VJ143D51: VIIRS Daily Global Land Surface Reflectance Quality for Climate Models

VJ143D51 is a daily global dataset at 1,000-meter resolution, produced by the NOAA-20 VIIRS sensor using a 16-day temporal composite weighted to the ninth day. It provides a valid observation quality layer for the Day/Night Band (DNB), part of a suite of BRDF and albedo parameters formatted on a Climate Modeling Grid for climate simulation. The product includes algorithm improvements from the S-NPP VIIRS V002 version, such as enhanced calibration and geolocation accuracy.

Use Cases

• Assessing data quality for nighttime light studies based on the Day/Night Band (DNB) valid observation layer.
• Inputting validated surface reflectance parameters into global climate models based on the Climate Modeling Grid (CMG) format.
• Monitoring temporal changes in land surface anisotropy using the 16-day composite and daily production cycle.
• Correcting downstream vegetation index products based on improved aerosol flag corrections described in the algorithm changes.

Strengths

• Provides global coverage at a consistent 30 arc-second (1,000-meter) spatial resolution.
• Incorporates algorithm improvements from a prior mission version, including better calibration and geolocation.
• Is produced daily with a 16-day composite, offering a balance between temporal frequency and observation density.
• Is part of a multi-platform product suite, indicating established importance and validation.

Limitations

• Metadata for row count, file size, and specific column names is unavailable across all sources.
• The license is ambiguously listed as 'other-license-specified' without explicit terms.
• Documentation of known issues is external, requiring users to visit a separate website for complete information.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite remote sensing from the NOAA-20 Visible Infrared Imaging Radiometer Suite (VIIRS) sensor.

Time Range

Daily production, using a rolling 16-day composite.

Freshness

2026-04-09 21:05:52.449096

Geography

Global