MODIS Daily BRDF Geometric Parameter for Band 6

MCD43D18 provides the geometric parameter for deriving Bidirectional Reflectance Distribution Function and Albedo values for MODIS band 6. NASA's LPCLOUD produces this dataset daily using 16 days of Terra and Aqua MODIS data at a 30 arc-second resolution. The data is temporally weighted to the ninth day and covers the entire globe for climate simulation models.

Use Cases

• Derive BRDF/Albedo values for MODIS band 6 using the geometric parameter alongside isotropic and volumetric parameters.
• Assess daily land surface reflectance dynamics for climate simulation models using the 30 arc-second resolution grid.
• Filter data quality for scientific applications by applying the band-specific quality flags described in the user guide.
• Analyze temporal trends in surface reflectance by leveraging the daily production and 16-day data aggregation window.

Strengths

• Provides daily global coverage at 30 arc-second resolution.
• Integrates data from both Terra and Aqua MODIS instruments over a 16-day window.
• Includes band-specific quality flags for isolating highest quality full inversion results.

Limitations

• Each product file contains only one data layer, requiring multiple files for complete parameter analysis.
• Known issues exist, requiring users to consult external assessment websites for full details.
• Specific row counts, column definitions, and sample data are unavailable for immediate assessment.

Provenance

Source

NASA LPCLOUD

Collection Method

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

Freshness

Daily

Geography

Global