Polar stratospheric clouds initiated by mountain waves in a global  chemistry–climate model: a missing piece in fully modelling polar  stratospheric ozone depletion

Orr, Andrew; Hosking, J. Scott; Delon, Aymeric; Hoffmann, Lars; Spang, Reinhold; Moffat-Griffin, Tracy; Keeble, James; Abraham, Nathan Luke; Braesicke, Peter

doi:https://doi.org/10.5194/acp-20-12483-2020

Articles | Volume 20, issue 21

https://doi.org/10.5194/acp-20-12483-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-12483-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 21

Research article

|

31 Oct 2020

Research article |

| 31 Oct 2020

Polar stratospheric clouds initiated by mountain waves in a global chemistry–climate model: a missing piece in fully modelling polar stratospheric ozone depletion

Andrew Orr, J. Scott Hosking, Aymeric Delon, Lars Hoffmann, Reinhold Spang, Tracy Moffat-Griffin, James Keeble, Nathan Luke Abraham, and Peter Braesicke

Data sets

AIRS/Aqua Observations of Gravity Waves Lars Hoffmann https://doi.org/10.17616/R34J42

high resolution radiosonde data from Halley and Rothera stations British Antarctic Survey http://catalogue.ceda.ac.uk/uuid/37f2bef57e28bcd780a5cbfe077f4bf8

Short summary

Polar stratospheric clouds (PSCs) are clouds found in the Antarctic winter stratosphere and are implicated in the formation of the ozone hole. These clouds can sometimes be formed or enhanced by mountain waves, formed as air passes over hills or mountains. However, this important mechanism is missing in coarse-resolution climate models, limiting our ability to simulate ozone. This study examines an attempt to include the effects of mountain waves and their impact on PSCs and ozone.