NLCD 2001 Land Cover

This page last updated: 04/18/2017
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 Overview
Originator U.S. Geological Survey
Title NLCD 2001 Land Cover
Abstract This Minnesota NLCD layer is derived from the full NLCD dataset. The national raster is clipped and projected to UTM Zone 15N. For the original dataset in Albers Equal Area Conic, refer to the NLCD webpage: www.mrlc.gov/nlcd01_data.php

The National Land Cover Database 2001 for Minnesota 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. This landcover map and all documents pertaining to it are considered "provisional" until a formal accuracy assessment can be conducted. For a detailed definition and discussion on MRLC and the NLCD 2001 products, refer to Homer et al. (2004).

Three layers are included:
- Land Cover (mapping zones 31-51)
- Imperviousness Surface (mapping zones 39, 40-42, and 50-51)
- Tree Canopy (mapping zones 39-42, 50-51)
Purpose 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. Imperviousness relates to the degree to which land is impervious to water runoff. Undeveloped land has no (or very little) imperviousness. Development such as roads, sidewalks, driveways, homes, increases the imperviousness of the land.
Time Period of Content Date 1990-09-23 / 2004-07-26
Currentness Reference ground condition

- Land Cover: 1999-10-31 / 2003-07-18
- Imperviousness: 1990-09-23 / 2004-07-26
- Tree Canopy: 1999-04-28/2004-07-26
Progress In work
Maintenance and Update Frequency As needed
Spatial Extent of Data Minnesota
Bounding Coordinates -96.925259
-89.225883
49.366132
43.375491
Place Keywords United States, U.S., US, Minnesota, MN, South Dakota, SD, North Dakota, ND, Iowa, IA, Michigan, MI, Wisconsin, WI, Illinois, IL, Indiana, IN, Great Lakes
Theme Keywords Land Cover, U.S. Geological Survey, USGS, digital spatial data, Base Maps, Earth Cover, tree canopy, imagery
Theme Keyword Thesaurus
Access Constraints None
Use Constraints None
Contact Person Information Cutomer Service Representative,
U.S. Geological Survey
USGS/EROS 47914 252nd Street
Sioux Falls, SD  57198-0001
Phone: (605) 594-6151
Fax: (605) 594-6589
Email: custserv@usgs.gov
Browse Graphic Click to view a data sample
Associated Data Sets

Section 2 Data Quality
Attribute Accuracy
Logical Consistency Not Applicable
Completeness Complete over the State of Minnesota
Horizontal Positional Accuracy Not Applicable
Vertical Positional Accuracy Not Applicable
Lineage

Section 3 Spatial Data Organization (not used in this metadata)

Section 4 Coordinate System
Horizontal Coordinate Scheme Universal Transverse Mercator
UTM Zone Number 15
Horizontal Datum NAD83
Horizontal Units meters
Cell Width 30
Cell Height 30

Section 5 Attributes
Overview
Detailed Citation
Table Detail:
nlcd_mn_2001_imperviousness - This table provides information on the band colors for the Minnesota Imperviousness layer.
Field NameValid ValuesDefinitionDefinition Source
VALUEenumeratedPercent Imperviousness
0-100Percent Impervious Surface
127No Data
COUNT
-
A nominal integer value that designates the number of pixels that have each value in the file; histogram column in ERDAS Imagine raster attributes table

nlcd_mn_2001_land_cover
Field NameValid ValuesDefinitionDefinition Source
VALUEenumeratedLand Cover Class Code Value
11Open Water - All areas of open water, generally with less than 25% cover of vegetation or soil.
21Developed, Open Space - Areas with a mixture of some constructed materials, but mostly vegetation in the form of lawn grasses, and impervious surfaces accounting for less than 20% of total cover. These areas most commonly include large-lot single-family housing units, parks, golf courses, and vegetation planted in developed settings for recreation, erosion control, or aesthetic purposes.
22Developed, Low Intensity - Areas with a mixture of constructed materials and vegetation, impervious surfaces accounting for 20-49% of total cover. These areas most commonly include single-family housing units.
23Developed, Medium Intensity - Areas with a mixture of constructed materials and vegetation, impervious surfaces accounting for 50-79% of the total cover. These areas most commonly include single-family housing units.
24Developed, High Intensity - Highly developed areas where people live or work in high numbers, including apartment complexes, row houses and commercial/industrial zones. Impervious surfaces account for 80-100% of total cover.
31Barren Land (Rock/Sand/Clay) - Bedrock, desert pavement, scarps, talus, slides, volcanic material, glacial debris, sand dunes, strip mines, gravel pits and other accumulations of earthen material. Vegetation generally accounts for less than 15% of total cover.
41Deciduous Forest - Dominated by trees generally over 5 meters tall, and more than 20% of total vegetation cover. More than 75% of the tree species shed foliage simultaneously in response to seasonal change.
42Evergreen Forest - Dominated by trees generally over 5 meters tall, and more than 20% of total vegetation cover. More than 75% of the tree species remain in leaf all year. Canopy is never without green foliage.
43Mixed Forest - Dominated by trees generally over 5 meters tall, and more than 20% of total vegetation cover. Neither deciduous nor evergreen species are more than 75% of total tree cover.
52Shrub/Scrub - Areas dominated by shrubs under 5 meters tall with shrub canopy typically more than 20% of total vegetation. This class includes true shrubs, young trees in an early successional stage or trees stunted from environmental conditions.
71Grassland/Herbaceous - Areas dominated by graminoid or herbaceous vegetation, generally more than 80% of total vegetation. These areas are not subject to intensive management or tilling, but can be utilized for grazing.
81Pasture/Hay - Areas of grasses, legumes, or grass-legume mixtures planted for livestock grazing or production of seed or hay crops, typically on a perennial cycle. Pasture/hay accounts for more than 20% of total vegetation.
82Cultivated Crops - Areas used for the production of annual crops, such as corn, soybeans, vegetables, tobacco, and cotton, and also perennial woody crops such as orchards and vineyards. Crop vegetation accounts for more than 20% of total vegetation. Includes all land being actively tilled.
90Woody Wetlands - Areas where forest or shrub land vegetation accounts for more than 20% of vegetative cover and the soil or substrate is periodically saturated with or covered with water.
95Emergent Herbaceous Wetlands - Areas where perennial herbaceous vegetation accounts for more than 80% of vegetative cover and the soil or substrate is periodically saturated with or covered with water.
COUNT
-
A nominal integer value that designates the number of pixels that have each value in the file; histogram column in ERDAS Imagine raster attributes table
RED
-
Red color code for RGB slice by value for canopy image display purposes. The value is arbitrarily assigned by the display software package, unless defined by user. Standard user defined ramp for NLCD project is start color light gray, end color red.
GREEN
-
Green color code for RGB slice by value for canopy image display purposes. The value is arbitrarily assigned by the display software package, unless defined by user. Standard user defined ramp for NLCD project is start color light gray, end color green.
BLUE
-
Blue color code for RGB slice by value for canopy image display purposes. The value is arbitrarily assigned by the display software package, unless defined by user. Standard user defined ramp for NLCD project is start color light gray, end color blue.
OPACITY
-
A measure of how opaque, or solid, a color is displayed in a layer.
SHORT_DEF
-
Land Cover Class Code Short Description
LONG_DEF
-
Land Cover Class Code Long Description

nlcd_mn_2001_tree_canopy
Field NameValid ValuesDefinitionDefinition Source
COUNT
-
A nominal integer value that designates the number of pixels that have each value in the file; histogram column in ERDAS Imagine raster attributes table
VALUE
-
Percent Canopy


Section 6 Distribution
Publisher Minnesota Department of Natural Resources (DNR)
Publication Date 2003-09-01 00:00:00.0
Contact Person Information Zeb Thomas, GIS Data Systems Coordinator
Minnesota Department of Natural Resources
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5637
Email: zeb.thomas@state.mn.us
Distributor's Data Set Identifier biota_landcover_nlcd_mn_2001
Distribution Liability The Minnesota Department of Natural Resources General Geographic Data License Agreement is online: www.dnr.state.mn.us/sitetools/data_software_license.html
Ordering Instructions Please visit the download page for this dataset on the Minnesota Geospatial Commons website using the web link below (Online Linkage).
Online Linkage I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process or link to download information. See "Ordering Instructions" above for details.

Section 7 Metadata Reference
Metadata Date 04/18/2017
Contact Person Information Cutomer Service Representative,
U.S. Geological Survey
USGS/EROS 47914 252nd Street
Sioux Falls, SD  57198-0001
Phone: (605) 594-6151
Fax: (605) 594-6589
Email: custserv@usgs.gov
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm


This page last updated: 04/18/2017
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