The influence of air-sea fluxes on atmospheric oxygen can
be separated from terrestrial influences using the tracer Atmospheric Potential
Oxygen (APO). Data collected by the Scripps atmospheric oxygen
flask sampling network exhibits interannual variability in APO coherent over the northern
hemisphere. The timing of these changes
correlates with climatic changes in the North Pacific.
Author: R.C. Hamme, R.F. Keeling, and W.J. Paplawsky (rhamme at ucsd dot edu)
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