MCD43C1: Global BRDF/Albedo Model Parameters for Climate Models

Global data provides the three model weighting parameters (isotropic, volumetric, and geometric) used to derive albedo and bidirectional reflectance distribution function (BRDF) products. It is produced daily using 16 days of Terra and Aqua MODIS data at a 0.05-degree (5,600-meter) Climate Modeling Grid (CMG) resolution. The dataset includes 30 parameter layers for MODIS spectral bands 1-7 and broad spectral bands, plus ancillary layers for quality, local solar noon, snow cover, and uncertainty.

Use Cases

• Deriving surface albedo maps based on the three BRDF model parameters.
• Assessing land surface anisotropy for climate models using the geometric and volumetric weighting parameters.
• Filtering data quality for scientific applications using the band-specific quality flags.
• Analyzing snow cover dynamics using the ancillary snow cover layer.
• Estimating uncertainty in surface reflectance retrievals using the provided uncertainty layers.

Strengths

• Provides global coverage at a 0.05-degree Climate Modeling Grid resolution.
• Contains 30 specific parameter layers for spectral bands 1-7, visible, NIR, and shortwave bands.
• Is produced daily using a 16-day data composite, offering frequent temporal updates.
• Cross-platform presence on datagov and nasa_earthdata signals its importance and validation.

Limitations

• Specific row count, file size, and detailed column names are not provided in any source.
• License is listed as 'other-license-specified' without further detail.
• Known issues exist and require users to consult an external website for complete information.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Produced daily from 16 days of Terra and Aqua MODIS satellite data.

Freshness

2026-04-10 00:17:58.938618

Geography

Global