from moderate-resolution land imagery, and for documenting and validating algorithms, including their modifications or replacements. In doing so, the program should
• Define criteria that government-provided authoritative data sets should meet, among them such attributes as calibration, accuracy assessment, and validation, and including ground truth;
• Define criteria for which products should be provided by the government and which by the private sector;
• Implement procedures for development, cost estimation, peer review, and the publication of algorithms that produce derived products; and
• Implement plans, procedures, and budgets for ongoing validation.