VJ143D22: NOAA-20 VIIRS BRDF Isotropic Parameter for Band M10

NOAA-20 VIIRS satellite data provides a single model parameter, the isotropic component, for calculating how the Earth's surface reflects light at a 1.61 μm wavelength. This daily, global product is generated at a 1-kilometer resolution using a rolling 16-day window of observations, specifically weighted to represent the ninth day. It is part of a 39-file suite designed for climate simulation models, enabling the derivation of surface albedo and anisotropy.

Use Cases

• Deriving surface albedo for climate models based on the isotropic, volumetric, and geometric BRDF parameters.
• Analyzing temporal changes in land surface reflectance at a 1.61 μm wavelength (M10 band).
• Inputting pre-calculated BRDF parameters into radiative transfer models for atmospheric correction.
• Studying surface anisotropy and directional reflectance effects on a global, 1-km scale.
• Assessing land quality and surface properties as part of the MODIS/VIIRS Land Quality Assessment framework.

Strengths

• Provides daily, global coverage at a consistent 1-kilometer (30 arc-second) spatial resolution.
• Data is part of a rigorously versioned product suite (V002) with documented improvements in calibration and geolocation.
• Temporally composited using a 16-day window to reduce noise and fill data gaps.
• Explicitly designed for and formatted in a Climate Modeling Grid (CMG) for direct use in climate simulations.

Limitations

• Each file contains only a single data layer (one parameter for one band), requiring multiple files for a complete analysis.
• Critical metadata such as row count, file size, and specific license terms are not provided across the listed platforms.
• Known issues exist and require users to consult an external website for complete information.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Processed from NOAA-20 Visible Infrared Imaging Radiometer Suite (VIIRS) sensor data.

Time Range

Daily production, using a rolling 16-day input window.

Freshness

2026-04-09 21:07:40.778160

Geography

Global