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Lower Rio Puerco mapped geomorphic features (shapefiles), 1935, 1950s,...
Geomorphic features mapped from historical aerial photographs (1935, 1950s, 1970s, and 1996), satellite imagery (November 2006), and digital aerial imagery (Standard Imagery... -
Lower Rio Puerco 1970s georeferenced aerial photographs
The 1970s images were obtained as digital scans on CDs, with no metadata. Source information for the original aerial photographs is not available. Original photo scale was about... -
Historic shoreline positions for Rincon, Puerto Rico 1936-2006 (shorelines.shp)
The 8 km of shoreline from Punta Higüero to Punta Cadena in Rincón, Puerto Rico is experiencing long-term coastal erosion. This study documents historical shoreline changes at... -
Historic shoreline positions for Rincon, Puerto Rico 1936-2006 (shorelines.shp)
The 8 km of shoreline from Punta Higüero to Punta Cadena in Rincón, Puerto Rico is experiencing long-term coastal erosion. This study documents historical shoreline changes at... -
Lower Rio Puerco mapped geomorphic features (shapefiles), 1935, 1950s,...
Geomorphic features mapped from historical aerial photographs (1935, 1950s, 1970s, and 1996), satellite imagery (November 2006), and digital aerial imagery (Standard Imagery... -
Lower Rio Puerco 1996 georeferenced NAPP photo segments
1996 georeferenced aerial photographs cover the lower Rio Puerco from the confluence with the Rio San Jose 70 km down-valley to the confluence with the Rio Grande. The images... -
Lower Rio Puerco 1935 georeferenced aerial photographs
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... -
Lower Rio Puerco 1950s georeferenced aerial photographs
The 1950s images were downloaded from Earth Explorer as medium-resolution scans of aerial photographs, with pixel size ranging from 1.33 to 2.32 m. Original photo scales were... -
Coastal Wetland Vegetation Analysis (Metzger Marsh)
Coastal wetlands of the Great Lakes are subject to extreme fluctuations of water levels and to erosion from wave action during storms. Both processes are natural, and under... -
Lower Rio Puerco 1970s georeferenced aerial photographs
The 1970s images were obtained as digital scans on CDs, with no metadata. Source information for the original aerial photographs is not available. Original photo scale was about... -
Lower Rio Puerco geospatial data, 1935 - 2014
A long-term study of the geomorphic history of the lower Rio Puerco arroyo in north-central New Mexico included the collection of high-precision (Real-time kinematic) GPS survey... -
Lower Rio Puerco 1996 georeferenced NAPP photo segments
1996 georeferenced aerial photographs cover the lower Rio Puerco from the confluence with the Rio San Jose 70 km down-valley to the confluence with the Rio Grande. The images... -
Lower Rio Puerco 1996 georeferenced NAPP photo segments
1996 georeferenced aerial photographs cover the lower Rio Puerco from the confluence with the Rio San Jose 70 km down-valley to the confluence with the Rio Grande. The images... -
Aerial photographs from the Yampa and Little Snake Rivers in northwest...
Aerial photographs of the Yampa and Little Snake Rivers acquired in 1954 and 1961 were used to examine channel changes occurring along these two rivers during this time period.... -
Greater Philadelphia GeoHistory Network
The Greater Philadelphia GeoHistory Network contains geographic materials connected to the history of Pennsylvania, New Jersey, and the City of Philadelphia. The available...