Articles | Volume 13, issue 2
Earth Syst. Dynam., 13, 703–709, 2022
https://doi.org/10.5194/esd-13-703-2022
Earth Syst. Dynam., 13, 703–709, 2022
https://doi.org/10.5194/esd-13-703-2022
Research article
05 Apr 2022
Research article | 05 Apr 2022

CO2 surface variability: from the stratosphere or not?

Michael J. Prather

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on esd-2021-98', Anonymous Referee #1, 05 Jan 2022
    • AC1: 'Reply on RC1 & RC2 combined', Michael Prather, 03 Mar 2022
  • RC2: 'Comment on esd-2021-98', Anonymous Referee #2, 11 Feb 2022
    • AC2: 'Reply on RC2', Michael Prather, 03 Mar 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish as is (12 Mar 2022) by Ning Zeng
AR by Michael Prather on behalf of the Authors (13 Mar 2022)  Author's response    Manuscript
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Short summary
Atmospheric CO2 fluctuations point to changes in fossil fuel emissions plus natural and perturbed variations in the natural carbon cycle. One unstudied source of variability is the stratosphere, where the influx of aged CO2-depleted air can cause surface fluctuations. Using modeling and, separately, scaling the observed N2O variability, I find that stratosphere-driven surface variability in CO2 is not a significant uncertainty (at most 10 % of the observed interannual variability).
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