VNP43D20: VIIRS BRDF Volumetric Parameter for Band M8

Global daily BRDF volumetric parameter data for VIIRS band M8 (1.240 μm) is produced at 30 arc-second (1,000 meter) resolution, using a 16-day temporal composite weighted to the ninth day. This single-layer product is part of a Climate Modeling Grid suite designed for climate simulation models. The volumetric parameter, alongside isotropic and geometric parameters, is used to derive BRDF and albedo values for this specific near-infrared band.

Use Cases

• Deriving BRDF and albedo values for VIIRS band M8 based on volumetric model parameters.
• Inputting land surface anisotropy data into global climate simulation models.
• Analyzing temporal changes in surface reflectance using a daily, 16-day composite product.
• Studying near-infrared (1.240 μm) reflectance properties of the Earth's surface.

Strengths

• Provides global coverage on a Climate Modeling Grid.
• Offers daily temporal resolution with a 16-day composite for stability.
• Includes improvements from a previous version, such as a better calibration algorithm and improved geolocation accuracy.

Limitations

• Metadata completeness is low; column names and dataset size are unknown across all platforms.
• Each product file contains only one data layer, which may limit immediate multi-band analysis.
• Known issues exist, requiring users to consult an external assessment website.

Provenance

Source

NASA/NOAA Suomi NPP VIIRS instrument.

Collection Method

Produced daily using 16 days of data, temporally weighted to the ninth day.

Freshness

Last updated on 2026-04-09 according to two platforms.

Geography

Global