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

The MCD43D24 Version 6.1 dataset provides the geometric parameter for the Bidirectional Reflectance Distribution Function (BRDF) and Albedo model for the MODIS visible broadband. It is produced daily by NASA using 16 days of combined Terra and Aqua MODIS satellite data at a 30 arc second (approximately 1,000 meter) resolution, covering the entire globe. Data are temporally weighted to the ninth day of the 16-day acquisition period.

Use Cases

• Modeling surface radiative properties for climate simulations based on the daily, global BRDF/Albedo parameters.
• Deriving visible broadband albedo values based on the geometric parameter used in conjunction with isotropic and volumetric parameters.
• Isolating high-quality full inversion results for science applications based on the band-specific quality flags described in the user guide.

Strengths

• Daily temporal production using 16 days of data from two MODIS sensors (Terra and Aqua) for robust temporal compositing.
• Global spatial coverage at a 30 arc second (1km) Climate Modeling Grid (CMG) resolution.
• Version 6.1 incorporates specific calibration improvements, including RVS approach changes and polarization correction for reflective solar bands.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Each product file contains just one data layer, which may complicate analysis requiring multiple parameters.
• Users must apply quality flags to isolate highest quality results, adding a preprocessing step.

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; temporal weighting to the ninth day of a 16-day window.

Freshness

Last updated 2026-03-12 23:41:59.049298; freshness should be verified.

Geography

Global