TY  - JOUR
AU  - Robrecht, Sabine
AU  - Vogel, Bärbel
AU  - Grooß, Jens-Uwe
AU  - Rosenlof, Karen
AU  - Thornberry, Troy
AU  - Rollins, Andrew
AU  - Krämer, Martina
AU  - Christensen, Lance
AU  - Müller, Rolf
TI  - Mechanism of ozone loss under enhanced water vapour conditions in the mid-latitude lower stratosphere in summer
JO  - Atmospheric chemistry and physics / Discussions Discussions [...]
VL  - -
SN  - 1680-7375
CY  - Katlenburg-Lindau
PB  - EGU
M1  - FZJ-2019-02548
SP  - 1 - 41
PY  - 2019
AB  - Water vapour convectively injected into the mid-latitude lowermost stratosphere could affect stratospheric ozone. The associated potential ozone loss process requires low temperatures and an elevated water vapour mixing ratio. An increase in sulphate aerosol surface area due to a volcanic eruption or geoengineering could increase the likelihood of occurrence of this process. 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 is expected. Understanding the influence of low temperatures, elevated water vapour and enhanced sulphate particles on this ozone loss mechanism is a key step in estimating the impact of climate change and potential sulphate geoengineering on mid-latitude ozone.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.5194/acp-2018-1193
UR  - https://juser.fz-juelich.de/record/862200
ER  -