EGU25 – General Assembly | 27 April – 2 May 2025 | Vienna, Austria

The European Geosciences Union will be holding its General Assembly 2025 from 27th April to 2nd May 2025, in Vienna, Austria, as well as online.

Aims & Scope of EGU25

The EGU General Assembly 2025 brings together geoscientists from all over the world to one meeting covering all disciplines of the Earth, planetary, and space sciences. The EGU aims to provide a forum where scientists, especially early career researchers, can present their work and discuss their ideas with experts in all fields of geoscience.

If you are interested in East Antarctica and the cryosphere, submissions to the EGU session “CR1.5: Sensitivity of the East Antarctic Ice Sheet to Past, Present and Future Climate Change” are now open.

A session description can be found here: https://meetingorganizer.copernicus.org/EGU25/session/52483.

The session aims to bring together people working on modern observations of EAIS dynamics, ice shelves, mass balance, and palaeo-records of ice-sheet change, with those using numerical modelling to:

• facilitate greater interaction between these communities
• highlight recent progress
• and identify and co-ordinate efforts for future research.

The invited speaker for the session is Florence Colleoni (OGS).

Deadline for abstract submission is 15 January 2025, 13.00 CET.

If there are any questions don’t hesitate to get in touch with Jennifer Arthur (jennifer.arthur@npolar.no) or any of the other convenors:

• Chris Stokes: c.r.stokes@durham.ac.uk
• Laura De Santis: ldesantis@ogs.it
• Nancy Bertler: nancy.bertler@vuw.ac.nz

Deadline for abstract submission: 15/01/25

CR2.7 Boundary Conditions and Cryospheric Processes: Investigating Earth-Ice Interactions Beneath Ice Sheets, Shelves and Glaciers
This session addresses the detailed connections between subglacial boundary conditions and the behaviour of ice sheets, ice shelves, and snow cover. The solicited author is Helen Ockenden (Grenoble).

Please consider submitting abstracts related to our EGU 2025 session CR6.1 “Past Sea Ice Dynamics and Climate Interactions” co organised with CL1.2

This session aims to bring together research on past sea ice dynamics during both colder and warmer-than-modern climate states, enhancing our understanding of sea ice processes and their role in climate systems.  We are interested in Antarctic and Arctic sea ice records, from data and modelling, so we hope that this session will be of interest to INSTANT members.

We welcome the following types of submissions:

Both proxy and model studies that link past sea ice changes with other climatic processes, such as temperature changes, moisture source variations, or major ocean state changes like AMOC.

• Proxy evidence of past sea ice spatial and temporal changes.
• Studies that refine existing records or generate new time series from ice, terrestrial, and marine cores, including sea ice proxies such as IP25 or IPSO25 in marine cores, and Bromine, Iodine, MSA, water isotopes, and sea salt sodium from ice cores.
• Investigations into sea ice as both a driver and responder to high-frequency climate variability, with data from both polar oceans exploring Antarctic and Arctic sea ice extent alongside co-recorded climate feedbacks.

Please submit your abstract here by the 15^th of January 2025: https://meetingorganizer.copernicus.org/EGU25/session/52608

Convener: Frank Lamy | Co-conveners: Julia Gottschalk, Francois Fripiat, Dimitris Evangelinos, Gisela Winckler

The Southern Ocean and Antarctic ice sheet stability play a critical role for global ocean circulation, climate, the marine carbon cycle and global sea level. While reconstructions of southern, high-latitude paleoclimate are still sparse, recent years have seen much progress, including a multitude of land and sea-based coring efforts, major IODP expeditions and work on legacy sediment cores. This session aims to bring together researchers working on understanding key climate processes across all sectors of the Southern Ocean and/or Antarctic ice sheet dynamics, their interaction with each other and associated impacts on global climate. We invite contributions from a broad range of numerical modeling studies and proxy reconstructions, including surface ocean changes, deep water circulation, stratification, sea ice, nutrient distribution and utilization, lithogenic inputs and oceanic fronts as well as ice sheet retreat/advance and meltwater supply. Studies may address a wide range of timescales from tectonic and orbital to millennial. We also welcome submissions that compare recent observations with paleoclimate records or that advance methods for reconstructing polar paleoclimate.

Please submit your abstract here by the 15^th of January 2025: https://meetingorganizer.copernicus.org/EGU25/session/51602