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EGU General Assembly 2020

Dates:
03.05 - 08.05.2020  
Venue:
Vienna, Austria
Contact person:
EGU, This email address is being protected from spambots. You need JavaScript enabled to view it.
Website:
https://www.egu2020.eu/

The General Assembly 2020 of the European Geosciences Union (EGU) will be held in Vienna, Austria, from 3-8 May 2020.

The assembly is open to scientists of all nations.

Venue

The Austria Center Vienna (ACV)
Bruno-Kreisky-Platz 1
1220 Vienna

Description

The EGU 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.

Deadlines

- Public call-for-session-proposals other program groups: 25 June to 5 September 2019
- Session program finalization: 11 September to 9 October 2019
- Abstract submission: 15 October 2019 to 15 January 2020
- Support application: 15 October to 1 December 2019

Additional information on proceedings can be accessed here: https://egu2020.eu/about_and_support/deadlines_and_milestones.html

Financial support

Financial support applications close 1 December. If you intend to apply for support, you also need to submit an abstract by 1 December. All details and requirements: https://egu2020.eu/about_and_support/roland_schlich_travel_support.html

Abstracts

The abstract submission deadline is 15 January 2020 at 13:00 CET: https://meetingorganizer.copernicus.org/EGU2020/sessionprogramme

Find out how to submit an abstract here: https://egu2020.eu/abstracts_and_programme/how_to_submit_an_abstract.html

Registration

Online registration will be possible from the end of November 2019 until the last day of the EGU General Assembly 2020: https://egu2020.eu/register_and_venue/registration.html

Program

The meeting program will be available on 4 March 2020. Once the sessions have been finalized, the program can be found here: https://meetingorganizer.copernicus.org/EGU2020/provisionalprogramme

Awards

PAGES 2k Network CoralHydro2k leader Kim Cobb will receive the Hans Oeschger Medal. It is awarded to scientists for their outstanding achievements in ice research and/or short-term climatic changes (past, present, future). See all the full list of award winners here.

Further information

General information can be found at: https://egu2020.eu/about_and_support/general_information.html

Go to the official website: https://www.egu2020.eu/

PAGES working group sessions

i. 2k Network: CL1.18 Studying the climate of the last two millennia (Session ID: 36726)
Convener: Sarah S. Eggleston. Co-conveners: Stella Alexandroff, Hugo Beltrami, Oliver Bothe, Andrea Seim

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.

ii. ACME: CR7.1 Cryosphere change impacts on marine ecosystems and biogeochemical cycling - bridging reconstructions, observations and modelling (Session ID: 34970)
Convener: Sofia Ribeiro. Co-conveners: Mark Hopwood, Anna Pienkowski, Letizia Tedesco

Decreasing sea-ice coverage, increasing permafrost-derived inputs and increasing glacier discharge will continue to affect the Arctic Ocean region in coming decades under all future climate scenarios. Such changes at the interface between the ocean and the cryosphere across the Arctic basin raise questions about the downstream effects in marine ecosystems, particularly with respect to ecosystem services such as fisheries and carbon sequestration. In order to understand the effect of changing cryosphere-derived inputs on the Arctic marine environment, knowledge concerning the physical and biochemical perturbations occurring in the sea ice and water column and the structure, function and resilience of affected ecosystems must be integrated.

In this session we explicitly welcome cross-disciplinary attempts to understand how far reaching the effects of sea-ice, permafrost derived material and glacial changes are on marine biogeochemistry, productivity, biodiversity, and ecosystem services. Topics may include, yet are not limited to, the effect of sea-ice, permafrost, and glacier discharge on sea-ice and water column structure, primary and secondary production, community structure, macronutrient and micronutrient availability, microbial processes, the carbonate system, and the biological carbon pump. Modelling experiments, and studies based on long-term observational records including sediment traps and proxy reconstructions from marine sediment cores are also welcome.

iii. CVAS: CL4.10 Climate Variability Across Scales and Climate States (Session ID: 36723)
Convener: Thomas Laepple. Co-conveners: Isabel de Lima, Shaun Lovejoy, Kira Rehfeld

The earth's climate is highly variable on all spatial and temporal scales, and this has direct consequences for society. For example, changes in variability (spatial or temporal) can impact the recurrence frequency of extreme events. Yet, it is unclear if a warmer future is one with more, or with less, climate variability, and at which scales, as a multitude of feedbacks is involved, and the instrumental record is short.

We welcome contributions that improve quantification, understanding and prediction of climate variability in the Earth System across space and time scales 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. Members of the PAGES working group on Climate Variability Across Scales (CVAS) are welcome.

This session aims to provide a forum to present work on:

- the characterization of climate dynamics using variety of techniques (e.g. scaling and multifractal techniques and models, recurrence plots or variance analyses) to study its variability including periodicities, noise levels, or intermittency.
- the relationship between changes in the mean state (e.g. glacial to interglacial, preindustrial to present to future), and higher-order moments of relevant climate variables, to changes in extreme event occurrence and the predictability of climate.
- the role of ocean, atmosphere, cryosphere and land surface processes in fostering long-term climate variability through linear – or nonlinear – feedbacks and mechanisms
- the attribution of climate variability to internal dynamics, or the response to natural (volcanic or solar) and anthropogenic forcing
- the interaction of external forcing (e.g. orbital forcing) and internal variability such as mechanisms for synchronization and pacing of glacial cycles.
- the characterization of probabilities of extremes, including rare “black swan” events and the linkage between slow (interannual to millennial) climate variability and extreme event recurrence
- the development and characterization of statistical tools and stochastic models to quantify the distribution, or scaling, of climate variability over a wide range of timescales from short, noisy and irregular (paleo-)climate time series, such as robust estimators for power spectral analyses, fluctuation analyses (detrended, Haar or other) and wavelets.

iv. Floods Working Group: HS2.4.2 Extreme hydrological events of the Past (Session ID: 35539)
Convener: Juan Pablo Corella. Co-conveners: Juan Antonio Ballesteros, David Barriopedro Cepera, Bruno Wilhelm

Extreme hydrological events disasters such as droughts, floods and storms lead to the most devastating natural in terms of casualties and economic losses. In the context of current global warming, there is a high uncertainty on the observed trends and projected changes in extremes at a global scale. Extreme events that occurred in the past play here an important role as they enable us to investigate the dynamics of extremes under natural climate variability beyond the instrumental period.

The main goal of this session is to bring together scientist, scholar and engineers that explore the variability and controlling mechanisms of past hydrological extremes on decadal to millennial time-scales based on different historical and natural archives such as tree-rings, speleothems, lacustrine and marine sediments and ice cores. We also welcome contributions that integrate both, proxy data and climate modelling to understand the external and internal forcing controlling the hydrological cycle. We also invite contributions that explore new statistical modelling approaches aiming to quantitatively assess the climate drivers of the non-stationary behaviours of extreme events frequency and intensity.

v. LandCover6k: BG3.32 Holocene land-use and land-cover change: advances and applications - from quantifying vegetation change to estimating human impacts on biodiversity (Session ID: 35254)
Convener: Jessie Woodbridge. Co-conveners: Ralph Fyfe, Petr Kunes, Furong Li

The world has been significantly transformed by human actions at least throughout the course of the Holocene with implications for ecological functioning, climate regulation, etc. Central to furthering understanding of the timing, extent and impact of these transformations is quantification of vegetation cover and land-use at local, regional and continental scales, and at centennial to millennial timescales. Recent accelerations in the intensity of human land use have been implicated for changes in biodiversity, however, relationships between land use change and diversity are complex and include important historical legacies. This session explores recent developments in, and applications of, the quantification of land-cover and land-use from palaeobotanical and palynological data in globally diverse landscapes. We welcome all contributions on methodological advances, and applications to historic and prehistoric long-term dynamics and drivers of land-use, anthropogenic land-cover and land-system change, as well as shifts in biodiversity patterns. These contributions may include pollen and other palaeobotanical approaches to land-use and land-cover change, archaeological and historical records and related palaeoecological data (e.g. palaeoentomological data), as well as modelling studies on anthropogenic land-cover change (ALCC) and climate-land use interactions.

This session contributes to the PAGES LandCover6k working group. The primary goal of LandCover6k is to use global empirical data on past land-use and anthropogenic land-cover change to evaluate and improve Anthropogenic Land-Cover Change scenarios for earth system modellers (e.g. the World Climate Research Programme CMIP and PMIP initiatives). However, submissions do not need to be explicitly linked to this working group and we welcome abstracts with wider reaching themes spanning environmental responses to human activities, such as biodiversity loss and changes in ecosystem functioning.

vi. PALSEA: SSP1.2 New and re-interpreted Pleistocene sea-level records from around the Globe (Session ID: 36473)
Convener: Deirdre Ryan. Co-conveners: Victor Cartelle, Kim Cohen, Alessio Rovere

Directly observable relative sea-level (RSL) indicators (e.g. shore platforms, coral reef terraces, beach deposits, etc.) are used to constrain paleo sea levels and ice sheet extents and to improve GIA models and future projections of sea-level and ice-sheet responses. Biological proxies associated with and the physical characteristics of RSL indicators can be used to infer paleoclimate and together help inform climatic change and sea-level fluctuations throughout the Pleistocene. The preservation and distribution of these records assists in understanding regional earth surface processes following their deposition.

Recent advances in sea-level studies have called for increased spatiotemporal density of RSL indicators, including submerged and near-field localities, analyzed using standard definitions and methods. This session welcomes contributions to the global record of well-constrained Pleistocene sea-level indicators and associated proxies from a variety of coastal environments, not limited to peak interglacial periods. Re-interpretations of previously described records due to advancement in methods are also welcome.

This session falls within the purview of PALSEA (PALeo constraints on SEA level rise), a PAGES-INQUA Working Group, and the ERC-funded projects, WARMCOASTS and RISeR.

vii. VICS: ITS2.13/AS4.29 Characterizing, understanding, predicting the radiative effects of major volcanic eruptions and their impacts on climate and societies (Session ID: 35738)
Convener: Myriam Khodri. Co-conveners: Claudia Timmreck, Davide Zanchettin, Graham Mann, Matthew Toohey

Volcanic eruptions are a major natural driver of climate variability at interannual to multidecadal time scales. Assessment of volcanically-forced climate variability is complicated by many limiting factors, including the paucity of observed eruptions, uncertainties associated with volcanological forcing datasets for the current and pre-instrumental periods, limitations of proxy-based climate evidence, uncertainties of global aerosol model simulations and the apparent large inconsistencies in the responses to volcanic forcing simulated by current climate models.

This session aims to highlight new results from integrative research on the climatic response to volcanic eruptions of Pinatubo-magnitude and larger, with a special focus on studies conducted under the umbrella of the CMIP6, in particular the VolMIP activity. This session invites contributions that explore the responses of the coupled ocean-atmosphere system to volcanic forcing, from the characterization of past volcanically-forced climate variability, particularly during the Common Era, and on the identification of dominant mechanisms of interannual-to-interdecadal volcanically-forced variability by means of observations, climate reconstruction studies as well as modeling approaches.

This session also welcomes presentations contributing to current international SPARC-SSiRC and PAGES-VICS activities from research aimed at better understanding the stratospheric aerosol layer, its volcanic perturbations and impacts on historical and modern societies. We further invite observational and modelling studies of the 2019 Raikoke aerosol cloud, from recent field campaigns and contributions on the potential role of volcanic eruptions on future climate variability and predictability.

PAGES Integrative Activities session

i. Data Stewardship Integrative Activity: CL5.4 Challenges and opportunities arising from palaeo-data compilations (Session ID: 36725)
Convener: Nikita Kaushal. Co-conveners: Laia Comas-Bru, Franziska Lechleitner, Sophie Warken

The number of past climatic and/or ecological data generated from a range of distinct proxies and natural archives is continuously growing. Hence, significant advances in palaeoclimate research can now be made using large-scale compilations. Funding agencies are increasingly requesting projects to align with the FAIR Data Principles to make their data Findable, Accessible, Interoperable, and Reusable and large-scale open-access compilations are one way to abide by this. Specific needs for establishing such large-scale databases are 1) comprehensive and meticulous database management and 2) the development of novel approaches to unlock their full potential (i.e., to reveal supra-regional and global spatial and temporal patterns in palaeoclimate conditions that are not possible with single records). Amongst others, the main challenges relate to getting access to data not already publicly available, the quality of the records, and data stewardship. This implies that a considerable effort must be spent in identifying records and in formulating/implementing comprehensive workflows for community-based quality checking. In addition, transparent and efficient communication is critical.

This session aims at presenting current advances in palaeoclimate and palaeoecology based on local- to global-scale syntheses. Bringing together palaeoclimate databases with observational and/or climate modelling outputs is crucial for improving our understanding of past climate conditions, to identify signal and noise components and their temporal dynamics, and to gain insight into the quality of data-model comparisons. We therefore aim at bridging the gap between data generation, earth system modeling and data assimilation studies.

We encourage submissions on data compilations, cross-comparison and modelling studies utilizing data repositories and databases (e.g. NEOTOMA, SISAL, PAGES 2k Network, ACER, EPD), including, but not limited to:

- Comparative studies using one or several archives (e.g. including tests of temporal and spatial synchronicity of past regional to global climate changes)
- Data-Model comparisons (including isotope enabled models, proxy system models or local calibration studies)
- Integrative multi-proxy/multi-archive approaches
- Large scale age model comparisons and record quality assessment studies, including methods aimed at cross-validation between different records and variable spatial and temporal scales.

This session is co-sponsored by PAGES.

Short course

i. CVAS: SC2.12 Scales and Scaling in the Climate System (Session ID: 36396)
Convener: Shaun Lovejoy. Co-conveners: Christian Franzke, Thomas Laepple

The climate is highly variable over wide ranges of scale in both space and time so that the amplitude of changes systematically depends on the scale of observations. As a consequence, climate variations recorded in time series or spatial distributions, which are produced through modelling or empirical analyses are inextricably linked to their space-time scales and is a significant part of the uncertainties in the proxy approaches. Rather than treating the variability as a limitation to our knowledge, as a distraction from mechanistic explanations and theories, in this course the variability is treated as an important, fundamental aspect of the climate dynamics that must be understood and modelled in its own right. Long considered as no more than an uninteresting spectral “background”, modern data shows that in fact it contains most of the variance.

We review techniques that make it possible to systematically analyse and model the variability of instrumental and proxy data, the inferred climate variables and the outputs of GCM’s. These analyses enable us to cover wide ranges of scale in both space and in time - and jointly in space-time - without trivializing the links between the measurements, proxies and the state variables (temperature, precipitation etc.). They promise to systematically allow us to compare model outputs with data, to understand the climate processes from small to large and from fast to slow. Specific tools that will be covered include spectral analysis, scaling fluctuation analysis, wavelets, fractals, multifractals, and stochastic modeling; we discuss corresponding software.

PAGES-endorsed session

i. PlioVAR: CL1.10 Pliocene climate variability: lessons learned for a warmer world (Session ID: 36743)
Convener: Erin McClymont. Co-conveners: Tijn BerendsECS, Tim Herbert, Antje Voelke

A range of future climate scenarios are projected for higher atmospheric CO2 concentrations. The Pliocene epoch, ~5.3-2.7 Ma, has been proposed as an analogue for future climates, since it is characterised by CO2 concentrations which align with those recorded today and projected for the end of this century under moderate emissions scenarios. The Pliocene includes evidence for climate variability at orbital and sub-orbital timescales, including the development of glaciations, which offer important contrasts to the pronounced glacial-interglacial cycles of the Pleistocene. There is also the opportunity to investigate climate response to longer-term processes, including ocean gateway changes and tectonic uplift.

In this session we invite contributions which examine climate variability within the Pliocene epoch at a range of scales. We welcome both data and model perspectives on ocean/atmosphere circulation, terrestrial environmental responses, ice sheets and sea-level, atmospheric CO2, biogeochemical cycling and/or ecosystem responses. We also encourage contributions linked to the PAGES-PlioVAR and PlioMIP2 programmes.

(PlioVAR is a former PAGES working group and PAGES has endorsed this session.)

Endorsed and affiliated group sessions

i. PMIP: CL1.22 Data-model integration for a better understanding of past climatic and environmental dynamics (Session ID: 36729)
Convener: Laia Comas-Bru. Co-conveners: Sandy Harrison, Kira Rehfeld

Palaeoenvironmental records and climate models are two contrasting and yet complementary sources of information on past climates. Both approaches independently generate insights into the dynamics of the climate system. However, more information can be extracted about the drivers of climate variability and change when the two approaches are combined. Climate reconstructions can be used to constrain and evaluate model simulations, while climate models can be used to explore the mechanisms that have driven past climatic changes. Palaeoclimate data–model comparisons can also be used to assess model performance, to constrain projections of future climate change, or to study the drivers of climate variability and change.

Here we invite contributions that integrate data from observational sources and climate models; data-model comparisons (including isotope enabled models or local calibration studies); studies that use data records to evaluate climate models or studies that use climate model outputs to understand the physical controls of climate variability.

ii. Varves Working Group: CL5.1 Geochronological tools for environmental reconstructions (Session ID: 36764)
Convener: Irka Hajdas. Co-conveners: Andreas Lang, Gina E. Moseley, Arne Ramisch

During the Quaternary Period, the last 2.6 million years of Earth's history, changes in environments, and climate shaped human evolution. In particular, large-scale features of atmospheric circulation patterns varied significantly due to the dramatic changes in global boundary conditions that accompanied abrupt changes in climate. Reconstructing these environmental changes relies heavily on precise and accurate chronologies. Dependent on records, time range, and research questions, different methods can be applied, or a combination of various dating techniques. Varve counting and dendrochronology allow for the construction of high-resolution chronologies, whereas radiometric methods (radiocarbon, cosmogenic in-situ, U-Th) and luminescence aim at longer time scales and often are complementary or supportive.

In this session, contributions are particularly welcome that aim to (1) reduce, quantify and express dating uncertainties in any dating method, including high-resolution radiocarbon approaches; (2) use established geochronological methods to answer new questions; (3) use new methods to address longstanding issues, or; (4) combine different chronometric techniques for improved results, including the analysis of chronological datasets with novel methods, e.g. Bayesian age-depth modelling. Applications may aim to understand long-term landscape evolution, quantify rates of geomorphological processes, or provide chronologies for records of climate change.

PAGES' SSC Member session

CL4.26 Using Earth system science to understand climate change and its impacts: Results of the Franco-German “Make Our Planet Great Again” research initiative and beyond (Session ID: 36746)
Convener: Henry Wu. Co-conveners: Gayane Asatryan, Emilie Capron

At the 2015 Paris COP21 climate conference, 195 countries committed to reduce their greenhouse gas emissions and make efforts to significantly limit man-made global warming to below 2°C above pre-industrial levels. France and Germany joined forces in this fight against global warming by creating the “Make Our Planet Great Again” research initiative covering research in Earth system science that aims to better understand climate change and its impacts on natural and socio-economic systems.

In this interdisciplinary session, we welcome data- and model-based research undertaken within, but also outside this international initiative, that provides new insights into the mechanisms of past, present and future climate changes and the associated impacts on the oceans, the cryosphere, coastal regions, and terrestrial systems. Innovative research contributions that can lead towards the ultimate goals of the Paris Agreement ranging from basic research to solution-oriented research are also encouraged.