VNP43D28: VIIRS Visible Broadband BRDF Isotropic Parameter

NASA/NOAA Suomi NPP VIIRS BRDF/Albedo Parameter 1 VIS product (VNP43D28) provides the isotropic model parameter for the visible broadband (0.64 μm) at 30 arc-second (1,000 meter) resolution globally. This daily product synthesizes 16 days of observations, temporally weighted to the ninth day, and is formatted specifically for climate simulation models on a Climate Modeling Grid. It is one of 39 separate files in the VNP43D suite, each containing a single model parameter for different spectral bands to enable albedo derivation.

Use Cases

• Modeling surface albedo for climate simulations based on the BRDF isotropic parameter for the visible band.
• Analyzing temporal changes in land surface reflectance using a 16-day rolling composite.
• Integrating VIIRS-derived BRDF parameters into broader Earth system models that use the Climate Modeling Grid format.

Strengths

• Provides global coverage at a consistent 30 arc-second (1,000m) resolution.
• Daily production with a 16-day temporal synthesis improves data stability.
• Part of a rigorously documented NASA/NOAA operational product suite with documented algorithm improvements.

Limitations

• Each file contains only one data layer, requiring multiple files for a complete BRDF model.
• Metadata completeness varies across platforms; column names and exact row/size counts are unknown.
• Known issues exist, requiring users to consult external assessment websites for full details.

Provenance

Source

NASA/NOAA Suomi NPP VIIRS sensor, processed by LPCLOUD.

Collection Method

Satellite remote sensing data processed through the VNP43MA1 algorithm to derive BRDF model parameters.

Time Range

Covers the entire Suomi NPP mission period, with daily files.

Freshness

Last updated 2026-04 09 20:42:36.227996 on nasa_earthdata and datagov.

Geography

Global coverage on a Climate Modeling Grid (CMG).