 1 mile (1609 meters)
4. Red foxes exist best within the urban area but not within the City of Sterling.
5. Calculate the remaining area hospitable for the Red Fox.
6. Create a map of the habitat area best for Red Foxes in and around Sterling, Colorado
To apply these criteria, you will need to use Vector Data Analysis tools such as Clip, Buffer, and Erase found within ArcToolbox (under Analysis Tools). Other tools may need to be used as well. It may be advantageous to map out the criteria needed using a flow chart and then applying tools to get at determining the habitat area for Red Foxes.
Step 3: Measuring Area
Measure the area meeting all criteria in Step 2. To measure area, use Calculate Areas under Spatial Statistics Tools and Utilities in ArcToolbox. You must ensure your geographic layer is set as a projection prior to using the calculate areas tool. Step 4: Create a Map
Create a map of the habitat area best for red foxes around Sterling, Colorado. Include the Red Fox habitat area as a text box on your map (square miles please). Please turn this map in by the due date. (Due Date: Sunday, November 5, 2017, 11:59 pm CST)
Explanation / Answer
You can do it by ArcGIS. There is a tool to calculate area by drawing a polygon . so you can use it.