VJ143D64: Black-Sky Albedo for VIIRS NIR Band

Global daily black-sky albedo data for the near-infrared band (0.865 μm) is produced from the NOAA-20 VIIRS sensor. The dataset uses a 16-day temporal composite weighted to the ninth day and is provided at a 30 arc-second (approximately 1 km) resolution on a Climate Modeling Grid. It is part of a larger product suite that includes albedo for multiple spectral bands and the Day/Night Band.

Use Cases

• Climate simulation modeling based on the global Climate Modeling Grid (CMG) format.
• Analyzing surface reflectance anisotropy using the provided black-sky albedo (BSA) values.
• Monitoring land surface changes over time using the daily, temporally composited data.
• Comparing albedo across spectral bands using the related products in the VJ143D suite.

Strengths

• Provides a specific physical measurement (black-sky albedo) for a defined spectral band (NIR at 0.865 μm).
• Offers global coverage at a consistent 1 km resolution, suitable for climate-scale analysis.
• Is part of a multi-platform, standardized product suite (VJ143D) from a major satellite program (NOAA-20 VIIRS).

Limitations

• Column names and exact data structure are not described in the provided metadata.
• File sizes are described as large, with each product containing only one data layer, which may complicate multi-band analysis.
• The 'last updated' date conflicts between sources (2026-04-09 on some, null on others).

Provenance

Source

NOAA-20 VIIRS sensor, processed by LPCLOUD.

Collection Method

Derived from 16 days of satellite data using a temporally weighted composite algorithm.

Freshness

2026-04-09 20:51:00.419677

Geography

Global