MCD43D19: Daily Global BRDF Isotropic Parameter for MODIS Band 7 at 1km

MCD43D19 Version 6.1 provides a single daily data layer for the Bidirectional Reflectance Distribution Function (BRDF) isotropic parameter, specifically for MODIS band 7. This NASA product is generated daily using 16 days of combined Terra and Aqua satellite data, temporally weighted to the ninth day, and is formatted on a global Climate Modeling Grid at 30 arc second (1,000 meter) resolution. The data is intended for use in climate simulation models, and users are directed to apply band-specific quality flags to isolate the highest quality results.

Use Cases

• Modeling land surface albedo for climate simulations based on the BRDF isotropic parameter.
• Analyzing temporal changes in surface reflectance properties based on daily, globally gridded data.
• Integrating MODIS-derived BRDF parameters into larger Earth system models based on the Climate Modeling Grid format.
• Assessing data quality for scientific applications based on the band-specific quality flags mentioned in the user guide.

Strengths

• Data is produced daily using a 16-day composite from two satellite platforms (Terra and Aqua MODIS).
• Global coverage at a consistent 30 arc second (approximately 1km) resolution on a Climate Modeling Grid.
• Version 6.1 incorporates specific calibration improvements, including response-versus-scan angle and polarization corrections.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Each product file contains just one data layer, which may require managing multiple files for a complete analysis.
• Row count is unknown, which may limit suitability assessment for large-scale processing.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced daily from 16 days of Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data.

Time Range

Daily production; temporal weighting is applied to the ninth day of the 16-day composite.

Freshness

Last updated 2026-03-12 23:44:32.184434; freshness should be verified.

Geography

Global