MODIS Daily BRDF Isotropic Parameter for Visible Broadband

MCD43D22 Version 6.1 provides the isotropic parameter for the Bidirectional Reflectance Distribution Function and Albedo model for the MODIS visible broadband. The dataset is produced daily from 16 days of Terra and Aqua MODIS data at 30 arc second resolution, covering the entire globe. LPCLOUD generates this product for use in climate simulation models.

Use Cases

• Model surface albedo for the visible broadband using the isotropic parameter alongside volumetric and geometric parameters.
• Assess daily changes in surface reflectance properties for climate grids using the temporally weighted ninth-day data.
• Filter for highest quality full inversion results in science applications using the band-specific quality flags.
• Integrate the isotropic parameter into global climate models as a component of the BRDF/Albedo model.

Strengths

• Daily production provides frequent updates for temporal analysis.
• Global coverage at 30 arc second resolution supports climate-scale modeling.
• Data integrates 16 days of MODIS observations from both Terra and Aqua satellites.

Limitations

• Each product file contains only one data layer, requiring multiple files for full parameter set.
• Known issues exist, requiring users to consult external quality assessment resources.
• Specific row counts, file sizes, and detailed column structures are not provided.

Provenance

Source

LPCLOUD, using Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data.

Collection Method

Produced daily using 16 days of MODIS data, temporally weighted to the ninth day.

Freshness

Daily

Geography

Global