VJ143D35: BRDF Volumetric Parameter for VIIRS Shortwave Broadband

NOAA-20 VIIRS VJ143D35 provides the volumetric parameter for deriving shortwave broadband albedo at 1.61 μm. This daily product synthesizes 16 days of observations into a single 30 arc-second global Climate Modeling Grid. The volumetric parameter, combined with isotropic and geometric parameters, is essential for modeling surface reflectance anisotropy.

Use Cases

• Deriving surface albedo for climate models based on the three BRDF model parameters.
• Analyzing temporal changes in land surface reflectance using daily, temporally-weighted composites.
• Incorporating shortwave broadband reflectance data into global climate simulation grids.
• Studying surface anisotropy and bidirectional reflectance distribution function (BRDF) for the VIIRS Day/Night Band.

Strengths

• Provides a specific volumetric parameter for the VIIRS shortwave broadband (1.61 μm).
• Offers global coverage at a consistent 30 arc-second (1,000 meter) resolution.
• Is part of a daily updated time series using a 16-day data composite.

Limitations

• Column names and exact data structure are not provided in any source.
• Each product file contains only one data layer, requiring multiple files for complete analysis.
• Known issues exist, requiring users to consult an external assessment website.

Provenance

Source

LPCLOUD via NASA Earthdata and Data.gov

Collection Method

Produced daily from NOAA-20 VIIRS sensor data.

Time Range

Daily production, using a rolling 16-day window.

Freshness

2026-04-09 20:50:01.862849

Geography

Global