Global Daily BRDF Albedo Parameter for MODIS Band 5

Global daily data provides the isotropic parameter for deriving Bidirectional Reflectance Distribution Function (BRDF) and Albedo values for MODIS band 5. The dataset is produced daily using 16 days of Terra and Aqua MODIS observations at 30 arc second (1,000 meter) resolution. It is generated by LPCLOUD for use in climate simulation models.

Use Cases

• Derive BRDF/Albedo values for MODIS band 5 using the isotropic parameter in conjunction with volumetric and geometric parameters.
• Integrate the 30 arc second isotropic parameter layer into global climate models to improve surface reflectance inputs.
• Apply band-specific quality flags to isolate highest quality full inversion results for time-series analysis of surface properties.
• Use the temporally weighted data, referenced to a ninth-day Julian date, for studying daily variations in land surface reflectance.

Strengths

• Data is produced daily, offering frequent updates.
• Provides global coverage at 30 arc second (1,000 meter) resolution.
• Parameters are derived from 16 days of MODIS data from two satellites (Terra and Aqua).

Limitations

• Each product file contains only one data layer, requiring multiple files for full parameter set.
• Known issues exist and require consultation of external assessment websites.
• The large file size per single layer may complicate data management.

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