MODIS BRDF Volumetric Parameter for Band 7 Daily Global Coverage

MCD43D20 provides the volumetric parameter for MODIS band 7, derived daily from 16 days of Terra and Aqua satellite data at 30 arc-second resolution. The LPCLOUD organization produces this global Climate Modeling Grid product for climate simulation models. Data are temporally weighted to the ninth day of each 16-day acquisition period.

Use Cases

• Derive albedo values for MODIS band 7 by combining the volumetric parameter with isotropic and geometric parameters.
• Assess surface reflectance dynamics using the daily volumetric parameter layer for climate model input.
• Filter data quality for band 7 analyses using the band-specific quality flags referenced in the user guide.
• Integrate the 30 arc-second volumetric parameter into global climate simulation grids.

Strengths

• Daily production using 16 days of MODIS data from two satellites.
• Global coverage at a consistent 30 arc-second (1,000 meter) resolution.
• Data are temporally weighted to provide a representative value for each 16-day period.

Limitations

• Each product file contains only one data layer, requiring multiple files for full parameter sets.
• Known issues exist, requiring consultation of the MODIS/VIIRS Land Quality Assessment website.
• The volumetric parameter for band 7 must be combined with other files to derive final BRDF/albedo values.

Provenance

Source

LPCLOUD

Collection Method

Produced daily using 16 days of Terra and Aqua MODIS data.

Freshness

Daily

Geography

Global