Articles | Volume 20, issue 21
https://doi.org/10.5194/acp-20-12483-2020
https://doi.org/10.5194/acp-20-12483-2020
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

Related authors

Response of ice sheets, sea-ice and sea level in climate stabilisation and reversibility simulations using a state-of-the-art Earth System Model
Robin S. Smith, Tarkan A. Bilge, Thomas J. Bracegirdle, Paul R. Holland, Till Kuhlbrodt, Charlotte Lang, Spencer Liddicoat, Tom Mitcham, Jane Mulcahy, Kaitlin A. Naughten, Andrew Orr, Julien Palmieri, Antony J. Payne, Steven Rumbold, Marc Stringer, Ranjini Swaminathan, Sarah Taylor, Jeremy Walton, and Colin Jones
EGUsphere, https://doi.org/10.5194/egusphere-2025-4476,https://doi.org/10.5194/egusphere-2025-4476, 2025
This preprint is open for discussion and under review for Earth System Dynamics (ESD).
Short summary
Recent intensification of extreme precipitation over Antarctica driven by increases in greenhouse gases
Sai Prabala Swetha Chittella, Andrew Orr, Pranab Deb, and Quentin Dalaiden
EGUsphere, https://doi.org/10.5194/egusphere-2025-4292,https://doi.org/10.5194/egusphere-2025-4292, 2025
This preprint is open for discussion and under review for The Cryosphere (TC).
Short summary
Towards Bedmap Himalayas: a new airborne glacier thickness survey in Khumbu Himal, Nepal
Hamish D. Pritchard, Edward C. King, David J. Goodger, Douglas Boyle, Daniel N. Goldberg, Beatriz Recinos, Andrew Orr, and Dhananjay Regmi
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-519,https://doi.org/10.5194/essd-2025-519, 2025
Preprint under review for ESSD
Short summary
Probabilistic precipitation downscaling for ungauged mountain sites: a pilot study for the Hindu Kush Himalaya
Marc Girona-Mata, Andrew Orr, Martin Widmann, Daniel Bannister, Ghulam Hussain Dars, Scott Hosking, Jesse Norris, David Ocio, Tony Phillips, Jakob Steiner, and Richard E. Turner
Hydrol. Earth Syst. Sci., 29, 3073–3100, https://doi.org/10.5194/hess-29-3073-2025,https://doi.org/10.5194/hess-29-3073-2025, 2025
Short summary
Extreme precipitation associated with atmospheric rivers over West Antarctic ice shelves: insights from kilometre-scale regional climate modelling
Ella Gilbert, Denis Pishniak, José Abraham Torres, Andrew Orr, Michelle Maclennan, Nander Wever, and Kristiina Verro
The Cryosphere, 19, 597–618, https://doi.org/10.5194/tc-19-597-2025,https://doi.org/10.5194/tc-19-597-2025, 2025
Short summary

Cited articles

Alexander, J. M. and Teitelbaum, H.: Observation and analysis of a large amplitude mountain wave event over the Antarctic Peninsula, J. Geophys. Res., 112, D21103, https://doi.org/10.1029/2006JD008368, 2007. 
Alexander, S. P., Klekociuk, A. R., Pitts, M. C., McDonald, A. J., and Arevalo-Torres, A.: The effect of orographic gravity waves on Antarctic polar stratosphere cloud occurrence and composition, J. Geophys. Res., 116, D06109, https://doi.org/10.1029/2010JD015184, 2011. 
Alexander, S. P., Klekociuk, A. R., McDonald, A. J., and Pitts, M. C.: Quantifying the role of orographic gravity waves on polar stratospheric cloud occurrence in the Antarctic and the Arctic, J. Geophys. Res., 118, 11493–11507, https://doi.org/10.1002/2013JD020122, 2013. 
Alexander, S., Orr, A., Webster, S., and Murphy, D.: Observations and fine-scale model simulations of gravity waves over Davis, East Antarctica (69 S, 78 E), J. Geophys. Res., 122, 7355–7370, https://doi.org/10.1002/2017JD026615, 2017.  
Download
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.
Share
Altmetrics
Final-revised paper
Preprint