Variations in stratospheric aerosol -- arising primarily from sporadic volcanic eruptions -- are an important contributor to climate variability. Major volcanic eruptions have led to pronounced decreases in global surface temperature over seasonal-to-decadal timescales.

The transition from the unusual 1998-2002 period of a “fully decayed to quiescence” stratospheric aerosol layer, into a more typical period of modest volcanic activity temporarily offset a substantial proportion of the subsequent decadal forcing from increased greenhouse gases.

Advancing our understanding of the influence of volcanoes on climate relies upon better knowledge of the radiative forcings of past eruptions and the microphysical, chemical and dynamical processes which affect the evolution of stratospheric aerosol properties. This can only be achieved by combining information from satellite and in-situ observations of recent eruptions, stratospheric aerosol modelling activities, and reconstructions of past volcanic histories from proxies.

This session seeks presentations from research aimed at better understanding the stratospheric aerosol layer and its volcanic perturbations through the post-industrial period (1750-present) and also those further back in the historical record.

This year contributions addressing volcanic influences on atmospheric composition, such as changes in stratospheric water vapour, ozone and other trace gases are also particularly encouraged.

The session also aims to highlight research on volcanoes and climate contributing to current international SPARC-SSiRC, CMIP6-VolMIP, CMIP6-PMIP, and PAGES-VICS co-ordinated activities.

Co-organized as CL2.16, co-sponsored by SPARC-SSiRC and CMIP6-VolMIP
Convener: Graham Mann | Co-conveners: Myriam Khodri, Claudia Timmreck, Matthew Toohey, Davide Zanchettin
| Thu, 11 Apr, 14:00–15:45
Room 0.60
| Attendance Thu, 11 Apr, 16:15–18:00
Hall X5

Attendance time: Thursday, 11 April 2019, 16:15–18:00 | Hall X5

X5.399 |
Corinna Kloss, Gwenaël Berthet, Pasquale Sellitto, Felix Plöger, Silvia Bucci, Sergey Khaykin, Fabrice Jégou, Brice Barret, Eric Le Flochmoen, Marc von Hobe, Ghassan Taha, Adriana Bossolasco, Larry Thomason, and Bernard Legras
X5.401 |
Hazel Vernier, Neeraj Rastogi, Duncan Fairlie, Hongyu Liu, Amit Pandit, Kristopher Bedka, Anil Patel, Venkat Ratam, Jean-Paul Vernier, and Suneel Kumar
X5.402 |
Lukas Muser, Lisa Muth, Heike Vogel, Gholamali Hoshyaripour, Simon Gruber, Sven Werchner, Michael Weimer, and Bernhard Vogel
X5.403 |
Alison Ming, Holly Winton, Markus Frey, and Xin Yang
X5.404 |
Brian Zambri, Susan Solomon, and Douglas Kinnison
X5.405 |
A systematic study of the impacts of volcanic eruptions on stratospheric composition
Valentina Aquila, Peter Colarco, and Paul Newman
X5.406 |
Ice core and model constraints on the past ozone layer over Antarctica
Lisa Lolk Hauge, Alison Ming, Holly Winton, Markus Frey, Xin Yang, Joel Savarino, and Nicolas Caillon
X5.407 |
Juhi Nagori, Narcisa Nechita-Bândă, Maarten Krol, Sebastian Danielache, and Thomas Röckmann
X5.408 |
Graham Mann, James Brooke, Kamalika Sengupta, Lauren Marshall, Sandip Dhomse, Wuhu Feng, Ryan Neely, Charles Bardeen, Nicolas Bellouin, Mohit Dalvi, Colin Johnson, Luke Abraham, Terry Deshler, Larry Thomason, and John Plane
X5.411 |
Landon Rieger, Adam Bourassa, and Doug Degenstein
X5.412 |
| presentation
Johan Friberg, Bengt G. Martinsson, and Oscar S. Sandvik
X5.413 |
Aryeh Feinberg, Timofei Sukhodolov, Andrea Stenke, Bei-Ping Luo, Thomas Peter, Lenny Winkel, and Eugene Rozanov
X5.414 |
Christoph Brühl, Jennifer Schallock, Jos Lelieveld, Landon Rieger, Christine Bingen, and Michael Höpfner
X5.415 |
Claudia Timmreck, Graham W. Mann, Valentina Aquila, Rene Hommel, Lindsay A Lee, Anja Schmidt, Christoph Brühl, Simon Carn, Mian Chin, Sandip S. Dhomse, Thomas Diehl, Jason M. English, Michael J. Mills, Ryan Neely, Jianxiong Sheng, Matthew Thoohey, and Debra Weisenstein
X5.416 |
Davide Zanchettin, Claudia Timmreck, Matthew Toohey, Johann H. Jungclaus, Matthias Bittner, Stephan J. Lorenz, and Angelo Rubino
X5.419 |
How do volcanic eruptions affect ENSO in terms of eruption type and initial ocean condition?
Fei Liu