VJ143D44: VIIRS BRDF/Albedo Valid Observation Band M3

NOAA-20 VIIRS satellite data product VJ143D44 provides a daily global layer of valid observation quality for band M3, used in Bidirectional Reflectance Distribution Function (BRDF) and albedo calculations. It is generated from a 16-day rolling window of data at a 30 arc-second (1,000 meter) resolution and formatted on a Climate Modeling Grid (CMG). The product is part of a suite of parameters supporting climate simulation models.

Use Cases

• Assessing data quality for albedo retrievals based on the valid observation quality layer.
• Inputting temporally weighted reflectance data into climate simulation models based on the CMG format.
• Monitoring changes in surface reflectance over time using the 16-day rolling composite.
• Evaluating algorithm improvements, such as calibration and geolocation accuracy, for downstream products.

Strengths

• Provides global coverage on a Climate Modeling Grid suitable for climate simulations.
• Incorporates algorithm improvements from version V002, including better calibration coefficients and geolocation accuracy.
• Is produced daily using a 16-day temporal composite, offering a balance between recent data and temporal stability.

Limitations

• Specific column names and data layer structure are not detailed in the provided metadata.
• Dataset size and row counts are unknown across all sources.
• Known issues exist and require external consultation of a separate assessment website.

Provenance

Source

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

Collection Method

Produced daily from satellite observations using a defined algorithm.

Time Range

Daily production with a 16-day data retrieval period.

Freshness

Last updated metadata date is 2026-04-09 20:48:57.837067.

Geography

Global.