MLS/Aura Level 3: Daily Binned Ozone Mixing Ratio on Global Grids

ML3DBO3 is the EOS Aura Microwave Limb Sounder (MLS) daily binned ozone product derived from 240 GHz radiometer radiances. The data provides near-global spatial coverage from -82 to +82 degrees latitude at a 4°x5° resolution and a vertical range from 261 to 0.0215 hPa. It is archived in netCDF4 format by NASA and contains multiple group objects for different averaging profiles and geolocation fields.

Use Cases

• Modeling stratospheric ozone distribution based on daily binned, near-global measurements.
• Analyzing zonal mean ozone profiles based on latitude vs pressure data groups.
• Studying diurnal ozone variations based on daytime (SZA < 90) and nighttime (SZA > 110) profile groups.
• Investigating polar vortex dynamics based on equivalent latitude vs potential temperature zonal mean groups.

Strengths

• Data version is specified as 5.1, indicating a processed and versioned product.
• Spatial coverage is near-global, spanning from -82 to +82 degrees latitude.
• Vertical resolution is specified as between 2.5 and 6 km.
• Data is structured into multiple groups (e.g., lat-lon map, zonal mean) for different analysis perspectives.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from radiances measured by the 240 GHz radiometer on the EOS Aura Microwave Limb Sounder (MLS) satellite.

Time Range

Daily binned product; specific temporal coverage is not stated.

Freshness

Last updated 2026-03-13 00:04:02.263299; freshness should be verified.

Geography

Near-global coverage from -82 to +82 degrees latitude.