VJ143D62: Black-Sky Albedo for VIIRS Band M11 Daily Global Climate Grid

NOAA-20 VIIRS VJ143D62 provides daily black-sky albedo (directional hemispherical reflectance) for the M11 band (2.25 μm) at a 30 arc-second (1,000 meter) resolution. The product is generated using a 16-day temporal composite weighted to the ninth day and is formatted on a global Climate Modeling Grid (CMG) for use in climate simulation models. This dataset is part of a larger BRDF/Albedo product suite that includes values for nine VIIRS moderate bands, visible/NIR/shortwave bands, and the Day/Night Band.

Use Cases

• Incorporating land surface albedo into climate simulation models based on the Climate Modeling Grid (CMG) format.
• Analyzing temporal trends in surface reflectance for band M11 (2.25 μm) using the daily, 16-day composite product.
• Studying black-sky albedo (BSA) as a function of solar zenith angle for radiative transfer calculations.
• Comparing albedo values across the VIIRS spectral suite, including the Day/Night Band (DNB).

Strengths

• Provides global coverage on a standardized Climate Modeling Grid (CMG) designed for climate models.
• Offers daily temporal resolution using a consistent 16-day composite methodology.
• Algorithm benefits from improvements in calibration and geolocation accuracy carried over from the S-NPP VIIRS V002 version.

Limitations

• Metadata on row count, file size, and specific columns is missing or listed as 'unknown' across all platforms.
• Each product file contains only a single data layer due to large file sizes, requiring multiple files for full spectral analysis.
• License is ambiguously listed as 'other-license-specified' without explicit details.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Produced daily from NOAA-20 Visible Infrared Imaging Radiometer Suite (VIIRS) sensor data using a BRDF/Albedo algorithm.

Time Range

Daily production, using a rolling 16-day data composite.

Freshness

2026-04-09 21:08:05.783812

Geography

Global