Dear colleagues,
We would like to draw your attention to two upcoming Southern Ocean
sessions at the EGU General Assembly 2023 in Vienna, 23-28 April 2023:
OS1.8 The Southern Ocean in a changing climate: open-ocean physical and
biogeochemical processes
Abstract submission:
https://meetingorganizer.copernicus.org/EGU23/session/45625
Solicited speaker: TBD
and
OS1.9 Under cover: The Southern Ocean's connection to sea ice and ice
shelves
Abstract submission:
https://meetingorganizer.copernicus.org/EGU23/session/45628
(session details provided below)
The sessions will be run in a hybrid EGU orals and posters format,
allowing for both in-person and virtual participation
(https://egu23.eu/about/meeting_format.html).
Please consider to submit a contribution to either session by 10 January
2023, 13:00 CET. Please also note that applicants for financial support
should submit their abstracts by 1 December 2022, 13:00 CET. Details and
updates can be found on the EGU23 website: https://egu23.eu.
We hope to see many of you in Vienna and make this an exciting and
inspiring session! Please feel free to circulate this announcement to
colleagues who may be interested.
Kind regards,
Alex, Lavinia, Emma, Krissy, and Mark
and
Nadine, Stefanie, Tiago, Moritz, and Torge
********************************************************************************************************
SESSION DETAILS:
OS1.8 The Southern Ocean in a changing climate: open-ocean physical and
biogeochemical processes
The Southern Ocean around the latitudes of the Antarctic Circumpolar
Current is vital to our understanding of the climate system. It is a key
region for vertical and lateral exchanges of heat, carbon, and
nutrients, with considerable past and potential future global climate
implications. The role of the Southern Ocean as a dominant player in
heat and carbon exchanges as well as its response to changing
atmospheric forcing and increased melting of Antarctic ice masses
remains uncertain. Indeed, the sparsity of observations of this system
and its inherent sensitivity to small-scale physical processes, which
are not fully represented in current Earth system models, result in
large climate projection uncertainties. To address these knowledge gaps,
the Southern Ocean is currently subject to investigations with
increasingly advanced observational platforms, and theoretical,
numerical, and machine learning techniques. These efforts are providing
deeper insight into the three-dimensional patterns of Southern Ocean
change on sub-annual, multi-decadal, and millennial timescales, as well
as potential future changes under a changing climate. In this session,
we welcome contributions concerning the role of the Southern Ocean in
past, present, and future climates. These include (but are not limited
to) small-scale physics and mixing, water mass transformation,
gyre-scale processes, nutrient and carbon cycling, ocean productivity,
climate-carbon feedbacks, and ocean-ice-atmosphere interactions. We will
also discuss how changes in Southern Ocean heat and carbon transport
affect lower latitudes and global climate more generally.
Conveners: Alexander Haumann, Lavinia Patara, Emma Boland, Krissy
Reeve, Mark Hague
Abstract submission:
https://meetingorganizer.copernicus.org/EGU23/session/45625
Solicited speakers: TBD
OS1.9 Under cover: The Southern Ocean's connection to sea ice and ice
shelves
The interaction between the ocean and the cryosphere in the Southern
Ocean has become a major focus in climate research. Antarctic climate
change has captured public attention, which has spawned a number of
research questions, such as: Is Antarctic sea ice becoming more
vulnerable in a changing climate? Where and when will ocean-driven
melting of ice shelves yield a tipping point in the Antarctic climate?
How does the Antarctic Slope Current interact with the continental shelf
and connect the basins around the continent? What role do ice-related
processes play in nutrient upwelling on the continental shelf and in
triggering carbon export to deep waters? Recent advances in
observational technology, data coverage, and modeling provide scientists
with a better understanding of the mechanisms involving ice-ocean
interactions in the far South. Processes on the Antarctic continental
shelf have been identified as missing links between the cryosphere, the
global atmosphere and the deep open ocean that need to be captured in
large-scale and global model simulations.
This session calls for studies on physical and biogeochemical
oceanography and interactions between ice shelves, sea ice and the
ocean. This includes work on all scales, from local to basin-scale to
circumpolar; as well as paleo, present-day and future applications.
Studies based on in-situ observations, remote sensing and regional to
global models are welcome. We particularly invite cross-disciplinary
topics involving glaciology and biological oceanography as well as
contributions from the PALMOD project and the SCAR INSTANT program.
Conveners: Nadine Steiger, Stefanie Arndt, Tiago Dotto, Moritz Kreuzer,
Torge Martin
Abstract submission:
https://meetingorganizer.copernicus.org/EGU23/session/45628
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