CR3.05 Media

All components of the cryosphere are strongly impacted by climate change and have been undergoing significant changes over the past decades. Most visibly, glaciers are shrinking and thinning. Snow cover and duration is reduced, and permafrost, in both Arctic and alpine environments, is thawing. Changes in sea ice cover and characteristics have attracted widespread attention, and changes in ice sheets are monitored with care and concern.
Risks associated with one or several of these cryosphere components have been present throughout history. However, as well documented atmospheric warming continues, we expect changes in the magnitude and frequency of hazards with profound implications for risks. New or growing glacier lakes pose a threat to downstream communities through the potential for sudden drainage. Thawing permafrost can destabilize mountain flanks, and eventually result in destructive rock and ice avalanches. An accelerated rate of permafrost degradation in low-land areas poses risk to existing and planned infrastructure and raises concerns about large-scale emission of greenhouse gases currently trapped in Arctic permafrost. Decreased summertime sea ice extent may produce both risks and opportunities in terms of large-scale climate feedbacks and alterations, coastal vulnerability, and new access to transport routes and natural resources. Eventually, rapid acceleration of outlet glacier ice discharge and collapse of ice sheets is of major concern for sea level change.
This session invites contributions across all cryosphere components that addresses risks associated with observed or projected physical processes. Contributions considering more than one cryosphere component (e.g. glaciers and permafrost) are particularly encouraged. Contributions can consider hazards and risks related to changes in the past, present or future. Discussion of both new risks and opportunities are encouraged, as long as an evidence based, critical analysis is provided.

Co-sponsored by IACS and IPA
Convener: Christian Huggel | Co-conveners: Michael Krautblatter, Josefine Lenz
| Tue, 09 Apr, 14:00–15:45
Room 1.85
| Attendance Mon, 08 Apr, 08:30–10:15
Hall X4

Attendance time: Monday, 8 April 2019, 08:30–10:15 | Hall X4

Chairperson: Krautblatter/Huggel
X4.1 |
Clara Rutkowski, Jens Strauss, Josefine Lenz, Sibylle Mothes, and Andreas Lang
X4.2 |
Pierre-Allain Duvillard, Ludovic Ravanel, Marco Marcer, and Philippe Schoeneich
X4.4 |
Randy Muñoz, Holger Frey, Fabian Drenkhan, Daniel Viviroli, and Christian Huggel
X4.5 |
Holger Frey, Simon Allen, Alberto Muñoz Torrero Manchado, Adam Emmer, Christian Huggel, and Divya Kashyap
X4.6 |
Alejo Cochachin, Randy Muñoz, Holger Frey, Wilfried Haeberli, and Christian Huggel
X4.7 |
Edwin Loarte, Katy Medina, Luzmila Dávila, Christian Huggel, Wilfried Haeberli, Holger Frey, and Randy Muñoz
X4.9 |
Ken Kondo, Daiki Sakakibara, Shungo Fukumoto, and Shin Sugiyama
X4.10 |
| Highlight
Georg Veh, Oliver Korup, and Ariane Walz
X4.12 |
Megan O'Sadnick, Chris Petrich, Nga Dang, Øystein Kleven, Camilla Brekke, and Jofrid Skardhamar