MODIS/Aqua MYD17A3H: Annual Net Primary Production at 500m

MODIS/Aqua MYD17A3H Version 6 is a decommissioned satellite-derived data product providing annual estimates of Net Primary Production (NPP) globally at a 500-meter pixel resolution. The dataset is derived from 8-day Net Photosynthesis composites and uses updated biome property tables and meteorological data. It has been superseded by the MYD17A3HGF Version 6.1 product.

Use Cases

• Modeling global carbon budgets based on annual vegetation productivity estimates.
• Assessing ecosystem health and changes in biomass over time using the 500m resolution NPP data.
• Validating terrestrial biosphere models with satellite-derived primary production metrics.

Strengths

• Provides data at a native 500-meter spatial resolution, offering detailed spatial analysis.
• Uses updated Biome Property look-up tables (BPLUT) and Global Modeling and Assimilation Office (GMAO) meteorological data.

Limitations

• The dataset was decommissioned on July 31, 2023, and forward processing was discontinued on January 3, 2004, indicating it is outdated.
• Sources conflict on the last updated date, with one listing 2004-01-03 and another 2026-04-10, creating uncertainty about metadata freshness.
• Known issues exist, requiring users to refer to external quality assessment websites for complete information.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Derived from MODIS/Aqua satellite sensor data, specifically from the sum of 8-day Net Photosynthesis (PSN) products (MYD17A2H).

Freshness

2004-01-03

Geography

Global