Abstract
The Inclusion of Historical Data in the National Elevation Dataset Track: Spatial Data Infrastructure Author(s): Michael Oimoen This paper will explore the possibility of adding a temporal component to the National Elevation Dataset (NED). While new elevation models are most often acquired with an eye toward improving data resolution and quality, they may also describe an altered surface. In areas where the accuracy of historic data is sufficiently high, computing the differences between two or more datasets will reveal the evolution of the landscape. The example of Mt. St. Helens will be presented in detail. Michael Oimoen SAIC-USGS EROS Data Center 47914 252nd St Sioux Falls , SD 57198 US Phone: 605-594-6033 E-mail: oimoen@usgs.gov |
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