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LCMAP Hawaii Validation Data

By Land Change Monitoring, Assessment, and Projection

Land use and land cover attributes were assigned to 600 reference samples (30m x 30m) by trained interpreters across Hawaii for each year of the time series (2000–2019). Reference sample locations were selected via stratified random sampling.

The interpreted attributes were crosswalked to the LCMAP annual land cover classes: Developed, Cropland, Grass/Shrub, Tree Cover, Wetland, Water, Ice/Snow and Barren.

The validation analysis directly compared reference data labels with annual LCMAP land cover map attributes by cross tabulation. The results of that assessment are reported as confusion matrices for land cover agreement and land cover change agreement. Overall, Hawaii land cover agreement across all years was found to be 83.4% for Collection 1.0. Annual and regional accuracies are also reported.

Product Contents

Validation Tables

  • Portable Document Format (PDF) file containing validation tables
  • extensible markup language (xml) file containing validation tables metadata

Validation Data

  • Compressed (.zip) file containing comma-separated value (.csv) files of data used to create the validation tables
  • Extensible Markup Language (.xml) file containing validation data metadata

Data Access

The validation tables and validation data are available through USGS ScienceBase and the USGS Science Data Catalog.

Collection 1.0

Reference data

Citation Information

Collection 1.0

Pengra, B.W., Stehman, S.V., Horton, J.A., and Wellington, D.F., 2022, Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Annual Land Cover and Land Cover Change Validation Tables (2000–2019) for Hawaii: U.S. Geological Survey data release, https://doi.org/10.5066/P99X6X7K

References

Card, D.H., 1982, Using Known Map Category Marginal Frequencies to Improve Estimates of Thematic Map Accuracy.  Photogrammetric Engineering and Remote Sensing, 48.

Pengra, B.W., Stehman, S.V., Horton, J.A., Auch, R.F., Kambly, S., and Taylor, J.L., 2021, LCMAP Hawaii Reference Data Product land cover, land use and change process attributes: U.S. Geological Survey data release, https://doi.org/10.5066/P9X42T97.

Stehman, S.V., 1997, Estimating Standard Errors of Accuracy Assessment Statistics Under Cluster Sampling.  Remote Sensing of Environment, 60, https://doi.org/10.1016/S0034-4257(96)00176-9.