MYD17A3HGF: Annual Net Primary Production at 500m

MYD17A3HGF Version 6 provides annual Net Primary Production (NPP) data at a 500-meter pixel resolution globally. It is derived from the sum of 8-day Net Photosynthesis products from the MODIS/Aqua sensor, with gap-filling applied to poor-quality LAI/FPAR inputs via linear interpolation. This dataset is generated at the end of each calendar year and was decommissioned on July 31, 2023, with users directed to Version 6.1.

Use Cases

• Modeling terrestrial carbon budgets based on annual Net Primary Production.
• Assessing global vegetation productivity changes using gap-filled 500m resolution data.
• Validating ecosystem models with MODIS-derived photosynthesis and respiration metrics.

Strengths

• Provides gap-filled data using quality control labels and linear interpolation for poor-quality inputs.
• Uses updated Biome Property look-up tables (BPLUT) and meteorological data from Version 6.
• Generated at the native 500m resolution of the MODIS sensor.

Limitations

• Dataset is decommissioned (as of July 31, 2023), directing users to a newer version.
• Not available in near-real-time, as it is generated only at the end of each calendar year.
• Column names and specific row/size metadata are not provided in the sources.

Provenance

Source

LPCLOUD / NASA MODIS Aqua Satellite

Collection Method

Derived from 8-day MODIS MYD17A2H and MYD15A2H products, summed annually.

Freshness

Last updated metadata dates conflict: one source shows 2026-04-10, another shows 2021-12-31.

Geography

Global