GOZCARDS Merged Ozone: 1-Month Zonal Averages on a Vertical Pressure Grid

GOZCARDS Merged Ozone data combines measurements from six satellite instruments, including SAGE I, SAGE II, and Aura MLS, spanning from 1979 onward. The product provides monthly zonal averages, standard deviations, and min/max values on a vertical pressure grid ranging from 147 to 0.5 hPa. NASA distributes this merged dataset in netCDF4 format for atmospheric research.

Use Cases

• Modeling long-term stratospheric ozone trends based on merged data from six satellite instruments.
• Analyzing vertical ozone distribution based on pressure levels from 147 to 0.5 hPa.
• Validating atmospheric chemistry models based on zonal mean ozone concentrations.
• Studiating instrument bias and data consistency based on the described merging and bias removal process.

Strengths

• Combines data from six satellite instruments, providing a long-term record starting in 1979.
• Includes derived statistics such as standard deviation and minimum/maximum values alongside zonal means.
• Covers a specific vertical pressure range from 147 to 0.5 hPa for detailed atmospheric profiling.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Merged product created from source satellite instrument data after bias removal and averaging.

Time Range

1979 onward, with instrument-specific coverage periods (e.g., SAGE I: 1979-1981, ACE-FTS: 2004-onward).

Freshness

Last updated 2026-03-13 02:31:00.571666; freshness should be verified.

Geography

Global zonal means, likely aggregated in 10-degree latitude bands.