VNP43D13: VIIRS BRDF Isotropic Parameter for Band M5

NASA/NOAA's Suomi NPP satellite provides daily global BRDF isotropic parameter data for VIIRS band M5 (0.672 μm) at a 30 arc-second (1,000 meter) resolution. This product is part of a suite designed for climate simulation models, using 16 days of temporally weighted data to generate a single parameter layer per file. The isotropic parameter, along with volumetric and geometric counterparts, is essential for deriving accurate land surface reflectance and albedo values.

Use Cases

• Deriving BRDF/Albedo values for VIIRS band M5 based on the isotropic, volumetric, and geometric parameters.
• Inputting land surface anisotropy data into global climate simulation models using the Climate Modeling Grid (CMG).
• Analyzing daily changes in surface reflectance properties using the 16-day temporally weighted data composite.
• Calibrating or validating other satellite-derived reflectance products using the improved calibration algorithm noted in the version history.

Strengths

• Provides a specific isotropic parameter for VIIRS band M5 (0.672 μm) at a consistent 1,000-meter resolution.
• Data is produced daily and covers the entire globe, suitable for continuous climate monitoring.
• Version improvements include an enhanced calibration algorithm and better geolocation accuracy for the entire Suomi NPP mission.

Limitations

• Column names and dataset size (rows, file size) are unknown across all sources, limiting precise structural understanding.
• Each VNP43D product file contains only one data layer, requiring multiple files for a complete parameter set.
• Known issues exist, requiring users to consult an external website for complete information.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from the Suomi NPP VIIRS instrument, processed daily using 16 days of data.

Freshness

2026-03-12 19:57:04.177344

Geography

Global coverage.