MODIS/Aqua Aerosol 5-Min L2 Swath 10km: Global Atmospheric Aerosol Properties

MODIS/Aqua's MYD04_L2 product provides full global aerosol measurements every five minutes at a 10 km spatial resolution. Its Collection 6.1 version incorporates improved Dark Target retrieval over urban areas and enhanced uncertainty estimates for Deep Blue retrievals. This satellite-derived dataset delivers aerosol optical properties and quality assurance parameters over both ocean and land surfaces.

Use Cases

• Monitoring regional air pollution levels based on retrieved aerosol optical depth.
• Studying long-range transport of dust or smoke plumes using global, five-minute swath data.
• Validating and improving atmospheric models with algorithm-derived aerosol properties over both dark and bright land surfaces.
• Assessing aerosol radiative forcing for climate studies using atmospheric optical depth and radiative flux parameters.

Strengths

• Provides full global coverage of aerosol properties.
• Offers data at a high temporal resolution (five-minute intervals) and a consistent 10 km spatial scale at nadir.
• Incorporates two established retrieval algorithms (Dark Target and Deep Blue) for comprehensive land and ocean coverage.
• Is an improved Collection 6.1 version with algorithm updates for urban areas and uncertainty estimates.

Limitations

• Specific column names and dataset size (rows, file size) are not provided in any source, limiting precise technical assessment.
• Data is stored in HDF-EOS format, which may require specialized tools for access and analysis.
• The 'last updated' metadata field shows a future date (2026-04-10), indicating a potential metadata error or conflict.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Satellite remote sensing from the MODIS instrument aboard the Aqua spacecraft.

Time Range

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Freshness

2026-04-10 00:24:23.855334

Geography

Global coverage over ocean and land.