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The LakeCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: National Anthropogenic Barrier Dataset

Metadata Updated: November 14, 2023

This dataset represents the dam density and storage volumes within individual local and accumulated upstream catchments for NHDPlusV2 Waterbodies based on the National Anthropogenic Barrier Dataset (NABD). 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 main objective of this project was to develop a dataset of large, anthropogenic barriers that are spatially linked to the National Hydrography Dataset Plus Version 1 (NHDPlusV1) for the conterminous U.S. to facilitate GIS analyses based on the NHDPlusV1/NHD and NID datasets. To meet this objective, Michigan State University conducted a spatial linkage of the point dataset of the 2009 National Inventory of Dams (NID) created by the U.S. Army Corps of Engineers (USACE) to the NHDPlusV1/NHD. The pool of dam data included were modified based on 1) dam removals that occurred after development of the 2009 NID and 2) the identification of duplicate dam records along state boundaries (cases where more than one state reported the same dam). The US Geological Survey (USGS) Aquatic GAP Program supported this work. The (dams/catchment) and (dam_storage/catchment) were summarized and accumulated into watersheds to produce local catchment-level and watershed-level metrics as a point 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=8A4F8423-0D37-4F28-938A-E5522BFEAA96

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 8A4F8423-0D37-4F28-938A-E5522BFEAA96
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 9cf71591-ff78-4ff0-979f-6281c0b55b5d
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=8A4F8423-0D37-4F28-938A-E5522BFEAA96
Source Datajson Identifier True
Source Hash 2dde9b6e35cbf3a6b4f99d4450033f8833f9485bd372fdb813b214c177de422a
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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