VJ143D87: Nadir-Adjusted Reflectance for VIIRS Band M10

NOAA-20 VIIRS VJ143D87 provides Nadir BRDF-Adjusted Reflectance (NBAR) values for the M10 band (1.61 μm) at a 30 arc-second resolution. The product is generated daily using a 16-day temporal composite weighted to the ninth day and is formatted on a global Climate Modeling Grid. NBAR values model reflectances as if collected from a nadir view at local solar noon, removing view angle effects.

Use Cases

• Climate simulation modeling based on the global Climate Modeling Grid (CMG) format.
• Monitoring land surface reflectance changes over time based on daily composites using 16 days of data.
• Analyzing surface properties in the 1.61 μm spectral band for applications like vegetation or snow studies.
• Comparing nadir-adjusted reflectance values across different VIIRS bands within the VJ143D product suite.

Strengths

• Provides data at a consistent 30 arc-second (1,000 meter) spatial resolution.
• Offers daily global coverage formatted specifically for climate models via the Climate Modeling Grid.
• The NBAR algorithm corrects for view angle effects to simulate nadir-view reflectance at solar noon.

Limitations

• The dataset contains only one data layer per file, limiting simultaneous multi-band analysis.
• Metadata for row count, file size, and specific columns is unavailable across all platforms.
• Known issues exist, requiring users to consult external websites for complete information.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced daily from NOAA-20 VIIRS sensor data using the NBAR algorithm.

Freshness

2026-04-09 20:50:42.108009

Geography

Global