VJ143D43: VIIRS BRDF/Albedo Valid Observations for Band M2

NOAA-20 VIIRS VJ143D43 provides a daily, global layer of valid observation quality for the M2 spectral band, synthesized from a 16-day rolling window. This 30 arc-second (1,000 meter) resolution product is part of a Climate Modeling Grid suite designed for climate simulation models. The data are temporally weighted to the ninth day of each 16-day retrieval period.

Use Cases

• Assessing data quality for BRDF/albedo retrievals based on the valid observation layer for band M2.
• Inputting validated surface reflectance into climate simulation models using the Climate Modeling Grid format.
• Monitoring temporal changes in surface properties by analyzing the daily, 16-day composite data stream.
• Improving downstream products like vegetation indices by leveraging the corrected aerosol quantity flag.

Strengths

• Provides daily global coverage at a consistent 30 arc-second (1,000 meter) spatial resolution.
• Incorporates algorithm improvements from S-NPP VIIRS V002, including better calibration and geolocation accuracy.
• Designed specifically for climate simulation models via the Climate Modeling Grid (CMG) format.

Limitations

• Metadata completeness is low; column names, row counts, and exact file sizes are not provided by any source.
• The dataset is a single-layer extract from a larger product suite, which may limit direct analysis without the companion layers.
• Known issues exist and require consultation of an external website for full details.

Provenance

Source

NOAA-20 Visible Infrared Imaging Radiometer Suite (VIIRS), processed by LPCLOUD.

Collection Method

Produced daily using 16 days of data, temporally weighted to the ninth day.

Time Range

Daily production; temporal coverage of the underlying data is not explicitly stated.

Freshness

Last updated metadata indicates 2026-04-09.

Geography

Global coverage.