VJ143D71: White-Sky Albedo for VIIRS Band M5

NOAA-20 VIIRS VJ143D71 provides daily white-sky albedo (WSA) values for the M5 band (0.672 μm) at a 30 arc-second (1,000 meter) resolution. This product is part of a global Climate Modeling Grid (CMG) suite, generated using a 16-day rolling window temporally weighted to the ninth day. It supports climate simulation models by quantifying bihemispherical reflectance in the absence of direct solar illumination.

Use Cases

• Inputting surface reflectance parameters into global climate simulation models based on the Climate Modeling Grid (CMG) format.
• Analyzing temporal changes in land surface albedo using the daily product generated from a 16-day data composite.
• Comparing white-sky albedo (bihemispherical reflectance) with black-sky albedo for the VIIRS moderate resolution bands.
• Studying spectral reflectance in the red wavelength (0.672 μm) for applications in vegetation or land cover monitoring.

Strengths

• Provides global coverage at a consistent 30 arc-second (1,000 meter) spatial resolution.
• Incorporates algorithmic improvements from the S-NPP VIIRS V002 version, including enhanced calibration and geolocation.
• Is part of a multi-band albedo product suite (VJ143D54-VJ143D79) that includes the VIIRS Day/Night Band (DNB).

Limitations

• Specific column names, row counts, and file sizes are not provided in any source.
• The dataset's license is ambiguously noted as 'other-license-specified' without details.
• Each large file contains only one data layer, which may limit concurrent analysis of multiple bands.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced daily from NOAA-20 VIIRS sensor data using a BRDF/Albedo algorithm.

Freshness

2026-03-12 20:02:38.111373

Geography

Global