VNP43D87: Nadir-Adjusted Surface Reflectance for VIIRS Band M10

VNP43D87 provides daily Nadir BRDF-Adjusted Reflectance (NBAR) for the VIIRS M10 band at 1.61 μm, processed at a 30 arc-second (1,000 meter) global resolution. Each daily product synthesizes 16 days of observations, temporally weighted to the ninth day, and is formatted for Climate Modeling Grids (CMG). This dataset is part of a BRDF/Albedo product suite designed to remove view-angle effects, modeling surface reflectance as if observed from nadir at local solar noon.

Use Cases

• Modeling land surface albedo and anisotropy for climate simulations based on the Climate Modeling Grid (CMG) format.
• Analyzing temporal changes in surface reflectance at 1.61 μm for vegetation or snow studies based on the daily, 16-day composite NBAR product.
• Correcting for bidirectional reflectance effects in satellite imagery to standardize observations to a nadir view at solar noon.
• Integrating with other VNP43D NBAR bands (M1-M5, M7, M8, M11, DNB) for multi-spectral land surface analysis.

Strengths

• Provides global coverage at a consistent 30 arc-second (1,000 meter) spatial resolution.
• Offers daily temporal granularity synthesized from a 16-day observation window for improved data stability.
• Is part of a cross-platform, well-documented NASA/NOAA product suite with a defined algorithm (ATBD).

Limitations

• This Version 1 product was officially decommissioned on July 31, 2025, directing users to newer Version 2 products.
• Known data quality issues exist due to an abnormally high aerosol flag in upstream inputs, reducing acceptable observations over arid regions.
• Each file contains only one data layer due to large file sizes, limiting immediate multi-band analysis.

Provenance

Source

NASA/NOAA Suomi NPP satellite, Visible Infrared Imaging Radiometer Suite (VIIRS) sensor.

Collection Method

Daily production using the NBAR algorithm applied to 16 days of directional reflectance data.

Time Range

Daily, with each file representing a 16-day composite temporally weighted to the ninth day.

Freshness

2026-04-09 20:55:30.134541

Geography

Global