Lower Rio Puerco 1935 georeferenced aerial photographs
Dates
Publication Date
2016
Time Period
1935
Citation
Griffin, E.R., 2016, Lower Rio Puerco geospatial data, 1935 – 2014: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F72N50CM.
Summary
The 1935 images were obtained as digitally scanned versions of aerial photographs acquired by the U.S. Department of Agriculture at a scale of 1:31,680. The actual date of image acquisition is not known. The images were previously scanned at 600 dpi to produce a nominal pixel size of 1.28 m (Friedman et al., 2015). The images were registered and rectified using identifiable common points from the 1996 DOQQs. See description of positional accuracy below. Data derived from features mapped from the 1935 images were presented in: Friedman, J.M., Vincent, K.R., Griffin, E.R., Scott, M.L., Shafroth, P.B., and Auble, G.T., 2015, Processes of arroyo filling in northern New Mexico, USA, GSA Bulletin, 127(3/4), 621-640. doi: 10.1130/B31046.1
Summary
The 1935 images were obtained as digitally scanned versions of aerial photographs acquired by the U.S. Department of Agriculture at a scale of 1:31,680. The actual date of image acquisition is not known. The images were previously scanned at 600 dpi to produce a nominal pixel size of 1.28 m (Friedman et al., 2015). The images were registered and rectified using identifiable common points from the 1996 DOQQs. See description of positional accuracy below. Data derived from features mapped from the 1935 images were presented in:
Friedman, J.M., Vincent, K.R., Griffin, E.R., Scott, M.L., Shafroth, P.B., and Auble, G.T., 2015, Processes of arroyo filling in northern New Mexico, USA, GSA Bulletin, 127(3/4), 621-640. doi: 10.1130/B31046.1
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1935_RPimages_tif.xml Original FGDC Metadata
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13.85 KB
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1935_imagery.zip “1935 georeferenced images”
60.49 MB
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Purpose
This image set was used to map Rio Puerco arroyo geomorphic features in 1935. The mapped features were used to compute average channel and arroyo widths and to determine shrub canopy cover across the arroyo bottom in selected segments. Results from mapping were used to determine geomorphic change in the arroyo through time since 1935.
