VJ143DNBA2: VIIRS DNB BRDF and Albedo Quality at 1km Resolution

Global daily data at 1-kilometer resolution provides quality metrics for Bidirectional Reflectance Distribution Function (BRDF) and albedo derived from the NOAA-20 VIIRS Day/Night Band. The product is generated daily using a 16-day rolling window of observations, weighted to the ninth day, to ensure continuity with NASA's MODIS BRDF/Albedo suite. It contains seven Science Dataset layers, including band quality, days of valid observation, and classification flags for land/water and snow.

Use Cases

• Assessing data quality for surface albedo studies based on the BRDF/Albedo band quality layer.
• Tracking temporal observation coverage for the VIIRS DNB using the days of valid observation layer.
• Classifying surface conditions for albedo modeling using the land water type and snow BRDF albedo class flags.
• Estimating instantaneous actual (blue-sky) albedo by applying a polynomial to the provided black-sky and white-sky albedo layers.

Strengths

• Provides continuity with the established NASA MODIS BRDF/Albedo product suite, ensuring long-term data compatibility.
• Employs a sophisticated, kernel-driven RossThick/Li-Sparse-Reciprocal (RTLSR) BRDF model for accurate surface anisotropy correction.
• Offers a specific 1-kilometer spatial resolution and a daily production cycle with a 16-day temporal composite.

Limitations

• Metadata for row count, file size, and specific column names is unavailable across all sources, limiting precise technical assessment.
• The license is ambiguously listed as 'other-license-specified' without explicit terms provided.
• Documentation references known issues but does not describe them within the provided metadata.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite remote sensing data from the NOAA-20 Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band, processed with the VJ143 algorithm.

Time Range

Daily production, using a rolling 16-day window of observations.

Freshness

2026-04-09 21:04:27.722354

Geography

Global