NLCD 2001 Version 2

National Land Cover Database 2001 (NLCD2001) is a 16-class (additional four classes in Alaska only) land cover classification scheme that has been applied consistently across all 50 United States and Puerto Rico at a spatial resolution of 30 meters. NLCD2001 is based primarily on the unsupervised classification of Landsat Enhanced Thematic Mapper+ (ETM+) circa 2001 satellite data. NLCD2001 improves on NLCD92 in that it is comprised of three different elements: land cover, percent developed impervious surface and percent tree canopy density. NLCD2001 also uses improved classification algorithms, which have resulted in data with more precise rending of spatial boundaries between the land cover classes.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier C1220567915-USGS_LTA
issued 2019-09-20
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1220567915-USGS_LTA.html
language {en-US}
metadata_type geospatial
modified 2025-03-31
old-spatial -180.0 -90.0 180.0 90.0
programCode {026:001}
publisher DOI/USGS/EROS
resource-type Dataset
source_datajson_identifier true
source_hash 09b2843f62b330a83af47c07c56bf0bffa21fdaa8d866d05968ab7c053a59d00
source_schema_version 1.1
temporal 1970-01-01T00:00:00Z/2022-01-17T00:00:00Z
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • earth-science
  • erosion-sedimentation
  • geomorphic-landforms-processes
  • land-surface
  • land-use-land-cover
  • landscape
  • soils
  • surface-radiative-properties
  • topography
isopen False
license_id notspecified
license_title License not specified
maintainer ANNIEPAT JOHNSON
maintainer_email lta@usgs.gov
metadata_created 2025-09-23T16:00:25.865241
metadata_modified 2025-09-23T16:00:25.865248
notes National Land Cover Database 2001 (NLCD2001) is a 16-class (additional four classes in Alaska only) land cover classification scheme that has been applied consistently across all 50 United States and Puerto Rico at a spatial resolution of 30 meters. NLCD2001 is based primarily on the unsupervised classification of Landsat Enhanced Thematic Mapper+ (ETM+) circa 2001 satellite data. NLCD2001 improves on NLCD92 in that it is comprised of three different elements: land cover, percent developed impervious surface and percent tree canopy density. NLCD2001 also uses improved classification algorithms, which have resulted in data with more precise rending of spatial boundaries between the land cover classes.
num_resources 1
num_tags 17
title NLCD 2001 Version 2