Checking for non-preferred file/folder path names (may take a long time depending on the number of files/folders) ...

National Water Model Assimilation Gage Basin Boundaries


Authors:
Owners: This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type: Resource
Storage: The size of this resource is 286.7 MB
Created: Aug 13, 2025 at 6:22 p.m. (UTC)
Last updated: Aug 14, 2025 at 8:31 p.m. (UTC)
Published date: Aug 14, 2025 at 8:32 p.m. (UTC)
DOI: 10.4211/hs.b26b7c34c2e94d9087119ae1506b3e11
Citation: See how to cite this resource
Sharing Status: Published
Views: 29
Downloads: 0
+1 Votes: 1 other +1 this
Comments: No comments (yet)

Abstract

This resource includes a single GeoPackage containing upstream basin boundaries for 8,175 USGS streamflow gages used for data assimilation by v3.0 of the National Water Model. The file contains vector geometry and a single attribute ("provider_id") that indicates the associated USGS site code. Basin geometry is important for estimating drainage area and deriving areal statistics, such as mean areal precipitation. The list of included USGS gages was drawn from the National Water Model RouteLink files located here: https://www.nco.ncep.noaa.gov/pmb/codes/nwprod

Note that these basin boundaries are unofficial and may deviate significantly from official USGS estimates of contributing drainage area. These basin boundaries were derived by accumulating NHDv2 Catchments using the HyRiver suite of Python tools. See the "Drainage Area Delineation" example for more details: https://docs.hyriver.io/examples/notebooks/nwis_catchments.html

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Continental United States
North Latitude
52.8801°
East Longitude
-67.2384°
South Latitude
24.8397°
West Longitude
-124.6607°

Temporal

Start Date:
End Date:

Content

README.txt

This resource includes a single GeoPackage containing upstream basin boundaries for 8,175 USGS streamflow gages used for data assimilation by v3.0 of the National Water Model. The file contains vector geometry and a single attribute ("provider_id") that indicates the associated USGS site code. Basin geometry is important for estimating drainage area and deriving areal statistics, such as mean areal precipitation. The list of included USGS gages was drawn from the National Water Model RouteLink files located here: https://www.nco.ncep.noaa.gov/pmb/codes/nwprod

Note that these basin boundaries are unofficial and may deviate significantly from official USGS estimates of contributing drainage area. These basin boundaries were derived by accumulating NHDv2 Catchments using the HyRiver suite of Python tools. See the "Drainage Area Delineation" example for more details: https://docs.hyriver.io/examples/notebooks/nwis_catchments.html

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Oceanic and Atmospheric Administration

Contributors

People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
Taher Chegini University of Houston Houston, US

How to Cite

Regina, J. A. (2025). National Water Model Assimilation Gage Basin Boundaries, HydroShare, https://doi.org/10.4211/hs.b26b7c34c2e94d9087119ae1506b3e11

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

Comments

There are currently no comments

New Comment

required