BigFoot GPP Surfaces for North and South American Biomes, 2000-2004

2000 to 2004 Gross Primary Production (GPP) data for nine EOS Land Validation Sites from Alaska to Brazil, gathered by the NASA-funded BigFoot project. The data consists of 7x7 km GPP surfaces at 25-meter resolution, produced using the Biome-BGC model calibrated with field and tower measurements. It was archived by the National Aeronautics and Space Administration.

Use Cases

• Validate MODIS land cover and GPP products based on high-resolution ground and remote sensing data.
• Model spatial patterns of ecosystem carbon uptake based on biome-specific GPP surfaces.
• Analyze inter-annual variability in primary production across distinct biomes from Arctic tundra to tropical forest.
• Study the ecological footprint of CO2 flux towers within a 49-pixel area.

Strengths

• Covers nine distinct biomes across the Americas, providing comparative ecological data.
• Data surfaces have a high spatial resolution of 25 meters over a 7x7 km extent.
• Model was calibrated using field-measured NPP and validated with tower-derived GPP estimates.
• Project funded by NASA's Terrestrial Ecology Program, indicating authoritative provenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The archived data currently includes only two of the nine sites (NOBS and HARV from 2001).

Provenance

Source

National Aeronautics and Space Administration

Collection Method

GPP surfaces produced by the Biome-BGC model using Landsat ETM+ data, tower meteorology, and site-specific parameters.

Time Range

2000-2004

Freshness

Last updated 2026-03-13 06:22:02.631339; freshness should be verified.

Geography

Nine sites from Alaska to Brazil, representing Arctic tundra, boreal forest, temperate cropland/grassland/forest, desert grassland/shrubland, and tropical forest.