2m Digital Surface Shaded Relief Model From Photogrammetric Data, Niwot Ridge LTER Project Area, Colorado

Citation: Manley, W.F.,
Parrish, E.G., and Lestak, L.R., 2009, High-Resolution Orthorectified
Imagery and Digital Elevation Models for Study of Environmental Change at
Niwot Ridge and Green Lakes Valley, Colorado: Niwot Ridge LTER, INSTAAR,
University of Colorado at Boulder, digital media. This dataset is a Digital Surface Model (DSM) shaded relief for the Niwot Ridge
Long Term Ecological Research (LTER) project area at 2 m resolution. The DSM is
derived from the first reflective surface that was created from 12 micron digital
stereo aerial photography. Elevation points were automatically filtered to represent
bare earth conditions and then interpolated to a 2 meter raster dataset. A shaded
relief model was then generated. The DSM and shaded relief model covers a total area
of 98 km2 and is available in Environmental Systems Research Institute's (ESRI's)
GRID format for a total dataset size of 125 MB. They share a UTM zone 13 projection,
NAD83 horizontal datum and NAVD88 vertical datum, with FGDC-compliant metadata. The
DSM products are available through an unrestricted public license, and can be
obtained online or on DVD by request (see Distributor contact information below).
Imagery available in this series includes orthorectified aerial photography for
1953, 1972, 1985, 1990, 1999, 2000, 2002, 2004, 2006 and 2008. Together, the digital
elevation models and imagery will be of interest to land managers, scientists, and
others for observation and analysis of natural features and ecosystems. 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.