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EGU General Assembly 2023 - Vienna, Austria

Vienna, Austria
Working groups


Date: 23-28 April 2023
Location: Vienna, Austria & Online


The European Geosciences Union (EGU) is the leading organisation for Earth, planetary and space science research in Europe. With our partner organisations worldwide, we foster fundamental geoscience research, alongside applied research that addresses key societal and environmental challenges. Our vision is to realise a sustainable and just future for humanity and for the planet.

It is a non-profit international union of scientists with about 18,000 members from all over the world. Membership is open to individuals who are professionally engaged in or associated with geosciences and planetary and space sciences and related studies, including students and retired seniors.

The EGU publishes a number of diverse scientific journals, which use an innovative open access format, and organises topical meetings, and education and outreach activities. It also honours scientists with a number of awards and medals. The annual EGU General Assembly is the largest and most prominent European geosciences event, attracting over 18,000 scientists from all over the world in the year 2021. The meeting’s sessions cover a wide range of topics, including volcanology, planetary exploration, the Earth’s internal structure and atmosphere, climate, as well as energy and resources.

The EGU was established in September 2002 as a merger of the European Geophysical Society (EGS) and the European Union of Geosciences (EUG), and has headquarters in Munich, Germany.


Austria Center Vienna


The EGU23 call-for-abstracts will open on 1 November 2022.
The abstract submission deadline is 10 January 2023, 13:00 CET.

For General information, registration, and submission of abstracts, please email:

PAGES working group sessions

2k Network

CL1.2.4 - Studying the climate of the last two millennia
Co-sponsored by PAGES 2k
Convener: Andrea Seim
Co-conveners: Hugo Beltrami, Stefan Brönnimann, Nikita Kaushal, Steven Phipps

This session aims to place recently observed climate change in a long-term perspective by highlighting the importance of paleoclimate research spanning the past 2000 years. We invite presentations that provide insights into past climate variability, over decadal to millennial timescales, from different paleoclimate archives (ice cores, marine sediments, terrestrial records, historical archives and more). In particular, we are focussing on quantitative temperature and hydroclimate reconstructions, and reconstructions of large-scale modes of climate variability from local to global scales. This session also encourages presentations on the attribution of past climate variability to external drivers or internal climate processes, data syntheses, model-data comparison exercises, proxy system modelling, and novel approaches to producing multi-proxy climate field reconstructions such as data assimilation or machine learning.

NP3.1 - Climate Variability Across Scales
Co-organized by CL4, co-sponsored by PAGES 2k
Convener: Raphael Hébert
Co-conveners: Sylvia G. Dee, Shaun Lovejoy

We welcome contributions that improve quantification, understanding, and prediction of climate variability in the Earth system across space and timescales through case studies, idealized or realistic modeling, synthesis, and model-data comparison studies that provide insights into past, present and future climate variability on local to global, and synoptic to orbital timescales. In particular, we welcome contributions making use of paleoclimate data and modelling to understand changes in the climate system dynamics and variability during the last glacial cycle, and the related implications for the future.

This session aims to provide a forum to present work on:
1. Characterization of climate dynamics using a variety of techniques (e.g. scaling and multifractal techniques and models, recurrence plots, variance analyses).
2. Proxy-system modelling to improve paleoclimate reconstructions and model-data comparisons
3. Relationship between mean state changes (e.g. glacial to interglacial or pre-industrial to present to future), and higher-order moments of relevant climate variables, including extreme-event occurrence and predictability.
4. Role of the ocean, atmosphere, cryosphere and land-surface processes in fostering long-term climate variability through linear – or nonlinear – feedbacks and mechanisms.
5. Attribution of climate variability to internal and/or forced dynamics, including natural (e.g. volcanic and solar) and anthropogenic forcing changes.
6. Synchronization and pacing of glacial cycles through dynamical interaction of external forcing (e.g. orbital forcing) and internal variability.
7. Characterization of the probabilities of extremes, including linkage between slow climate variability and extreme event recurrence.
Members of the PAGES working group on Climate Variability Across Scales (CVAS) and the German Climate Modeling Initiative PalMod are particularly welcome.

Speleothem Isotopes Synthesis and AnaLysis (SISAL)

CL1.2.2 - Speleothems, cave deposits, and karst records - Archives of Modern and Palaeoenvironmental Change
Co-organized by SSP3, co-sponsored by PAGES
Convener: Sophie Warken
Co-conveners: Nikita Kaushal, Gabriella Koltai, Vanessa Skiba, Laura Endres

Cave and karst formations such as speleothems, cave ice, cryogenic carbonate, sediments, tufa and travertines are important terrestrial archives of past environmental and climatic changes. They provide high resolution and accurately dated records using not only traditional geochemical tracers such as stable isotopes (d13C, d18O), trace elements, fluid inclusion analyses, or dead carbon fractions but also innovative methods such as organic markers or new paleothermometers. In recent years, the fields of cave and karst-based research has seen:
(1) Development of novel and innovative methods as well as continuously improving analytical capacity of established techniques allowing new applications also of traditional markers (e.g. combined multi-proxy approaches),
(2) Increasing numbers of long-term monitoring campaigns and cave-analogue experiments facilitating (quantitative) interpretation of proxy time series,
(3) Advancement of process and proxy-system models which are necessary to understand and disentangle proxy-relevant processes such as water infiltration, carbonate dissolution, degassing, precipitation, or diagenesis,
(4) The development and extensive use of databases such as SISAL (Speleothem Isotope Synthesis and AnaLysis) which enable regional-to-global and seasonal-to-orbital scale analyses of the relationships between proxies and environmental parameters,
Applied together, advancements in these cornerstones pave the way towards robust and quantitative reconstructions of climate and environmental variability. We invite cave- and karst-related modern and paleo studies to this session, which show progress in one of the four outlined domains. This comprises all integrated and interdisciplinary research helping to improve the understanding of the environment in which continental carbonates grow and the incorporation of climate-sensitive proxies at various time scales. In particular, this includes speleothem-based and other records using traditional proxies or novel markers and methods to reconstruct paleoclimate and paleoenvironment, data analysis studies and data-model comparisons. In addition, research contributing to current international co-ordinated activities, such as the PAGES working group on Speleothem Isotopes Synthesis and AnaLysis (SISAL) and others are welcome.

Volcanic Impacts on Climate and Society (VICS) 

AS3.13  - Understanding volcano-climate impacts and the stratospheric aerosol layer
Convener: Davide Zanchettin
Co-conveners: Myriam Khodri, Graham Mann, Lauren Marshall, Shih-Wei Fang

Volcanic aerosol clouds from major tropical eruptions cause periods of strong surface cooling in the historical climate record and are dominant influences within decadal surface temperature trends. Advancing our understanding of the influence of volcanoes on climate relies upon better knowledge of (i) the radiative forcings of past eruptions and the microphysical, chemical and dynamical processes which affect the evolution of stratospheric aerosol properties and (ii) the response mechanisms governing post-eruption climate variability and their dependency on the climate state at the time of the eruption. This can only be achieved by combining information from satellite and in-situ observations of recent eruptions, stratospheric aerosol and climate modelling activities, and reconstructions of past volcanic histories and post-eruption climate state from proxies.

In recent years the smoke from intense wildfires in North America and Australia has also been an important component of the stratospheric aerosol layer, the presence of organic aerosol and meteoric particles in background conditions now also firmly established.

This session seeks presentations from research aimed at better understanding the stratospheric aerosol layer, its volcanic perturbations and the associated impacts on climate through the post-industrial period (1750-present) and also those further back in the historical record. Observational and model studies on the 2022 eruption of Hunga Tonga are especially welcomed.

We also welcome contributions to understand the societal impacts of volcanic eruptions and the human responses to them. Contributions addressing volcanic influences on atmospheric composition, such as changes in stratospheric water vapour, ozone and other trace gases are also encouraged.

The session aims to bring together research contributing to several current international co-ordinated activities: SPARC-SSiRC, CMIP6-VolMIP, CMIP6-PMIP, and PAGES-VICS.

PAGES-related sessions

CL1.5 - The state-of-the-art in ice coring sciences 
Co-conveners: Michael Dyonisius, Helle Astrid Kjær, Anja Eichler
Convener: Michael Döring

The half-century since the first deep ice core drilling at Camp Century, Greenland, has seen extensive innovation in methods of ice sample extraction, analysis and interpretation. Ice core sciences include isotopic diffusion analysis, multiple-isotope systematics, trace gases and their isotopic compositions, ice structure and physical properties, high-resolution analysis of major and trace impurities, and studies of DNA and radiochemistry in ice, among many others. Many climate and geochemical proxies have been identified from ice cores, with ongoing effort to extend their application and refine their interpretation. Great challenges remain in the field of ice coring sciences, including the identification of suitable sites for recovery of million-year-old ice; spatial integration of climate records (e.g. PAGES groups Antarctica2k and Iso2k); and deeper understanding of glaciological phenomena such as streaming flow, folding of layers and basal ice properties. This session welcomes all contributions reporting the state-of-the-art in ice coring sciences, including drilling and processing, dating, analytical techniques, results and interpretations of ice core records from polar ice sheets and mid- and low-latitude glaciers, remote and autonomous methods of surveying ice stratigraphy, and related modelling research.

EGU 2023 awards and medals

Hugues Goosse, a PAGES fellow who served on the PAGES Scientific Steering Committee from 2013-2018 will be receiving the Hans Oeschger Medal.

"This medal was established by the Climate: Past, Present & Future Division in recognition of the scientific achievement of Hans Oeschger. It is awarded to scientists for their outstanding achievements in ice research and/or short-term climatic changes (past, present, future)."

Bette L. Otto-Bliesner, a PAGES fellow, and PAGES Co-Chair from 2006-2011, will be receiving the Milutin Milankovic Medal.

"This medal was established by the Climate: Past, Present & Future Division in recognition of the scientific and editorial achievements of Milutin Milankovic. It is awarded to scientists for their outstanding research in long-term climatic changes and modelling."

Access the full list of EGU 2023 award recipients 

Further information

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