VJ143D77: White-Sky Albedo for VIIRS NIR Band

Daily 30 arc-second (1,000 meter) resolution white-sky albedo data for the VIIRS near-infrared broadband (0.865 μm) is produced using a 16-day temporal composite weighted to the ninth day. The dataset is part of the VJ143D BRDF/Albedo product suite, provided on a global Climate Modeling Grid for use in climate simulation models. It includes albedo values for multiple VIIRS spectral bands and the Day/Night Band, derived from NOAA-20 satellite observations.

Use Cases

• Modeling surface-atmosphere interactions in climate simulations based on the global Climate Modeling Grid (CMG) format.
• Analyzing temporal trends in land surface reflectance using the daily product with a 16-day composite window.
• Comparing white-sky albedo (bihemispherical reflectance) with black-sky albedo for different VIIRS spectral bands.
• Incorporating near-infrared broadband albedo into energy balance studies for vegetation and land cover analysis.

Strengths

• Provides global coverage at a consistent 30 arc-second (1,000 meter) spatial resolution.
• Offers daily temporal resolution using a 16-day composite to reduce noise, with data weighted to a central ninth day.
• Cross-platform presence on NASA Earthdata and Data.gov indicates established use and validation.

Limitations

• Metadata completeness is low: column names, row counts, and file sizes are unknown across all sources.
• Each product file contains only one data layer due to large file sizes, which may complicate multi-band analysis.
• Known issues exist and require referral to an external MODIS/VIIRS Land Quality Assessment website for details.

Provenance

Source

LPCLOUD (NASA Earthdata), derived from NOAA-20 VIIRS sensor.

Collection Method

Satellite remote sensing data processed using the VJ143D BRDF/Albedo algorithm.

Freshness

2026-04-09 20:48:14.988287

Geography

Global