Dataset - Catalog

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3 datasets found

Federal

Attributes for NHDPlus Catchments (Version 1.1)for the Conterminous United States: Contact Time, 2002

Department of the Interior —

This data set represents the average contact time, in units of days, compiled for every catchment of NHDPlus for the conterminous United States. Contact time, as...
- XML
- XML
Federal

Attributes for NHDPlus Catchments (Version 1.1): Level 3 Nutrient Ecoregions, 2002

Department of the Interior —

This data set represents the area of each level 3 nutrient ecoregion in square meters, compiled for every catchment of NHDPlus for the conterminous United States. The...
- XML
- XML
Federal

Attributes for NHDplus Catchments (Version 1.1) for the Conterminous United States: Population Density, 2000

Department of the Interior —

This data set represents the average population density, in number of people per square kilometer multiplied by 10 for the year 2000, compiled for every catchment of...
- XML
- XML

3 datasets found

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