VNP43D05: BRDF Volumetric Parameter for VIIRS Band M2

Global daily data provides the volumetric parameter for the Bidirectional Reflectance Distribution Function (BRDF) and albedo model for VIIRS band M2 (0.445 μm). This parameter, produced using 16 days of data at 30 arc-second (1,000 meter) resolution, is part of a suite designed for climate simulation models. It is temporally weighted to the ninth day of the aggregation period.

Use Cases

• Deriving BRDF/Albedo values for VIIRS band M2 based on the volumetric parameter combined with isotropic and geometric parameters.
• Climate simulation modeling based on the global Climate Modeling Grid (CMG) coverage.
• Analyzing land surface reflectance and anisotropy changes over time using daily, temporally aggregated data.
• Assessing surface radiative properties for the 0.445 μm wavelength band.

Strengths

• Provides a specific model parameter (volumetric) for a defined spectral band (VIIRS M2 at 0.445 μm).
• Offers global coverage at a consistent 30 arc-second (1,000 meter) resolution.
• Data is produced daily using a 16-day temporal aggregation window, providing a smoothed temporal product.
• The product suite has undergone improvements including a better calibration algorithm and improved geolocation accuracy.

Limitations

• Column names and exact data structure are unknown from the provided sources.
• The dataset consists of a single data layer per file due to large file sizes, which may complicate multi-band analysis.
• Known issues exist, requiring users to consult an external website for complete information.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced from the Suomi NPP VIIRS instrument.

Freshness

2026-03-12 20:07:55.728235

Geography

Global