Ocean ventilation as a driver of interannual variability in atmospheric potential oxygen

• Published in: Tellus B: Chemical and Physical Meteorology
• Main Authors: Hamme, Roberta C., Keeling, Ralph F.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Tellus B: Chemical and Physical Meteorology 2008
• Subjects: Pacific; Scripps; North Atlantic
• Online Access: http://hdl.handle.net/1828/12593; https://doi.org/10.1111/j.1600-0889.2008.00376.x

We present observations of interannual variability on 2–5 yr timescales in atmospheric potential oxygen (APO≈O2+CO2) from the Scripps Institution of Oceanography global flask sampling network. Interannual variations in the tracer APO are expected to arise from air–sea fluxes alone, because APO is in...