Mechanism of ozone loss under enhanced water vapour conditions in the mid-latitude lower stratosphere in summer

Robrecht, Sabine; Vogel, Bärbel; Grooß, Jens-Uwe; Rosenlof, Karen; Thornberry, Troy; Rollins, Andrew; Krämer, Martina; Christensen, Lance; Müller, Rolf

doi:10.5194/acp-19-5805-2019

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Mechanism of ozone loss under enhanced water vapour conditions in the mid-latitude lower stratosphere in summer

2019
By Robrecht, Sabine ; Vogel, Bärbel ; Grooß, Jens-Uwe ; ...
Source: Atmos. Chem. Phys., 19, 5805–5833, 2019

[PDF-4.04 MB]

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Details:

Journal Title:

Atmospheric Chemistry and Physics
Personal Author:

Robrecht, Sabine ; Vogel, Bärbel ; Grooß, Jens-Uwe ; Rosenlof, Karen ; Thornberry, Troy ; ... More +

Robrecht, Sabine ; Vogel, Bärbel ; Grooß, Jens-Uwe ; Rosenlof, Karen ; Thornberry, Troy ; Rollins, Andrew ; Krämer, Martina ; Christensen, Lance ; Müller, Rolf Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CSL (Chemical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CSL (Chemical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:

Water vapour convectively injected into the mid-latitude lowermost stratosphere could affect stratospheric ozone. The associated potential ozone loss process requires low temperatures together with elevated water vapour mixing ratios. Since this ozone loss is initiated by heterogeneous chlorine activation on liquid aerosols, an increase in sulfate aerosol surface area due to a volcanic eruption or geoengineering could increase the likelihood of its occurrence. However, the chemical mechanism of this ozone loss process has not yet been analysed in sufficient detail and its sensitivity to various conditions is not yet clear. Under conditions of climate change associated with an increase in greenhouse gases, both a stratospheric cooling and an increase in water vapour convectively injected into the stratosphere are expected. Understanding the influence of low temperatures, elevated water vapour and enhanced sulfate particles on this ozone loss mechanism is a key step in estimating the impact of climate change and potential sulfate geoengineering on mid-latitude ozone.
Keywords:

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Ozone Water Vapor
Source:

Atmos. Chem. Phys., 19, 5805–5833, 2019
DOI:

https://doi.org/10.5194/acp-19-5805-2019
Document Type:

Journal Article
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CC BY
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urn:sha256:a94bb2bcdc252e768998686ebd60fd3e198915612e7809310ccafd13365e679b
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https://repository.library.noaa.gov/view/noaa/25046/noaa_25046_DS1.pdf
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