MERRA-2: Monthly Diurnal Ozone Tendencies on Pressure Levels

1980-present monthly diurnal means of assimilated ozone tendencies on 42 pressure levels. The dataset is produced by NASA's Global Modeling and Assimilation Office using the GEOS model version 5.12.4. Data fields are time-stamped at 3-hour intervals starting from 01:30 UTC.

Use Cases

• Analyzing ozone tendency due to chemistry based on the 'tendency of odd oxygen mixing ratio due to chemistry' field.
• Studying the impact of moist processes on ozone based on the 'tendency of odd oxygen due to moist processes' field.
• Modeling ozone dynamics based on the 'tendency of ozone due to dynamics' field.
• Monitoring total ozone analysis trends based on the 'total ozone analysis tendency' field.

Strengths

• Covers a long temporal range from 1980 to present.
• Provides data on 42 distinct pressure levels.
• Assimilates multiple ozone tendency types, including chemical, dynamic, and moist processes.
• Data is produced by NASA's Global Modeling and Assimilation Office.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data has a latency of approximately 3 weeks after the end of a month.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Assimilated global atmospheric reanalysis produced by NASA GMAO using the GEOS model.

Time Range

1980-present

Freshness

Last updated 2026-03-13 00:27:32.376250; freshness should be verified.

Geography

Global