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National Severe Storms Laboratory Environmental Protection Agency

Elevation Derivatives for National Applications (EDNA)

EDNA Stage 1 Data Layers

Sinks (9K)


File Type:    Vector (polygon)
Description: Defines the extent of each depression filled during creation of the filled digital elevation model. Each cell within a depression is assigned a unique value. Upland cells are assigned a value of "no data." The sinks are polygons representing filled areas in the digital elevation model that are larger than 1000 contiguous pixels or more.

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Page Last Modified: May 25, 2005