MODIS/Aqua Gross Primary Productivity: 8-Day Global Vegetation Data at 500m

The MYD17A2H Version 6.1 product provides cumulative 8-day composites of Gross Primary Productivity (GPP) and Net Photosynthesis (PSN) at a 500-meter pixel resolution. This data is produced by NASA's Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) and is based on the radiation use efficiency concept. The dataset includes a quality control layer and was last updated in March 2026.

Use Cases

• Modeling terrestrial carbon cycle processes based on Gross Primary Productivity (GPP) values.
• Calculating vegetation energy and water cycles based on the radiation use efficiency concept.
• Analyzing plant photosynthesis and respiration dynamics based on Net Photosynthesis (PSN) data.
• Assessing data quality for ecological models using the provided PSN Quality Control (QC) layer.

Strengths

• Provides data at a 500-meter spatial resolution, offering moderate detail for global analysis.
• Includes a dedicated quality control (QC) layer for both GPP and PSN data.
• Version 6.1 incorporates specific calibration improvements, including a polarization correction for reflective solar bands.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite observations from the Aqua Moderate Resolution Imaging Spectroradiometer (MODIS).

Time Range

Cumulative 8-day composites; specific temporal coverage is not detailed.

Freshness

Last updated 2026-03-13 00:24:16.945279; freshness should be verified.

Geography

Global