VNP43IA2: VIIRS BRDF/Albedo Quality Daily Global 500m Grid

NASA/NOAA Suomi NPP VIIRS VNP43IA2 Version 1 is a decommissioned satellite data product providing Bidirectional Reflectance Distribution Function (BRDF) and Albedo quality information at a 500-meter resolution. It is produced daily using a 16-day temporal window weighted to the ninth day and contains 11 Science Dataset layers. The product uses the RossThick/Li-Sparse-Reciprocal kernel-driven BRDF model to reconstruct surface anisotropic effects and compute albedo.

Use Cases

• Correcting directional reflectance to a common view geometry based on the BRDF model parameters.
• Estimating black-sky albedo at any solar illumination angle using the BRDF model parameters with a polynomial.
• Manually estimating instantaneous actual albedo (blue-sky albedo) using the black-sky and white-sky albedo layers.
• Assessing band quality and days of valid observation within a 16-day period for VIIRS imagery bands.

Strengths

• Provides a specific spatial resolution of 500 meters.
• Uses a defined 16-day temporal window weighted to the ninth day for daily production.
• Contains 11 Science Dataset layers as specified in the description.

Limitations

• The dataset is explicitly decommissioned (July 31, 2025), limiting current utility.
• Column names and dataset size/row counts are unknown across all sources.
• License information is incomplete, with one source stating 'other-license-specified' and others stating 'None'.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced from NASA/NOAA Suomi NPP Visible Infrared Imaging Radiometer Suite (VIIRS) satellite data.

Freshness

2026-04-09 21:03:55.824739

Geography

Global