VNP43D82: Daily Global Nadir-Adjusted Surface Reflectance at 1km

NASA/NOAA's Suomi NPP satellite provides daily global land surface reflectance data for the 0.488 μm blue-green band, corrected to a nadir view at solar noon. This VNP43D82 product is generated daily using a 16-day rolling window at a 30 arc-second (1,000 meter) resolution, specifically formatted for climate simulation models on a global Climate Modeling Grid. It is part of a suite of ten NBAR products that includes nine moderate resolution bands and the Day/Night Band.

Use Cases

• Modeling land surface albedo for climate simulations based on the Climate Modeling Grid (CMG) format.
• Monitoring vegetation health and water bodies using the corrected reflectance in the 0.488 μm (blue-green) band.
• Assessing surface anisotropy and BRDF effects for improved satellite data interoperability.
• Studying aerosol impacts on surface reflectance using the corrected aerosol quantity flag over bright surfaces.

Strengths

• Provides daily global coverage at a consistent 1,000-meter resolution.
• Data is corrected for view-angle effects using a sophisticated BRDF/Albedo modeling algorithm (NBAR).
• The product suite has undergone specific improvements, including better calibration coefficients and geolocation accuracy for the entire Suomi NPP mission.

Limitations

• Critical metadata is missing or conflicting across platforms: row/column counts, author, and precise license terms are unavailable.
• Each daily file contains only one data layer (Band M3), requiring users to manage multiple files for multi-spectral analysis.
• Known data quality issues exist, requiring users to consult an external website for complete information.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite data from the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP platform, processed with a BRDF/Albedo algorithm.

Time Range

Covers the entire Suomi NPP mission with daily updates; specific start date not provided.

Freshness

2026-04-09 (from datagov)

Geography

Global coverage.