Skip to Main Content
Assessment of 2001 NLCD percent tree and impervious cover estimatesAuthor(s): Eric Greenfield; David J. Nowak; Jeffrey T. Walton
Source: Photogrammetric Engineering and Remote Sensing. 75(11): 1279-1286.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: Download Publication (488.19 KB)
DescriptionThe 2001 National Land Cover Database (NLCD) tree and impervious cover maps provide an opportunity to extract basic land-cover information helpful for natural resource assessments. To determine the potential utility and limitations of the 2001 NLCD data, this exploratory study compared 2001 NLCD-derived values of overall percent tree and impervious cover within geopolitical boundaries with aerial photo interpretation-derived values for the same areas. Results of the comparison reveal that NLCD underestimates tree cover and to a lesser extent, underestimates impervious cover. The underestimate appears to be consistent across the conterminous United States with no statistical differences among regions. However, there were statistical differences in the degree of underestimation of tree cover among mapping zones and of impervious cover by population density class.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationGreenfield, Eric, J.; Nowak, David J.; Walton, Jeffrey T. 2009. Assessment of 2001 NLCD percent tree and impervious cover estimates. Photogrammetric Engineering and Remote Sensing. 75(11): 1279-1286.
- Evaluating the national land cover database tree canopy and impervious cover estimates across the conterminous United States: a comparison with photo-interpreted estimates
- Evaluation of the National Land Database for Hydrologic Applications in Urban And Suburban Baltimore, Maryland
- Difficulties with estimating city-wide urban forest cover change from national, remotely-sensed tree canopy maps
XML: View XML