Watershed Boundary Dataset; 12-Digit Watersheds Dissolved to 8-Digit Watersheds

Description

This dataset is the digital hydrologic unit boundary layer for the 8-digit subwatershed boundaries for the conterminous United States. This dataset is intended to be used with the following two tabular dBase files: https://water.usgs.gov/lookup/getspatial?ds573_tillage_lu92e and https://water.usgs.gov/lookup/getspatial?ds573_tillage_lu01. The two tabular datasets contain the Tillage Practices in the Conterminous United States, 1989-2004---Datasets Aggregated by Watershed. This dataset and the two tabular datasets can be linked using the common attribute HUC8_N. Information about how the tabular data and geospatial data can be related are given in the data series report: https://pubs.usgs.gov/ds/ds573/ .The original dataset is the 12-digit Subwatershed boundaries (WBD_archive_17nov2009_9.2_file). The 12-digit boundaries were dissolved to 8-digit boundaries to be used with the two tabular .dbase data files containing the tillage practice data for the United States. ORIGINAL METADATA: This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of geo-referenced digital data and associated attributes created in accordance with the "Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3" (04/01/2009). http://www.ncgc.nrcs.usda.gov/products/datasets/watershed/index.html . Polygons are attributed with hydrologic unit codes for 4th level sub-basins, 5th level watersheds, 6th level subwatersheds, name, size, downstream hydrologic unit, type of watershed, non-contributing areas and flow modification.

Resources

Name Format Description Link
55 The metadata original format https://data.usgs.gov/datacatalog/metadata/USGS.3b40d2a8-6b7c-458d-95c1-0eb9930ed685.xml
55 Landing page for access to the data https://doi.org/10.5066/P9Q7JFMT

Tags

  • inland-waters
  • sub-region
  • basin
  • hydrologic-unit-code
  • usgs-3b40d2a8-6b7c-458d-95c1-0eb9930ed685
  • watershed-boundaries
  • united-states
  • huc
  • sub-basin
  • subwatershed
  • geoscientific-information
  • watershed-boundary-dataset
  • hydrologic-units
  • region
  • watershed
  • inlandwaters
  • boundaries
  • usa
  • united-states-of-america
  • huc12
  • wbd

Topics

Categories