GEOG 487
Environmental Challenges in Spatial Data Science

Lesson Data


Lesson Data

This section provides links to download the Lesson 8 data, along with reference information about each dataset (metadata). Briefly review the information below so you have a general idea of the data we will use in this lesson.

For this lesson, you will be provided with all of the data in the Lesson 8 Data zip file. All of these data were created by your own work organization. While receiving data from an in-house source may seem like a blessing, it often comes without some of the typical information you receive from well-known data clearinghouses. Two of the most common shortcomings are a lack of metadata and projection information. Therefore, it may be difficult to determine the source of the data, the attribute definitions, the scale of the data, and the coordinate system and datum. As distressing as this may sound, there will generally be someone in your office who can provide some reliable information pertaining to the data.

Lesson 8 Data Download:

Note: You should not complete this activity until you have read through all of the pages in Lesson 8. See the Lesson 8 Checklist for further information.

Create a new folder in your GEOG487 folder called "L8." Download a zip file of the Lesson 8 Data and save it in your "L8" folder. Extract the zip file and view the contents. Information about all datasets used in the lesson is provided below:


Publicly Available Data:

Base Map:

  • Source: Esri Resource Center (see Lesson 2 for more details about this site).
  • Service Names: OpenStreetMap.
  • Within ArcGIS, go to Map tab, Layer group > Basemap.

Private Data (Located Inside the L8 Data Folder):

Spatial Reference Parameters:

  • Spatial Reference: NAD_1983_Albers
  • Linear Unit: Meter (1.000000)
  • Angular Unit: Degree (0.017453292519943295)
  • False Easting: 0
  • False Northing: 0
  • Central Meridian: -78
  • Standard Parallel 1: 40
  • Standard Parallel 2: 42
  • Latitude of Origin: 39
  • Datum: D_North_American_1983


  • LakeRaystown:
    • Data Type: Polygon Shapefile
    • Description: Boundary of the Lake Raystown Watershed.
  • Elev:
    • Data Type: Raster (Grid)
    • Description: Elevation in meters.
  • Geology:
    • Data Type: Polygon Shapefile
    • Description: Surface geology (i.e., geologic formations).
  • Soil:
    • Data Type: Polygon Shapefile
    • Description:Generalized soil mapping units.
  • Streams_buffer:
    • Data Type: Polygon Shapefile
    • Description: 300 meter buffer of streams.
  • D:
    • Data Type: Raster (Grid)
    • Description: DRASTIC ratings based on the depth to groundwater (D).
  • R:
    • Data Type: Raster (Grid)
    • Description: DRASTIC ratings based on recharge (R).
  • Landgrid:
    • Data Type: Raster (Grid)
    • Description: Land use classified from satellite imagery.
      • 2 = Developed
      • 3 = Woodland
      • 4 = Water
      • 5 = Mined/Disturbed
      • 7 = Agriculture