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Lotic vs. Lentic Water: a U.S. national 30-meter raster classification of water areas by velocity

Metadata Updated: October 29, 2023

This dataset consists of a national 30-meter raster which classifies pixels representing water from the National Land Cover Database 2016 (NLCD 2016) according to their estimated velocity regime. At the broadest classification, the data are mapped into two groups: “Lentic”, representing water bodies such as lakes, ponds, oceans, and bays, and “Lotic”, representing flowing water, such as streams, rivers, and canals. These are further broken into 12 subordinate classes ordered according to velocity. These include categories of retention time for water in lakes/ponds and flow velocity for streams/rivers. The classes are derived based on information from the NHD High- and Medium-Resolution databases. Of the 470.7 million water pixels in the NLCD, approximately 143 million are classified as ocean/bay/estuary (30%), 295 million as lakes/ponds/reservoirs (63%), and 32 million as streams/rivers/canals (7%). The dataset allows users to better characterize the nature of flowing and non-flowing water when using the NLCD.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Maintainer
@Id http://datainventory.doi.gov/id/dataset/1d85bbc7043fcc0e1fbdc91811c25557
Identifier USGS:5d420fbde4b01d82ce8da8e9
Data Last Modified 20220805
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.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
Harvest Object Id 9ca3fe72-1cd8-460a-aa7e-0ac064ccc093
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -127.977345175,22.768690319,-65.25298988,50.6283256
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 92782f47fc7802f22ff6d1ce5043dfba413fd22ffb053b68e10ccc1a3238da08
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -127.977345175, 22.768690319, -127.977345175, 50.6283256, -65.25298988, 50.6283256, -65.25298988, 22.768690319, -127.977345175, 22.768690319}

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