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Color infrared aerial photography (1:15,860) taken in August of 1997 was
used as the starting point for the 1997 NPS Vegetation Survey. The
final vegetation map was derived through a coordinated process of
photo-interpretation, field reconnaissance, plot sampling, verification,
and accuracy assessment (Aerial Information Systems 2007). The minimum
mapping unit area was 0.5 hectare. A crosswalk from the original
vegetation classes used in the survey to the WHR classes was developed
by Bill Kuhn (NPS), in consultation with Dr. Jan van Wagtendonk (USGS)
and Dr. James Thorne (U.C. Davis).
Data Provided By:
National Park Service (Bill Kuhn)
Content date:
not specified
Citation:
Title: 1997 NPS Vegetation Survey Data Credits: National Park Service (Bill Kuhn) Online Linkages:
Other Citation Info: David Conklin. 2009. Simulating vegetation shifts and carbon cycling in Yosemite National Park. PhD thesis. Oregon State University.
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