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Published March 12, 2019 | Version 1.1
Dataset Open

NLCD_INEGI: Harmonized US-Mexico Land Cover Change Dataset, 1992/2001/2011

  • 1. ASU School of Earth and Space Exploration


We have taken the Uso del Suelo y Vegetacion land cover classification products for Mexico (courtesy of Mexico's Instituto Nacional de Estadistica y Geografia, or INEGI) for years 1985, 1993, 2002, 2007, and 2011 (INEGI, 2015); harmonized their classes with the classes of the Multi-Resolution Land Characteristics Consortium (MRLC) National Land Cover Database (NLCD) (Homer et al., 2015), and merged the two datasets to form a single land cover product covering the continental US and Mexico, for years 1992/3, 2001/2, and 2011. Details of processing, along with the processing scripts, are archived in GitHub in the NLCD_INEGI project (Bohn, 2019).

Output files are ESRI ascii-format raster files, geographic projection, 0.000350884 degree cellsize. Each file contains a 1x1 degree box or "tile", named nlcd_inegi.lat0_lat1n.lon0_lon1w.asc, where lat0 and lat1 are the south and north boundaries of the box and lon0 and lon1 are the west and east boundaries (west = positive).

This project contains the following g-zipped tar files:

  • 1992.tgz - land cover from 1992 (NLCD) and 1993 (INEGI)
  • 2001.tgz - land cover from 2001 (NLCD) and 2002 (INEGI)
  • 2011.tgz - land cover from 2011 (both NLCD and INEGI)
  • stable_2001-2011.tgz - land cover from those pixels that had the same class in 2001 and 2011 ("stable" pixels)

On LINUX, the contents of these files can be extracted via "tar":

tar -xvzf 1992.tgz >& log.tar.txt

On Windows, applications such as "7-zip" can extract the contents.

Each of these .tgz files contain a folder with the same name but without the ".tgz". Within each of these folders is a sub-folder called "asc.clip.1deg". This folder contains the 1x1 tiles.


Files (5.0 GB)

Name Size Download all
1.3 GB Download
1.2 GB Download
1.2 GB Download
1.3 GB Download

Additional details


  • INEGI, 2014: Conjunto de datos vectoriales de Uso del Suelo y Vegetación, Escala 1:250 000, Serie V (Capa Unión). (Accessed October 1, 2015).
  • Homer, C. G., and Coauthors, 2015: Completion of the 2011 National Land Cover Database for the conterminous United States - Representing a decade of land cover change information. Photogramm. Eng. Remote Sens., 81, 345–354.
  • Bohn, T. J., 2019: tbohn/NLCD_INEGI: Tools to Create Harmonized US-Mexico Land Cover Classifications from NLCD and INEGI, 1992/2001/2011, v1.5 (Version v1.5). Zenodo,