lcmap
LCMAP (Land Change Monitoring, Assessment, and Projection) is a USGS project aimed at generating annual land cover and land cover change maps for the United States (1). The LCMAP CONUS Reference Dataset is a collection of human-interpreted labels for 27,000 30m x 30m plots across CONUS, which includes an initial sample of 25,000 randomly distributed points and a supplemental sample of 2,000 stratified random "intensification" sites (2). Land use, land cover, and change process information for each plot are available for annual timesteps for the year 1984 to 2021.
We use the LCMAP reference datasets, which include both land cover (lc) and land
use (lu) label properties, to create two classification datasets (lcmap_lc and
lcmap_lu) and two change detection evaluation datasets (lcmap_lcc and
lcmap_luc). These datasets are representative of the contiguous United States
(CONUS), and we take performance on lcmap sub-datasets as indicative of
performance for operational national-scale land use and land cover mapping and
change detection. Processing for individual sub-datasets are described in the
README files associated with each dataset.
License
This data is in the public domain and available at https://www.usgs.gov/special-topics/lcmap/lcmap-conus-reference-data and/ or https://gee-community-catalog.org/projects/lcmap/#lcmap-level-1-land-cover-classes. Details about USGS data in the public domain can be found here: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits. This version of the dataset is modified as described above.
References
- J. F. Brown, H. J. Tollerud, C. P. Barber, Q. Zhou, J. L. Dwyer, J. E. Vogelmann, T. R. Loveland, C. E. Woodcock, S. V. Stehman, Z. Zhu, B. W. Pengra, K. Smith, J. A. Horton, G. Xian, R. F. Auch, T. L. Sohl, K. L. Sayler, A. L. Gallant, D. Zelenak, R. R. Reker, J. Rover, Lessons learned implementing an operational continuous United States national land change monitoring capability: The Land Change Monitoring, Assessment, and Projection (LCMAP) approach. Remote Sens. Environ. 238, 111356 (2020).
- B. Pengra, S. Stehman, J. A. Horton, R. F. Auch, S. Kambly, M. L. Knuppe, D. Sorenson, C. J. Robison, J. Taylor, LCMAP CONUS Reference Data Product 1984-2021 land cover, land use and change process attributes, U.S. Geological Survey (2023); https://doi.org/10.5066/P933Z1TK.