National Land Cover Database (NLCD) Percent Tree Canopy Collection

Metadata Updated: August 2, 2018

The National Land Cover Database (NLCD) Percent Tree Canopy Collection is a product of the U.S. Forest Service (USFS), and is produced through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium (www.mrlc.gov). The MRLC Consortium is a partnership of Federal agencies, consisting of the U.S. Geological Survey, the National Oceanic and Atmospheric Administration, the U.S. Environmental Protection Agency, the U.S. Department of Agriculture (USDA) National Agricultural Statistics Service, the U.S. Forest Service, the National Park Service, the U.S. Fish and Wildlife Service, the Bureau of Land Management, NASA, and the U.S. Army Corps of Engineers. A primary goal of the MRLC Consortium is to generate current, consistent, and seamless national datasets of land cover, percent developed imperviousness, and percent tree canopy. NLCD 2001 Percent Tree Canopy was developed in three key steps: 1. Reference data of tree canopy density was derived from the high spatial resolution images. 2. Density prediction models were calibrated using reference data and Landsat spectral bands. 3. The models developed in step 2 were extrapolated spatially to map per-pixel tree canopy density. This method is described in detail in Huang et al. (2001). NLCD 2011 Percent Tree Canopy – Cartographic is the cartographic version of the NLCD 2011 Percent Tree Canopy – Analytical dataset for the 48 conterminous states. It was produced by the USDA Forest Service Remote Sensing Applications Center (RSAC). Tree canopy values range from 0 to 100 percent. The analytic tree canopy layer was produced using a Random Forests™ regression algorithm. The cartographic product is a filtered version of the regression algorithm output. Questions about the NLCD Percent Tree Canopy Collection can be directed to the NLCD land cover mapping team at USGS EROS, Sioux Falls, SD (605) 594-6151 or mrlc@usgs.gov.

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Collection

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Dates

Metadata Date December 7, 2016
Metadata Created Date April 14, 2015
Metadata Updated Date August 2, 2018
Reference Date(s) January 1, 2015 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from EROS NLCD NGDA Tree Canopy

Graphic Preview

Browse JPG image

Additional Metadata

Resource Type Dataset
Metadata Date December 7, 2016
Metadata Created Date April 14, 2015
Metadata Updated Date August 2, 2018
Reference Date(s) January 1, 2015 (publication)
Responsible Party U.S. Geological Survey (Point of Contact)
Contact Email
Access Constraints Use Constraints: Any hardcopy or electronic products utilizing these datasets will clearly indicate their source. If the user has modified the data in any way, they are obligated to describe the types of modifications they have performed. User specifically agrees not to misrepresent these data sets, nor to imply that the MRLC approved the changes. Any data downloaded must be properly cited., Access Constraints: None
Bbox East Long -65
Bbox North Lat 71.5
Bbox South Lat 17.625
Bbox West Long -179.1666667
Collection Metadata true
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Browse JPG image
Graphic Preview File https://thor-f5.er.usgs.gov/ngtoc/metadata/waf/collections/NLCD_2011_Tree_Canopy.jpg
Graphic Preview Type JPEG
Guid
Harvest Object Id 7c131005-a3c9-4781-bdb4-9938ddd4e5a9
Harvest Source Id 8b583784-73a3-47f6-9621-6fadea6e45ec
Harvest Source Title EROS NLCD NGDA Tree Canopy
Licence See access and use constraints information.
Metadata Language
Metadata Type geospatial
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2001-01-01
Temporal Extent End 2011-01-01

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