MODIS/Terra NPP: Annual Global Vegetation Productivity at 500m

MODIS/Terra Net Primary Production Yearly L4 Global 500m SIN Grid V006 provides annual estimates of global Net Primary Production (NPP) at a 500-meter pixel resolution. The data product is derived from 8-day Net Photosynthesis (PSN) composites, calculated as the difference between Gross Primary Productivity (GPP) and Maintenance Respiration (MR). NASA has decommissioned this Version 6 product, recommending users migrate to the updated MOD17A3HGF Version 6.1.

Use Cases

• Modeling global carbon budgets based on annual Net Primary Production estimates.
• Assessing vegetation health and productivity trends using 500m resolution geospatial data.
• Studying ecological dynamics by analyzing the relationship between GPP, maintenance respiration, and NPP.
• Calibrating or validating terrestrial ecosystem models with MODIS-derived production data.

Strengths

• Provides global coverage at a consistent 500-meter spatial resolution.
• Derived from a well-established MODIS sensor platform and associated data products (e.g., MOD15A2H, MOD17A2H).
• Version 6 incorporated improvements such as updated Biome Property look-up tables (BPLUT) and meteorological data.

Limitations

• The dataset is decommissioned (as of July 31, 2023) and forward processing was discontinued on January 3, 2004, indicating it is not current.
• Metadata completeness is low: specific column names, row counts, and file sizes are not provided across platforms.
• Sources conflict on the 'last updated' date (2026-04-10 vs 2004-01-03), creating uncertainty about provenance.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite remote sensing via the MODIS sensor on the Terra platform, processed using a defined algorithm for NPP.

Freshness

2004-01-03 23:59:59

Geography

Global