2001 National Land Cover Data metadata

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The National Land Cover Database 2001 land cover layer was produced through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. One of the primary goals of the project is to generate a current, consistent, seamless, and accurate National Land cover Database (NLCD) circa 2001 for the United States at medium spatial resolution. For a detailed definition and discussion on MRLC and the NLCD 2001 products, r... more

Also known as:

  • 2001 NLCD

Facts from the Community

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Latitude resolution:

Longitude resolution:

Map projection:

Grid coordinate system:

Planar encoding and units:

  • row and column

Planar coordinate system:

Abscissa resolution Ordinate resolution
  • 0.00028
  • 0.00028

Mapping program(s):

Citation:

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Description:

FGDC Abstract FGDC Purpose
  • Derived from the early to mid-1990s Landsat Thematic Mapper satellite data, the National Land Cover Data (NLCD) is a 21-class land cover classification scheme applied consistently over the United States. The spatial resolution of the data is 30 meters and mapped in the Albers Conic Equal Area projection, NAD 83
  • The goal of this project is to provide the Nation with complete, current and consistent public domain information on its land use and land cover.

Time period of content:

Beginning date Ending date Currentness reference
  • Oct 31, 1999
  • Jul 18, 2003
  • ground condition

Status:

Maintenance and update frequency:

Bounding coordinates:

West East North South
  • -128.00669
  • -65.23031
  • 51.67091
  • 22.69674

Theme keyword(s):

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Place keyword(s):

Access constraint(s):

  • None

Use constraint(s):

  • None

Direct spatial reference:

Raster object information:

Raster object type Row count Column count Vertical count
  • 104,307
  • 225,995
  • 1

Process step(s):

  • Development of Tasseled Cap coefficients for Landsat 7 at-sensor reflectance
  • Regional mapping using land cover friendly mapping zones
  • Identification of optimal early, peak and late Landsat TM scene acquisitions for each path/row based on AVHRR seasonal averages.
  • Comprehensive accuracy assessments of the land cover data and related components.
  • Development of Landsat 7 radiometric and at-sensor reflectance calibrations for imagery to reduce mosaicing difficulty.
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