MCD43D22: Daily Global BRDF/Albedo Parameter for Visible Broadband at 1km Resolution

MCD43D22 Version 6 is a NASA MODIS data product providing the Bidirectional Reflectance Distribution Function (BRDF) isotropic parameter for the visible broadband. It is produced daily from 16 days of Terra and Aqua satellite observations at a 30 arc second (approximately 1,000 meter) resolution, temporally weighted to the ninth day, and formatted as a global Climate Modeling Grid (CMG). The dataset was decommissioned on July 31, 2023, with users directed to the Version 6.1 product.

Use Cases

• Modeling surface albedo for climate simulations based on the global Climate Modeling Grid (CMG) format.
• Analyzing daily land surface reflectance anisotropy based on the BRDF isotropic parameter for the visible broadband.
• Incorporating temporally weighted surface properties into models based on the 16-day observation window weighted to the ninth day.
• Assessing surface radiative properties over bright, arid regions, noting the described known issues with aerosol representation in Version 6.

Strengths

• Global spatial coverage designed for climate simulation models.
• Daily temporal production using a 16-day observation window from two satellite platforms (Terra and Aqua).
• Spatial resolution of 30 arc seconds (approximately 1,000 meters).

Limitations

• The Version 6 product is decommissioned; the description urges users to avoid substantive use and switch to Version 6.1.
• Known issues in Collection 6, particularly over arid bright surfaces due to incorrect aerosol representation in upstream data.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

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

Time Range

Daily production; temporal weighting to the ninth day of a 16-day period.

Freshness

Last updated 2026-03-12 23:43:06.860339; freshness should be verified.

Geography

Global