VJ143D48: VIIRS Band M8 Valid Observation Quality Layer

The NOAA-20 Suomi NPP VIIRS BRDF/Albedo Valid Observation Band M8 product (VJ143D48) is a daily global dataset providing a quality layer for valid observations over a 16-day retrieval period. It is part of a suite of Climate Modeling Grid (CMG) products designed for climate simulation models at a 30 arc second (1,000 meter) resolution. The data are temporally weighted to the ninth day of the retrieval period.

Use Cases

• Assessing data quality for VIIRS band M8 reflectance retrievals based on the valid observation quality layer.
• Inputting validated surface reflectance parameters into climate simulation models using the Climate Modeling Grid (CMG) format.
• Monitoring changes in land surface radiative properties over a 16-day period using the temporally weighted data.
• Evaluating the impact of aerosol corrections on downstream products like vegetation indices, as referenced in the algorithm improvements.

Strengths

• Provides global coverage at a consistent 30 arc second (1,000 meter) resolution.
• Incorporates algorithm improvements including better calibration coefficients and geolocation accuracy for the entire NOAA-20 mission.
• Is produced daily, offering a regular temporal update cycle.

Limitations

• Specific column names and data structure are not provided in the available metadata.
• The dataset's size and row count are unknown.
• Known issues exist, requiring users to consult an external quality assessment website.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced daily from NOAA-20 Suomi NPP VIIRS satellite sensor data using a 16-day retrieval period.

Freshness

2026-03-12 20:03:02.525982

Geography

Global