OMAEROe: Daily Global Aerosol Measurements from Satellite

Daily global data from the Aura/OMI satellite instrument provides Level-3 gridded aerosol measurements. The OMAEROe product selects the best aerosol value per 0.25-degree grid cell from up to 20 wavelength bands between 331 nm and 500 nm, based on the shortest optical path length. Data is stored in HDF-EOS5 format, with each file covering approximately 15 orbits and a maximum size of about 7 Mbytes.

Use Cases

• Monitoring global aerosol optical depth trends based on multi-wavelength satellite retrievals.
• Analyzing daily aerosol single scattering albedo for climate modeling.
• Studying spatial patterns of atmospheric aerosols on a 0.25-degree global grid.
• Validating atmospheric models with satellite-derived best-pixel aerosol data.

Strengths

• Provides daily, global coverage from the Aura/OMI satellite instrument.
• Uses a multi-wavelength algorithm with up to 20 bands for detailed aerosol characterization.
• Dataset is hosted on multiple authoritative platforms (NASA EarthData, Data.gov), indicating established use.

Limitations

• Specific column names and detailed data schema are not provided in the available metadata.
• Exact temporal coverage (start/end dates) and total row/file counts are unspecified.
• License is listed as 'other-license-specified', requiring users to investigate terms.

Provenance

Source

OMI science team, produced for the Aura satellite mission and distributed by GES DISC.

Collection Method

Satellite remote sensing; Level-3 data derived from Level2G good quality data, selecting the best pixel per grid.

Time Range

null

Freshness

2026-04-09 23:18:11.722422

Geography

Global, gridded at 0.25-degree latitude/longitude resolution.