VNP43D22: VIIRS BRDF Isotropic Parameter for Band M10

Global daily data provides the isotropic model parameter for the 1.61 μm band from the Suomi NPP satellite's VIIRS instrument at a 1,000-meter resolution. This single-parameter layer is part of a suite used to derive Bidirectional Reflectance Distribution Function (BRDF) and albedo values for climate simulation models. Data are produced daily using a 16-day temporal composite, weighted to the ninth day.

Use Cases

• Deriving surface albedo for climate models based on the BRDF model parameters.
• Analyzing land surface anisotropy in the shortwave infrared spectrum using the M10 band (1.61 μm).
• Inputting isotropic scattering data into radiative transfer models for the VIIRS instrument.
• Monitoring long-term land surface reflectance changes as part of a global climate modeling grid (CMG).

Strengths

• Provides global coverage on a Climate Modeling Grid (CMG) suitable for climate simulations.
• Offers daily production with a 16-day composite, providing a temporally smoothed product weighted to a central day.
• Represents a specific, calibrated parameter (isotropic) from a well-documented NASA/NOAA operational satellite mission.

Limitations

• Metadata completeness is low: column names, row counts, and exact file sizes are unknown across all platforms.
• Each file contains only one data layer, requiring combination with other files (volumetric, geometric parameters) for full BRDF analysis.
• The dataset has known issues requiring users to consult an external website for complete details.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Derived from Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite.

Time Range

Covers the entire Suomi NPP mission, with daily production.

Freshness

Last updated on 2026-04-09 according to one source, though this appears to be a future date which may indicate a metadata error.

Geography

Global