The goal of the EOS Validation Program is the comprehensive assessment of all EOS science data products. The ORNL DAAC supports these assessments by compiling data, such as leaf area index (LAI) and net primary productivity (NPP), for global test sites to compare with satellite-derived products. These data are unique in having ground-based observations coincident with satellite data. In addition, this information is useful to develop, calibrate, and validate ecosystem models.

• Acronyms
• Reports
• Presentations

The ORNL DAAC holds data from several campaigns:

• CANOPY CHEMISTRY (ACCP)
• BIGFOOT
• FLUXNET
• EOS LAND VALIDATION
• MODIS Land Products Subsets
• PROVE

EOS Land Validation activities include a remote-sensing study of vegetation canopy nitrogen and lignin content for various ecosystems in the U.S. (Accelerated Canopy Chemistry Program, or ACCP), in situ and aircraft measurements for validationg satellite products (EOS Land Validation), a prototype for validating EOS satellite algorithms and products (PROVE), selected MODIS land products representing validation sites around the world (in ASCII format), and long-term measurements of carbon dioxide (MODIS ASCII Subsets), water vapor, and energy exchange collected from a global network (FLUXNET).