VJ143D11: VIIRS BRDF Volumetric Parameter for Band M4

VJ143D11 is a single-layer satellite data product containing the volumetric model parameter for the Bidirectional Reflectance Distribution Function (BRDF) and Albedo for NOAA-20 VIIRS band M4 (0.555 μm). It is produced daily using a 16-day temporal composite at a 30 arc-second (1,000 meter) resolution, weighted to the ninth day, and formatted on a global Climate Modeling Grid (CMG). This parameter, alongside isotropic and geometric parameters, is used to derive surface reflectance and albedo values for climate simulation and land surface monitoring.

Use Cases

• Modeling surface albedo for climate simulations based on the global Climate Modeling Grid (CMG) format.
• Analyzing temporal changes in land surface reflectance using the daily product with a 16-day composite window.
• Deriving BRDF-corrected reflectance values for VIIRS band M4 by combining the volumetric parameter with isotropic and geometric parameters.
• Studying vegetation dynamics and surface anisotropy at a 1-kilometer resolution.

Strengths

• Provides global coverage on a standardized Climate Modeling Grid designed for climate simulation models.
• Offers daily temporal resolution using a weighted 16-day composite to reduce noise, as described in the product methodology.
• Part of a consistent, version-controlled product suite (V002) with documented improvements in calibration and geolocation.

Limitations

• Metadata completeness is low: specific column names, row counts, and file sizes are not provided on any platform.
• Each product file contains only one data layer, requiring users to manage multiple files for a complete parameter set.
• Documentation for known issues is external, requiring users to visit a separate website for full details.

Provenance

Source

LPCLOUD (via NASA Earthdata and Data.gov)

Collection Method

Satellite remote sensing data from the NOAA-20 VIIRS instrument, processed using a documented BRDF/Albedo algorithm.

Time Range

Daily production, using a rolling 16-day data composite.

Freshness

2026-04-09 21:06:46.824311

Geography

Global