Airborne and ground-based data have been taken to estimate the site's BRDF. Used for a variety of calibration and cross-calibration studies. Background aeolian dune system at a scale resolved by Hyperion allowing geometric studies as well as spectral calibration studies. Not easy to access on the ground. AERONET site. (Source: CSIRO Earth Observation Centre Web site, http://www.eoc.csiro.au/hswww/Hyperion.htm#Calibration%20&%20Validation).
Google Earth: Not spatially homogeneous in intensity and color at detailed and intermediate scales, but reasonably spatially homogeneous in its heterogeneity when averaging over 15 km by 15 km.
U.S. Department of the Interior |
U.S. Geological Survey
