2m Digital Surface 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) 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 is
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.