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Region 2

Notes for region 2 accuracy assessment

The New York/New Jersey (region 2) sampling design differed slightly from the others. In this region, the land-cover class stratification was implemented only for seven rare classes, and these sample data are then combined with pixels obtained from a separate, general design not stratified by land-cover class. A total of 1,359 sample pixels were used for the accuracy assessment.

Reference data collected from NAPP photos includes primary and alternate land-cover label where appropriate, land-cover heterogeneity in the vicinity of the sample unit, and a confidence rating of the photointerpreted land-cover label.