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National Severe Storms Laboratory Environmental Protection Agency

Elevation Derivatives for National Applications (EDNA)

EDNA Stage 1 Data Layers

Filled Digital Elevation Model (10K)

Filled Digital Elevation Model

File Type:   Grid -Integer
Valid values:    Elevation
Description: To create this grid, an algorithm is used to locate and fill all depressions or sinks where there is no flow from pixel to pixel within a hydrologic unit. During this processing step, efforts were made to maintain natural sink features.

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Page Last Modified: May 25, 2005