Carneros Watershed: Historic Aerial Photography 1982

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Carneros Watershed: Historic Aerial Photography 1982


  • Original sources of data:
    • Aerial Photos: CIR NHAP 1982 [Obtained from USGS Global Visualization (GloVis)]
    • Hydrography: National Map hydrography data set
    • Roads: National Map transportation data set
    • Watershed boundary: Watershed analysis in ArcMap by Fred Watson based on National Map 1/3 arc-second elevation data
  • Data analysis: Shaelyn Hession (Aerial Imagery); Fred Watson (watershed boundary)
  • Map produced by: Shaelyn Hession
  • Map produced using: ArcMap
  • Coordinate system: Geographic Coordinate System - GCS_North_American_1983
  • Datum: D_North_American_1983

Processing Steps

  • Images were obtained from [GloVis]
  • Once the images were imported into ArcMap, they were georeferenced by hand using distinct features in the landscape
  • After being placed in approximately the appropriate location, the images were rectified and the borders of images were clipped using the "Extract by Mask" tool and a polygon shapefile
  • The extracted images were added to the ArcMap project and used to create the final product

Alternate versions

  • None