VJ143D57: NOAA-20 VIIRS Black-Sky Albedo for Band M4

NOAA-20 VIIRS VJ143D57 provides daily black-sky albedo (BSA) values for the VIIRS moderate resolution band M4 (0.555 μm). The dataset is produced using a 16-day temporal composite at a 30 arc second (1,000 meter) resolution and is formatted on a global Climate Modeling Grid (CMG). It is part of a larger product suite that includes albedo for nine VIIRS bands and the Day/Night Band.

Use Cases

• Climate model parameterization based on global, gridded albedo data.
• Analysis of surface reflectance anisotropy using the black-sky albedo metric.
• Monitoring land surface changes over time using daily, temporally-weighted albedo composites.
• Validation of other albedo products using the VIIRS band M4 (0.555 μm) specific data layer.

Strengths

• Provides global coverage on a Climate Modeling Grid (CMG) suitable for climate simulations.
• Offers daily data products with a consistent 16-day temporal weighting methodology.
• Includes albedo for the VIIRS Day/Night Band (DNB), beyond the standard moderate resolution bands.

Limitations

• Each product file contains only one data layer, likely limiting simultaneous multi-band analysis.
• Metadata completeness is low; column names, row counts, and size are unknown across all sources.
• Known issues exist, requiring users to consult an external website for full details.

Provenance

Source

LPCLOUD (NASA Earthdata)

Collection Method

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

Freshness

2026-04-09 20:51:20.835577

Geography

Global