MCD43D24: Daily Global BRDF Geometric Parameter for Visible Broadband at 1km Resolution

MCD43D24 Version 6 is a decommissioned daily global dataset providing the Bidirectional Reflectance Distribution Function (BRDF) geometric parameter for the visible broadband. It is produced by NASA using 16 days of Terra and Aqua MODIS data at a 30 arc second (approximately 1,000 meter) resolution, weighted to the ninth day of the period. This Climate Modeling Grid (CMG) product is intended for use in climate simulation models.

Use Cases

• Modeling surface albedo for climate simulations based on the BRDF parameters.
• Analyzing daily changes in land surface reflectance properties based on the geometric parameter.
• Integrating visible broadband reflectance data into Earth system models based on the global CMG coverage.
• Assessing data quality for scientific applications based on the band-specific quality flags mentioned in the user guide.

Strengths

• Global coverage at a consistent 30 arc second (1km) resolution.
• Data is produced daily using observations from two satellite platforms (Terra and Aqua).
• Improvements from previous versions include better quality at high latitudes and use of snow status weighted to the ninth day.

Limitations

• This Version 6 product was decommissioned on July 31, 2023, and users are urged to use Version 6.1.
• Known issues in Collection 6, particularly over arid bright surfaces, may impact data quality.
• 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, data temporally weighted to the ninth day of a 16-day period.

Freshness

Last updated 2026-03-12 23:24:26.095455; freshness should be verified as the dataset is decommissioned.

Geography

Global