VNP43D28: BRDF Isotropic Parameter for VIIRS Visible Broadband

30 arc-second (1,000 meter) resolution characterizes the VNP43D28 data product, which provides the Bidirectional Reflectance Distribution Function (BRDF) isotropic parameter for the Visible Infrared Imaging Radiometer Suite (VIIRS) Visible broadband (0.64 μm). This daily, global product is generated using 16 days of data, temporally weighted to the ninth day, and is formatted in a Climate Modeling Grid for climate simulation models. The dataset is part of a larger suite where each file contains a single data layer, and it was decommissioned in July 2025 in favor of Version 2 products.

Use Cases

• Modeling land surface albedo for climate simulations based on the BRDF isotropic parameter.
• Analyzing temporal changes in surface reflectance using the 16-day rolling composite data.
• Integrating with other VNP43D model parameters to derive full BRDF values for the VIIRS VIS band.
• Studying global land surface anisotropy for the visible spectrum at 1km resolution.

Strengths

• Provides global coverage at a consistent 30 arc-second (1km) Climate Modeling Grid resolution.
• Offers daily temporal granularity synthesized from a 16-day data window for stability.
• Dataset is part of a well-documented NASA/NOAA operational product suite with an Algorithm Theoretical Basis Document.

Limitations

• The dataset (Version 1) is decommissioned as of July 31, 2025, directing users to newer versions.
• Metadata on specific column names, row counts, and file sizes is unavailable across all sources.
• Known issues exist, such as reduced data quality due to high aerosol flag activation in upstream Collection 1 products.

Provenance

Source

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

Collection Method

Satellite remote sensing data processed through a BRDF/Albedo algorithm using 16 days of observations.

Time Range

Daily production, but specific date range of available files is not provided.

Freshness

2026-04-09 20:42:17.438430

Geography

Global