VNP43D26: BRDF Volumetric Parameter for VIIRS Band M11

NASA/NOAA Suomi NPP satellite provides daily volumetric BRDF model parameters for the 2.25 μm band at 1,000-meter resolution globally. Each file contains a single data layer for the volumetric parameter, part of a suite of 39 files covering isotropic, volumetric, and geometric parameters for multiple spectral bands. The data are temporally weighted to the ninth day of a 16-day composite and formatted for climate modeling grids.

Use Cases

• Climate simulation modeling based on the global Climate Modeling Grid (CMG) format.
• Deriving land surface albedo values based on the volumetric BRDF parameter combined with isotropic and geometric parameters.
• Analyzing surface reflectance anisotropy for VIIRS band M11 (2.25 μm).
• Monitoring changes in land surface radiative properties over time using the daily, temporally-weighted product.

Strengths

• Provides a specific volumetric BRDF parameter for a discrete spectral band (M11 at 2.25 μm).
• Offers global coverage at a consistent 30 arc-second (1,000 meter) resolution.
• Is part of a systematically produced daily product suite (VNP43D01 through VNP43D39).

Limitations

• Metadata completeness is low; specific column names, row counts, and file sizes are unknown across all sources.
• The dataset consists of single-layer files, which may require combining multiple files (VNP43D01-39) for full analysis.
• Documentation gaps exist; detailed methodology requires consulting external product pages and an Algorithm Theoretical Basis Document.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced daily from 16 days of data from the Suomi NPP VIIRS instrument.

Freshness

2026-04-09 20:53:09.597046

Geography

Global