MCD43D04: Daily Global BRDF Isotropic Parameter for MODIS Band 2 at 1km Resolution

MCD43D04 Version 6 is a decommissioned NASA dataset providing the Bidirectional Reflectance Distribution Function (BRDF) isotropic parameter for MODIS band 2. It is produced daily at a 30 arc second (1,000 meter) global resolution, using 16 days of combined Terra and Aqua satellite observations weighted to the ninth day. The data is formatted for Climate Modeling Grids (CMG) and was decommissioned on July 31, 2023, with users directed to the Version 6.1 product.

Use Cases

• Modeling land surface reflectance for climate simulations based on the global Climate Modeling Grid (CMG) format.
• Deriving BRDF and albedo values for MODIS band 2 based on the isotropic parameter combined with volumetric and geometric parameters.
• Assessing surface radiative properties over time based on daily production using a 16-day observation window.
• Isolating high-quality data for specific science applications based on the band-specific quality flags described in the user guide.

Strengths

• Global spatial coverage at a consistent 30 arc second (approximately 1km) resolution.
• Daily temporal production using a 16-day observation window from two MODIS sensors (Terra and Aqua).
• Data is specifically formatted for use in climate simulation models (Climate Modeling Grid).

Limitations

• This Version 6 product was decommissioned on July 31, 2023, due to known issues impacting data quality over arid bright surfaces.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.

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 data, temporally weighted to the ninth day of a 16-day acquisition period.

Freshness

Last updated 2026-03-12 23:44:07.155001; freshness should be verified as the data product is decommissioned.

Geography

Global