ML2O3: MLS/Aura Satellite Ozone Profiles, Near-Global Coverage

MLS/Aura Level 2 Ozone (O3) Mixing Ratio V004 (ML2O3) is a standard satellite product from NASA's EOS Aura Microwave Limb Sounder. The dataset provides near-global ozone profiles from 261 to 0.0215 hPa, with data spaced roughly 165 km along the orbit track. It is stored in HDF-EOS5 format and was last updated in March 2026.

Use Cases

• Modeling stratospheric ozone distribution based on vertical profile data.
• Analyzing long-term ozone trends based on the near-global spatial coverage.
• Validating atmospheric chemistry models based on satellite-derived mixing ratios.
• Studying polar ozone phenomena based on the dataset's latitudinal range.

Strengths

• Data version is specified as 4.2, indicating a processed standard product.
• Spatial coverage is near-global, spanning from -82 to +82 degrees latitude.
• Vertical resolution is between 2.5 and 6 km across the recommended pressure range.
• Data is stored in a structured, self-describing HDF-EOS5 format.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified as the last update date is in the future (2026-03 13).

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

null

Freshness

Last updated 2026-03-13 00:34:39.661405

Geography

Near-global (-82 degrees to +82 degrees latitude)