MCD43D67: Daily Nadir BRDF-Adjusted Reflectance for MODIS Band 6, Global 1km

Global daily data at 30 arc second (1,000 meter) resolution, produced by NASA using 16 days of Terra and Aqua MODIS observations. The MCD43D67 Version 6 product provides Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Nadir BRDF-Adjusted Reflectance (NBAR) for MODIS band 6, with data temporally weighted to the ninth day of the 16-day period. This product was decommissioned on July 31, 2023, with users encouraged to use the Version 6.1 replacement.

Use Cases

• Modeling surface albedo for climate simulations based on the global Climate Modeling Grid (CMG) product.
• Analyzing view-angle corrected surface reflectance for MODIS band 6 based on the NBAR algorithm.
• Assessing land surface radiative properties over time using the daily, temporally-weighted data production.

Strengths

• Provides global coverage at a consistent 30 arc second (1km) spatial resolution.
• Data is produced daily using a 16-day observation window from two satellite platforms (Terra and Aqua MODIS).
• The algorithm removes view angle effects to model reflectance as if collected from a nadir view at local solar noon.

Limitations

• The Version 6 product has known issues, particularly over arid bright surfaces, and has been decommissioned; substantive use is discouraged.
• Column-level documentation is absent; field semantics must be inferred after download.
• Each product file contains just one data layer due to large file size, which may complicate multi-band analysis.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced daily using 16 days of Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data.

Time Range

Daily production, with data weighted to the ninth day of a 16-day period.

Freshness

Last updated 2026-03-12 23:45:55.061700; freshness should be verified as the dataset is a decommissioned version.

Geography

Global