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The LakeCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: Road and Stream Intersections

Metadata Updated: November 14, 2023

This dataset represents the density of road and stream crossings within individual local and accumulated upstream catchments for NHDPlusV2 Waterbodies. Catchment boundaries in LakeCat are defined in one of two ways, on-network or off-network. The on-network catchment boundaries follow the catchments provided in the NHDPlusV2 and the metrics for these lakes mirror metrics from StreamCat, but will substitute the COMID of the NHDWaterbody for that of the NHDFlowline. The off-network catchment framework uses the NHDPlusV2 flow direction rasters to define non-overlapping lake-catchment boundaries and then links them through an off-network flow table. The landscape layer (raster) was developed by James Falcone of the USGS. US Census TIGER 2000 line files of roads and the NHDPlusV1 line files of all streams were converted to 30-meter grids where the presence of a street or stream was a 1 and everything else a 0. These were intersected and anything that was a 1 in both grids is the result. The density of road and stream crossings (crossings / square kilometer) were summarized to produce local catchment-level and watershed-level metrics as a continuous data type.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources

References

https://gaftp.epa.gov/epadatacommons/ORD/NHDPlusLandscapeAttributes/LakeCat/FinalTables/
https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=BFB01111-7676-4E96-B9BD-7DC4E5A3168B

Dates

Metadata Created Date October 3, 2023
Metadata Updated Date November 14, 2023
Data Update Frequency R/P3Y

Metadata Source

Harvested from LakeCat Harvest

Additional Metadata

Resource Type Dataset
Metadata Created Date October 3, 2023
Metadata Updated Date November 14, 2023
Publisher U.S. Environmental Protection Agency, Office of Research and Development (ORD), Center for Public Health and Environmental Assessment (CPHEA), Pacific Ecological Systems Division (PESD),
Maintainer
Identifier BFB01111-7676-4E96-B9BD-7DC4E5A3168B
Data First Published 2015-04-23
Language en-US
Data Last Modified 2023-11-13
Rights public (Data asset is or could be made publicly available to all without restrictions)
Category environment
Public Access Level public
Data Update Frequency R/P3Y
Bureau Code 020:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://edg.epa.gov/data/Public/ORD/NHEERL/WED/NonGeo/LakeCat.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Quality True
Data Dictionary https://www.epa.gov/national-aquatic-resource-surveys/lakecat-metrics-and-definitions
Data Dictionary Type text/html
Harvest Object Id 95121c90-bec4-4e7c-9b08-8a1ddcf0de3d
Harvest Source Id 54618c4c-64b6-4a3b-9748-ad612299d8a0
Harvest Source Title LakeCat Harvest
Homepage URL https://www.epa.gov/national-aquatic-resource-surveys/lakecat-dataset
License https://edg.epa.gov/EPA_Data_License.html
Old Spatial -125.0,24.5,-66.5,49.5
Program Code 020:072
Related Documents https://gaftp.epa.gov/epadatacommons/ORD/NHDPlusLandscapeAttributes/LakeCat/FinalTables/, https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=BFB01111-7676-4E96-B9BD-7DC4E5A3168B
Source Datajson Identifier True
Source Hash be6bdca393711b83f441f2b2bd25002eaf69dd4e43803f7e10b50f5edcc8179b
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -125.0, 24.5, -125.0, 49.5, -66.5, 49.5, -66.5, 24.5, -125.0, 24.5}
Temporal 2015/2030

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