Articles | Volume 21, issue 20
Atmos. Chem. Phys., 21, 15409–15430, 2021
https://doi.org/10.5194/acp-21-15409-2021
Atmos. Chem. Phys., 21, 15409–15430, 2021
https://doi.org/10.5194/acp-21-15409-2021

Research article 15 Oct 2021

Research article | 15 Oct 2021

Investigation and amelioration of long-term instrumental drifts in water vapor and nitrous oxide measurements from the Aura Microwave Limb Sounder (MLS) and their implications for studies of variability and trends

Nathaniel J. Livesey et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on acp-2021-440', Quentin Errera, 22 Jul 2021
    • CC2: 'Reply on CC1', Quentin Errera, 22 Jul 2021
  • RC1: 'Comment on acp-2021-440', Anonymous Referee #1, 26 Jul 2021
  • RC2: 'Comment on acp-2021-440', Anonymous Referee #2, 26 Jul 2021
  • AC1: 'Comment on acp-2021-440', Nathaniel Livesey, 23 Aug 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Nathaniel Livesey on behalf of the Authors (23 Aug 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (27 Aug 2021) by Rolf Müller
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Short summary
The Microwave Limb Sounder (MLS), an instrument on NASA's Aura mission launched in 2004, measures vertical profiles of the temperature and composition of Earth's "middle atmosphere" (the region from ~12 to ~100 km altitude). We describe how, among the 16 trace gases measured by MLS, the measurements of water vapor (H2O) and nitrous oxide (N2O) have started to drift since ~2010. The paper also discusses the origins of this drift and work to ameliorate it in a new version of the MLS dataset.
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