ML3DZO3: Daily Binned Ozone Mixing Ratio from Aura Satellite

ML3DZO3 is the EOS Aura Microwave Limb Sounder daily binned ozone product, version 4.2. The dataset provides near-global coverage from -82 to +82 degrees latitude at 4-degree increments, with a useful vertical range from 261 to 0.0215 hPa. Data is archived in netCDF4 format, with each file containing one year of measurements organized into groups for zonal means, potential temperature, and vortex averages.

Use Cases

• Modeling stratospheric ozone profiles based on daily binned zonal mean data.
• Analyzing seasonal or latitudinal ozone variations based on near-global spatial coverage.
• Comparing daytime and nighttime ozone measurements based on profiles separated by solar zenith angle.
• Studying polar vortex dynamics based on vortex average vs potential temperature groups.

Strengths

• Data version 4.2 indicates a mature, processed product.
• Near-global spatial coverage from -82 to +82 degrees latitude.
• Recommended useful vertical range spans from 261 to 0.0215 hPa.
• Data is organized into specific groups (e.g., ascending/descending orbit, daytime/nighttime) for targeted analysis.

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).

Time Range

Each file contains one year of data.

Freshness

Last updated 2026-03-13 00:32:39.714514; freshness should be verified.

Geography

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