Skip to main content
U.S. flag

An official website of the United States government

Elevation derivatives for national applications

January 1, 2005

The Elevation Derivatives for National Applications (EDNA) project is a multi-agency effort to develop standard topographically derived layers for use in hydrologic and environmental modeling. The EDNA takes advantage of the seamless and filtered characteristics for the National Elevation Dataset (NED) to create a hydrologically conditioned Digital Elevation Model (DEM) useful for modeling applications. The goals of the project are to create a hydrologically conditioned DEM and systematically extract a set of standard derivatives that can be used to facilitate data integration with other U.S. Geological Survey (USGS) framework data sets such as the National Hydrography Dataset (NHD) and the Watershed Boundaries Dataset (WBD).

Publication Year 2005
Title Elevation derivatives for national applications
DOI 10.3133/fs20053049
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Fact Sheet
Series Number 2005-3049
Index ID fs20053049
Record Source USGS Publications Warehouse
USGS Organization Earth Resources Observation and Science (EROS) Center