Abstract and Town Hall/Event submission is open. The submission deadline is 29 September, 11:59 pm Eastern Daylight Time.
Southern Ocean freshening has various sources li nking to land ice, sea ice, the atmosphere and ocean dynamics itself. We th us must work across disciplines to fully understand sources and consequence s, to be able to detect, attribute and predict. For the Ocean Sciences Meeting 2022 we thus invite you to contribute with your work a nd experience to this discussion in order to bridge still existing gaps in knowledge, data coverage and model capabilities.
Please submit an abstract to
HL16 Sources and c
onsequences of Southern Ocean freshening: Toward synthesising observations
and modelling
The Southern Ocean is consistently freshe
ning, particularly in the upper layers and near the Antarctic coast. Freshe
ning has been attributed to an increase in precipitation, basal melting of
ice shelves and enhanced sea-ice melt and export. Freshening has also been
observed in the abyssal Antarctic bottom water, formed close to the Antarct
ic coast and exported globally. The exact proportionality is highly uncerta
in, but all these processes contribute to formation of sea ice through stre
ngthening surface stratification, changes in ocean circulation, and sea lev
el rise. Implications for the oceanic heat content and the stability of the
Antarctic ice sheet are likely but not yet well known. As the climate syst
em continues to warm the relative magnitude of these processes and associat
ed feedbacks may change leading to uncertain impacts on polar and global cl
imate.
With this session we aim beyond sharing most recent research an
d plan for an engaged exchange among the scientific communities of ocean an
d cryosphere, modeling and observations, early career researchers and senio
r experts to examine the current state of knowledge on Southern Ocean fresh
ening and discuss future research. We are particularly interested in work c
losing the gap between observations and modelling; this includes coordinate
d monitoring approaches and targeted joint model experiments. We specifical
ly welcome ideas and proposals for highlighting the Southern Ocean in the j
ust starting UN decade of ocean science.
Abstract submis
sion is open until 29 September, 11:59 pm EDT at https://osm2022.secure
-platform.com/a
Looking forward to your presentatio
n and an exciting discussion
Torge Martin and Inga Smith