South Pole, Antarctica

South Pole, Antarctica bimonthly O2/N2 ratio and CO2 trends plot


O2/N2 and CO2 flask data taken at South Pole, Antarctica: Latitude 90°S Longitude 0°E Elevation 2810m.

Usage Restrictions

Scripps O2 program data and graphics are licensed under a CC BY license, Creative Commons Attribution 4.0 International License (, which clarifies appropriate uses and requirements, including that credit be given to the Scripps Institution of Oceanography at UC San Diego.

Ethical usage may also require disclosing intentions at early stages to avoid duplicating ongoing studies at Scripps or elsewhere. For applications supporting peer-reviewed scientific publications, coauthorship may sometimes be appropriate. An example would be if an important result or conclusion depends on this product, such as the first account of a previously unreported phenomenon.

Please direct queries to Ralph Keeling (