Arctic Ground-Level Ozone Mixing Ratio Time Series

Hourly measurements of near ground-level ozone mixing ratio collected from multiple Arctic locations. The dataset spans from 1974 to 2018 and has been quality-checked by NOAA NCEI. It supports analysis of monthly ozone variation in the Arctic atmosphere.

Use Cases

• Analyzing long-term trends in Arctic ground-level ozone concentrations.
• Calculating expected monthly variations in ozone conditions across different sites.
• Studying the impact of Arctic atmospheric chemistry on local air quality.
• Validating atmospheric models with historical, quality-checked ozone measurements.

Strengths

• Provides a long-term record spanning 44 years from 1974 to 2018.
• Data from multiple separate Arctic sites have undergone quality checking.
• Contains hourly measurements enabling high temporal resolution analysis.

Limitations

• Column names and exact row counts are unspecified across all sources.
• Conflicting last updated dates exist: one source shows 2026-04-01, another shows 2018-12-31.
• Specific measurement instruments and site details are not fully enumerated.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI).

Collection Method

Hourly measurements collected via instruments such as dual cell UV photometers from Arctic observation sites.

Time Range

1974-01-01 to 2018-12-31

Freshness

Most recent update listed is 2026-04-01, though this conflicts with an end date of 2018-12-31.

Geography

Arctic locations.