MOD17A3HGF: Annual Net Primary Production Gap-Filled Global 500m

Global annual Net Primary Production (NPP) data is provided at a 500-meter pixel resolution, derived from the Terra satellite's MODIS sensor. The dataset is a gap-filled, quality-controlled product that sums 8-day Net Photosynthesis values and uses interpolated inputs for poor-quality Leaf Area Index and Fraction of Photosynthetically Active Radiation pixels. It is generated yearly after all annual input data is available, preventing near-real-time access.

Use Cases

• Modeling global carbon budgets based on annual Net Primary Production.
• Assessing ecosystem health and productivity trends using gap-filled, quality-controlled geospatial data.
• Calibrating terrestrial biosphere models with updated Biome Property look-up tables (BPLUT) and meteorological inputs.

Strengths

• Provides global coverage at a native 500-meter spatial resolution.
• Implements quality control and gap-filling via linear interpolation for poor-quality input pixels.
• Uses updated Biome Property look-up tables (BPLUT) and Global Modeling and Assimilation Office (GMAO) meteorological data.

Limitations

• The dataset is not available in near-real-time, as it is generated only at the end of each calendar year.
• The product version described (V006) was decommissioned on July 31, 2023, directing users to a newer version.
• Metadata for specific column names, row counts, and file sizes is unavailable across all sources.

Provenance

Source

LPCLOUD via NASA Earthdata and Data.gov.

Collection Method

Derived from MODIS Terra satellite 8-day Leaf Area Index/Fraction of Photosynthetically Active Radiation (MOD15A2H) and Net Photosynthesis (MOD17A2H) products.

Freshness

2026-04-10 00:06:36.652063

Geography

Global