Global Daily White-Sky Albedo for MODIS Band 2

Global daily white-sky albedo data for MODIS spectral band 2 is produced by NASA's LPCLOUD using 16 days of Terra and Aqua MODIS observations. The dataset is generated daily at a resolution of 30 arc seconds (approximately 1 kilometer) for use in climate simulation models. Each file represents a temporally weighted composite centered on a specific Julian date.

Use Cases

• Modeling surface energy balance by incorporating white-sky albedo for MODIS band 2 into climate simulations.
• Analyzing temporal albedo trends using the daily composite data and associated Julian date timestamps.
• Assessing albedo quality for specific applications by applying the band-specific quality flags described in the user guide.

Strengths

• Daily temporal resolution provides frequent surface condition updates.
• Global spatial coverage at 30 arc-second (1 km) resolution supports climate-scale analysis.
• Data is derived from 16 days of MODIS observations from both Terra and Aqua satellites, enhancing robustness.

Limitations

• Each product file contains only one data layer, limiting multi-band analysis within a single file.
• Known issues exist, requiring users to consult external assessment websites for full details.
• The large file size per layer may present challenges for storage and processing.

Provenance

Source

NASA LPCLOUD

Collection Method

Produced using 16 days of Terra and Aqua MODIS data, temporally weighted to the ninth day.

Freshness

Daily

Geography

Global