Changes in the O2/N2 ratio of the atmosphere during recent decades reflected in the composition of air in the firn at Vostok Station, Antarctica

• Published in: Geophysical Research Letters
• Main Authors: Bender, Ml, Sowers, T., Barnola, Jm, Chappellaz, J.
• Format: Text
• Language: unknown
• Published: Washington, American Geophysical Union (AGU) 2022
• Subjects: Vostok Station; Antarc*; Antarctica
• Online Access: https://doi.org/10.1029/93GL03548; http://infoscience.epfl.ch/record/298294

Samples of air at various depths in firn were collected at Vostok Station, Antarctica, and analyzed for δ15N of N2, O2/N2 ratio, and CO2. The ultimate objective of this work is to constrain the recent rate of the atmospheric [O2] decrease, thereby providing a direct experimental constraint on net CO...