Class Plan (06/23)

Posted by mapz on 12:13 PM

New Sources:


New Procedures:
  • Select by Location
  • Buffers

Analyze 2-Mile Area Around UT Arlington: What is the median Household Income (2010 estimates) and how many wells are within 2 miles of UT Arlington?
  1. Download 2010 estimates by block group from SimplyMap.
    1. This is a proprietary database, limited to 10 simultaneous users.
      1. Prepared table
      2. Walk-through video
    2. Clean SimplyMap table
    3. Add to ArcMap
  2. Download 2000 block group shapefile from TIGER
    1. Add to ArcMap
  3. Join SimplyMap table to TIGER shapefile. (See a problem here?)
    1. Fix field type in shapefile
      1. Open shapefile attribute table
      2. Click 'Table Options' button on top left corner, and select 'Add Field'
      3. Give name (following rules)
      4. Type: Double
      5. OK
      6. Scroll to far right of table and you will see your new field
      7. Right click your new field and select 'Field Calculator'
      8. Double-click 'BKGPIDFP00' so it appears in the text area box below.
      9. OK
      10. Now Join
    2. Export to make join permanent
  4. Download statewide well shapefile from Texas Water Development Board
    1. Add to ArcMap
  5. Create UT Arlington point shapefile
    1. Click the 'Find' button (binoculars)
    2. In the 'Locations' tab, select the U.S. Streets Geocode Service
    3. Enter: 701 S. Nedderman Drive, Arlington, TX 76019
    4. Click 'Find'
    5. Right-click top result and select 'Add Point'
    6. Close 'Find' dialog box
    7. Right-click 'Layers' and select 'Convert Graphics to Features'
    8. Specify a suitable location/name and OK
  6. Create a 1-mile buffer (radius) around UT Arlington
    1. ArcToolbox/Analysis Tools/Proximity/Buffer
  7. Tested exercise before class (not typical) and the spatial join against the well data took a long time due to the nigh number of wells in Texas. It will run faster if we clip the well data to Tarrant County first.
    1. At top of screen, Selection/Select by Location
    2. Select all features from [XYwelldata]
    3. Source Layer: BG Layer
    4. OK
    5. Export
  8. Spatial Joins