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Scientific Investigations Report 2012–5017


Geomorphic Setting, Aquatic Habitat, and Water-Quality Conditions of the Molalla River, Oregon, 2009–10


Table 7. Aerial imagery used in spatial analysis of the Molalla River, Oregon, flood plain.


[Abbreviations: BW, black and white; USDA, U.S. Department of Agriculture, USGS, U.S. Geological Survey; DOQ, digital orthophotograph quads; NAIP, National Agriculture Imagery Program]


Year Type of imagery Imagery source Image dates
1936 Aerial photograph (BW) 1936 U.S. Army Corps of Engineers Apr. 29, 1936
1948 Aerial photograph (BW) 1948 Production and 
Marketing Administration (PMA), USDA July 13, 1948
1964 Aerial photograph (BW) 1964 Northern Lights Sept. 23–24 and 27, 1964
1970 Aerial photograph (BW) 1970 Agricultural Stabilization and 
Conservation Service (ASCS), USDA June 25, 1970
1980 Aerial photograph (BW) 1980 Agricultural Stabilization and 
Conservation Service (ASCS), USDA April 30 and May 4, 1980
1988 Aerial photograph (BW) 1988 Northern Lights June 24, July 9, and Sept. 3, 1988
1994 Orthophotograph (BW) 1995 USGS DOQ June 20, 1994
2000 Orthophotograph (BW) 2000 USGS DOQ July 24–Aug 5, 2000
2005 Orthophotograph (color) 2005 NAIP Aug. 3–4, 2005
2009 Orthophotograph (color) 2009 NAIP June 23, 2009

First posted February 29, 2012

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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