DRAPP02 Orthophotography from 2002, Niwot Ridge LTER Project Area, Colorado

An orthoimage is remotely sensed image data in which displacement of features in
the image caused by terrain relief and sensor orientation has been mathematically
removed. Orthoimagery combines the image characteristics of a photograph with the
geometric qualities of a map. For this dataset, 1-foot nominal pixel resolution
natural color aerial photography was contracted by USGS for the greater Denver
metropolitan area with supplemental areas of interest added by the Denver Regional
Council of Governments (DRCOG). Digital orthimages were obtained through a
cooperative agreement between the USGS and DRCOG. Orthoimages were created by
contrator in the state plane coordinate system for DRCOG. Reprojection to Universal
Transverse Mercator (UTM) projection was done by contractor for USGS. The USGS
resampled UTM orthoimages to a 0.3-meter pixel resolution 1500 X 1500-meter ground
coverage footprint. There is no image overlap between adjacent files. The naming
convention is based on the U.S. National Grid (USNG), taking the coordinates of the
SW corner of the orthoimage. NOTE: This EML metadata file does not contain important
geospatial data processing information. Before using any NWT LTER geospatial data
read the arcgis metadata XML file in either ISO or FGDC compliant format, using
ArcGIS software (ArcCatalog > description), or by viewing the .xml file provided
with the geospatial dataset.