VNP43D24: VIIRS BRDF Geometric Parameter for Band M10

VNP43D24 is a decommissioned satellite data product containing the geometric parameter for the Bidirectional Reflectance Distribution Function (BRDF) and albedo model for VIIRS band M10 (1.61 μm). It was produced daily at a 30 arc-second (1,000 meter) resolution using a 16-day temporal window, weighted to the ninth day, and formatted in a global Climate Modeling Grid (CMG). This single-layer parameter, used with isotropic and volumetric parameters, supports the derivation of surface reflectance and albedo values for climate simulation models.

Use Cases

• Deriving surface albedo for climate models based on the geometric BRDF parameter for the 1.61 μm wavelength.
• Monitoring temporal changes in land surface reflectance using a daily, globally-complete Climate Modeling Grid.
• Assessing the impact of aerosol contamination on BRDF/albedo products, as noted in the known issues regarding the high aerosol flag.

Strengths

• Provides a specific, physically-based model parameter (geometric) for a key VIIRS spectral band (M10 at 1.61 μm).
• Offers global coverage at a consistent 1,000-meter resolution in a Climate Modeling Grid format designed for climate studies.
• Uses a sophisticated temporal compositing method, weighting 16 days of observations to a central date to reduce noise.

Limitations

• The dataset is explicitly decommissioned (as of July 31, 2025), directing users to newer Version 2 products.
• Metadata on specific columns, row counts, and file sizes is unavailable across all sources.
• Contains a known quality issue where an upstream high aerosol flag abnormally reduced the number of acceptable observations used in processing.

Provenance

Source

National Aeronautics and Space Administration (NASA) / National Oceanic and Atmospheric Administration (NOAA) Suomi NPP satellite.

Collection Method

Derived from Visible Infrared Imaging Radiometer Suite (VIIRS) observations processed through a BRDF/albedo model.

Freshness

Last updated 2026-03-12 according to one source, but the product itself is decommissioned.

Geography

Global