Accuracy assessment of NLCD 2011 impervious cover data for the Chesapeake Bay region, USA.

ABSTRACT: The National Land Cover Database (NLCD) contains three eras (2001, 2006, 2011) of percentage urban impervious cover (%IC) at the native pixel size (30 m-×-30 m) of the Landsat Thematic Mapper satellite. These data are potentially valuable to environmental managers and stakeholders because of the utility of %IC as an indicator of watershed and aquatic condition, but lack an accuracy assessment because of the absence of suitable reference data. Recently developed 1 m² land cover data for the Chesapeake Bay region makes it possible to assess NLCD %IC accuracy for a 262,000 km² region based on a census rather than a sample of reference data. We report agreement between the two %IC datasets for watersheds and the riparian zones within watersheds and four additional square

SUBMITTER: Wickham J 

PROVIDER: S-EPMC6463313 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature