VNP43D47: VIIRS Valid Observation Quality for Band M7

Global daily data at 30 arc-second (1,000 meter) resolution provides a quality layer for valid observations from the VIIRS M7 band over a 16-day retrieval period. This product is part of a suite designed for climate simulation models, using a Climate Modeling Grid (CMG) that covers the entire Earth. The dataset is temporally weighted to the ninth day of the 16-day composite period.

Use Cases

• Assessing input data quality for BRDF model inversions based on the valid observation layer.
• Monitoring temporal changes in surface reflectance quality for VIIRS band M7 over a 16-day window.
• Supporting climate model parameterization using globally gridded, daily surface property data.
• Investigating aerosol impacts on surface anisotropy retrievals over arid, bright regions.

Strengths

• Provides global coverage via a Climate Modeling Grid (CMG) for consistent climate modeling use.
• Offers daily temporal resolution with a 16-day composite window, weighted to a central day.
• Cross-platform presence on NASA Earthdata and Data.gov signals its importance and official provenance.

Limitations

• The VNP43D47 Version 1 product was decommissioned on July 31, 2025, directing users to newer versions.
• Metadata is incomplete: column names, row counts, and file sizes are not specified in any source.
• Known issues exist, such as reduced high-quality BRDF inversions due to high aerosol flag activation in upstream data.

Provenance

Source

NASA/NOAA Suomi NPP satellite, processed by LPCLOUD.

Collection Method

Produced daily from Visible Infrared Imaging Radiometer Suite (VIIRS) sensor data.

Time Range

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

Freshness

2026-04-09 21:02:12.154391

Geography

Global