Daily MODIS Band 4 Black-Sky Albedo for Global Climate Grids

Black-sky albedo data for MODIS spectral band 4, produced daily from Terra and Aqua satellite observations. LPCLOUD generates this global Climate Modeling Grid product at 30 arc-second resolution, temporally weighted to a central Julian date.

Use Cases

• Model surface radiative forcing by integrating black-sky albedo for band 4 into climate simulation energy budgets.
• Assess vegetation health trends by analyzing temporal changes in near-infrared (NIR) black-sky albedo from band 4.
• Validate land surface models using the 30 arc-second resolution gridded albedo data against field measurements.
• Filter data quality by applying the band-specific quality flags to isolate highest-quality full inversion results for analysis.

Strengths

• Daily temporal resolution using a 16-day data window for stable retrievals.
• Global spatial coverage at 30 arc-second (approximately 1km) Climate Modeling Grid resolution.
• Product suite includes 10 black-sky and 10 white-sky albedo layers for multiple spectral bands.

Limitations

• Each product file contains only one data layer, requiring multiple files for multi-band analysis.
• Known issues exist, requiring consultation of the MODIS/VIIRS Land Quality Assessment website.
• Data is temporally weighted to a central Julian date, not representing instantaneous measurements.

Provenance

Source

LPCLOUD using Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) data.

Collection Method

Produced daily using 16 days of MODIS data and a full inversion model.

Freshness

Daily

Geography

Global