Thematic Validation of Land Cover Data of the Eastern United States Using Aerial Photography: Feasibility and Challenges

摘要

Thematic accuracy of a medium spatial resolution (30 meter) land cover data set of the eastern United States was assessed using 1:40,000 scale aerial photos acquired by the United States National Aerial Photography Program (NAPP). The approach implemented for the project proves feasible and cost-effective for validating a large-area land cover product. This paper addresses advantages and limitations in using aerial photos as reference data and presents preliminary results from the data analysis.