VJ143D14: Volumetric BRDF Parameter for VIIRS Band M5

NOAA-20 VIIRS BRDF/Albedo Model Parameter 2 Band M5 (VJ143D14) is a daily global dataset providing the volumetric parameter for the Bidirectional Reflectance Distribution Function at a 30 arc-second (1,000 meter) resolution. It is part of a 39-file suite of model parameters used to derive surface albedo and anisotropy for climate simulation models. The product is generated daily using a 16-day temporal composite, weighted to the ninth day, and is formatted for a global Climate Modeling Grid.

Use Cases

• Deriving surface albedo for VIIRS band M5 (0.672 μm) based on the combination of isotropic, volumetric, and geometric BRDF parameters.
• Inputting land surface reflectance anisotropy into climate simulation models based on the global Climate Modeling Grid (CMG) format.
• Analyzing temporal changes in land surface properties based on the daily production cycle using a 16-day data composite.
• Calibrating or validating other satellite-derived albedo products based on the documented VIIRS algorithm improvements.

Strengths

• Provides a specific, foundational parameter (volumetric) for a well-defined spectral band (M5 at 0.672 μm) within a standardized BRDF/albedo modeling suite.
• Has a documented, multi-platform presence indicating its established use and importance in the earth science community.
• Incorporates algorithm improvements from a previous version, including better calibration coefficients and geolocation accuracy.

Limitations

• Critical metadata is missing from all sources: specific column/data layer names, row counts, file sizes, and a clear license definition are not provided.
• Each product file contains only one data layer, requiring users to manage and combine multiple files (VJ143D01-VJ143D39) for a complete analysis.
• The dataset description references known issues but does not specify them, requiring users to consult an external website for complete information.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite remote sensing data from the NOAA-20 VIIRS instrument, processed through a daily algorithm using a 16-day composite.

Time Range

Daily production; temporal weighting to the ninth day of a 16-day period.

Freshness

2026-04-09 21:06:41.848117

Geography

Global coverage on a Climate Modeling Grid (CMG).