Robert Reinecke
2025-02-19 00:15 - 13:00 (Europe/Oslo)
How to use an impossible map – uncertainties in modeling the global water cycle
Robert Reinecke
Global water models allow us to explore the terrestrial water cycle in an earth-sized digital laboratory to guide science and policy. These models simulate increasingly complex representations of different compartments, such as groundwater, and complex processes, such as seawater intrusion. They are coupled with other models, bringing us closer to a digital twin of Earth and enabling us to carry out complex impact assessments of the far future. At the same time, bias-corrected seasonal forecasts allow us to use these models as a window into the near future. However, global water models remain highly uncertain and evaluating them remains challenging. Multiple pathways can be taken to reduce these uncertainties by collecting available knowledge in new ways and analyzing this data with new approaches. In this talk, I will outline new strategies for assessing these complex models differently and rigorously and develop more sustainable research software for a robust science.

Giulio Di Toro
2025-03-05 12:15 - 13:00
Seismic cycle in the presence of hot and pressurized fluids
Giulio Di Toro
Geophysical evidences and the investigation of exposed faults exhumed from upper crustal depths indicate that earthquakes nucleate and propagate often in the presence of fluids at “hydrothermal conditions” typical of geothermal systems (temperature and fluid pressure: 150°C < T 25 MPa). However, also because of technical difficulties in performing rock deformation experiments under such extreme conditions, the evolution of frictional properties of fault materials that contribute to the seismic or aseismic behavior of the fault/fracture network is poorly known.
Here, motivated by the study of fault zones exhumed from 4-8 km depth, we will discuss the results (mechanical data, microstructural-mineralogical-geochemical analysis, etc.) of experiments performed with new devices which combine rotary shear machines and hydrothermal vessels. These experimental devices can reproduce hydrothermal conditions in the laboratory by imposing on simulated faults aseismic (nm/s) to seismic (m/s) slip rates and slip distances up to several meters in the presence of hot (up to 500°C) and pressurized (up to 70 MPa) fluids. Based on the results obtained with these devices, we will discuss fluid-rock interaction, pressure and temperature of the fluid and stress loading in earthquake nucleation and healing of faults of the upper crust (Bolfin fault zone, Atacama Fault System, Chile; Krafla geothermal system, Iceland).
The main objective of this multidisciplinary scientific approach is to reveal (i) the main factors responsible for the seismic and aseismic behavior of natural faults, (ii) how fractures and faults “heal” during the seismic cycle, and (iii) the deformation mechanisms that operate under hydrothermal conditions. These results could indicate new methods for a safer exploitation of deep geothermal reservoirs.

Eivind Olavson Straume
2025-03-19 12:15 - 13:00
The influence of paleogeography on Cenozoic ocean circulation and climate
Eivind Olavson Straume
Paleogeography, influenced by plate tectonics, mantle convection, volcanism, erosion, and sedimentation, cause large-scale ocean circulation and climate changes on geological timescales. Some of the most important paleogeographic changes are linked to opening and closing of key oceanic gateways connecting the world’s major oceanic basins. During the Cenozoic (66 – 0 Ma), several gateways opened and closed (e.g. the Atlantic – Arctic gateways, Tethys Seaway, West Siberian Seaway, and the Southern Ocean gateways), which played an important role in the complex transition from greenhouse to icehouse climate during this time interval. This presentation will mainly focus on the role of paleogeography of oceanic gateways and their impact on ocean circulation, climate and biogeography. I will present a new global Digital Elevation Model (DEM) for the Cenozoic time, with updated regional reconstructions for the closure of the Tethys Seaway, West Siberian Seaway, and opening of the Atlantic – Arctic gateways. These regions were influenced by deep earth processes such as mantle convection and played a key role in shaping the modern global ocean circulation. I will present Earth system model experiments showing the simulated impact on ocean circulation and climate. Ultimately linking deep and solid earth changes, to changes in ocean circulation, climate, and biogeographic dispersals.
snapshot from an animation showing paleogeography and reconstructed mantle densities for the Eocene-Oligocene transition (34 Ma).
Eivind Olavson Straume – Biography (Using ChatGPT)
Dr. Eivind Olavson Straume is a Norwegian geoscientist specializing in paleoclimate, plate tectonics, and mantle dynamics. He is currently a postdoctoral researcher at NORCE Norwegian Research Centre, where he investigates the interactions between tectonics, oceanic gateways, and climate evolution over geological time scales.
Straume earned his Ph.D. from the University of Oslo (UiO) in 2020, defending his dissertation Paleoclimate in the Cenozoic Time: Quantifying the Role of North Atlantic Plate Tectonics and Mantle Processes. His research focuses on reconstructing past oceanic and atmospheric conditions using numerical modeling and geological data, particularly emphasizing the impact of plate tectonics on ocean circulation and climate variability.
He has contributed significantly to global paleobathymetric reconstructions, developing methodologies for estimating sediment thickness and modeling oceanic gateways’ influence on climate transitions. His work has been published in high-impact journals such as Nature Reviews Earth & Environment, Earth and Planetary Science Letters, and Proceedings of the National Academy of Sciences (PNAS).
Beyond his academic research, Straume is an advocate for open science and data visualization. He co-founded s-Ink.org, an initiative aimed at making geoscience graphics more accessible. He has also participated in numerous scientific outreach events, sharing insights on plate tectonics, climate change, and Earth’s dynamic systems.
Currently based in Bergen, Norway, Dr. Straume continues his research at NORCE, collaborating with leading geoscientists to refine models of Earth’s climatic and geological evolution.
Main Collaborators and Ph.D. Supervisors of Eivind Olavson Straume
Ph.D. Supervisors (University of Oslo, CEED/Department of Geosciences)
Prof. Carmen Gaina (CEED, UiO) – Expert in plate tectonics and geodynamics.
Prof. Joseph Henry Lacasce (Department of Geosciences, UiO) – Specialist in ocean dynamics and climate modeling.
Prof. Kerim Hestnes Nisancioglu (Bjerknes Centre for Climate Research, UiB) – Focuses on paleoclimate and ocean circulation.
Main Collaborators
Throughout his career, Dr. Straume has worked closely with several leading geoscientists, including:
Grace Shephard (UiO, CEED) – Collaborated on geodynamic and tectonic reconstructions.
Fabio Crameri (UiO, CEED) – Worked on scientific visualization and geoscience graphics.
Sergei Medvedev (UiO, CEED) – Contributed to paleobathymetry and geodynamic modeling.
Aleksi Nummelin (UiB) – Collaborated on climate modeling and ocean dynamics.
Bernhard Steinberger (GFZ Potsdam) – Worked on mantle convection and dynamic topography.
Claudio Faccenna (Roma Tre University) – Studied the influence of mantle dynamics on paleogeography.
Zhongshi Zhang (NORCE, UiB) – Focused on paleoclimate simulations.
Carmen Gaina (UiO) – Ongoing collaboration on Arctic and Atlantic paleogeography.
Agatha M. de Boer (Stockholm University) – Worked on ocean circulation and climate reconstruction.
Stephanie Werner (UiO, CEED) – Collaborated on tectonics and mantle dynamics.
His work also involves contributions from various institutions, including the Bjerknes Centre for Climate Research (UiB), NORCE, and international geoscience organizations.

Christopher Campbell Di Paolo
2025-03-26 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Searching for lacustrine tsunami deposits with the aid of a numerical model
Christopher Campbell Di Paolo
A Mw ca. 5.9 earthquake occurred in 1601 CE in central Switzerland which triggered multiple subaqueous and subaerial landslides in and around Lake Lucerne. One of these subaqueous landslides triggered a tsunami which hit the city of Lucerne. While this tsunami was documented historically, physical evidence remains sparse. Using the numerical modeling software BASEMENT, we simulated the tsunami’s sediment transport. With this model as a guide, we then took 9 sediment cores in areas of interest. We link an event layer which exists in 4 of the 9 cores to the 1601 CE event. The program BASEMENT proved to be effective at simulating lacustrine tsunami sediment transport.

Julien Vadnais
2025-04-09 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Deep transfer learning for mapping rare Arctic oil seeps observed from satellites
Julien Vadnais – Department of Earth Science, UiB

Abstract
Natural seepage is a significant contributor to marine oil inputs. Remote and intermittent seeps are difficult to monitor in the field, yet oil slicks can be observed by spaceborne synthetic aperture radar (SAR) because they reduce backscatter, creating potential for automatic mapping. In mapping tasks like segmentation, deep learning models excel, albeit needing large amounts of labeled images. To deal with scarcity of labeled images, transfer learning is an approach commonly used in computer vision, though still underutilized in remote sensing.
Different Sentinel-1 acquisition modes, in the Arctic compared to elsewhere, complicate direct model transfer for oil slick mapping. Here, we present a use-case where transfer learning enhances the segmentation of natural oil slicks, most notably in challenging and noisy images. Our method proves efficient even with limited training images, offering new prospects for studying poorly understood or yet undiscovered hydrocarbon seeps.

Chawnghlut Lallawmawma and Mudit Srivastava
2025-04-23 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Title TBD
Chawnghlut Lallawmawma
Mudit Srivastava
Abstract
TBD

Xiaoyue Wang
2025-04-30 00:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Title TBD
Xiaoyue Wang

Abstract
TBD

Bayani Cardenas
2025-05-07 00:15 - 13:00 | Auditorium 5, 3rd floor, Realfabyyget, 41 Allégaten, Bergen, 5007, Norway
Ridge to reef volcanic hydrogeology: submarine groundwater in the world’s most biodiverse coasts
Bayani Cardenas – Jackson School of Geosciences, The University of Texas at Austin

Abstract
Water flows from land to the ocean not only through rivers and estuaries but also below-ground through coastal and submarine aquifers. While the global fresh submarine groundwater discharge (SGD) is less than nutrient inputs are 25% of riverine inputs. This land-ocean connectivity is important for sensitive ecosystems such as coral reefs if the groundwater we present the interesting but in the Philippines which has been coral reefs provide for local communities. We studied coastal and submarine thermal springs associated with high fluxes of acidic waters and carbon dioxide, some of which are within or close to thriving coral reefs. The SGD fluxes are amongst the largest in the world and the SGD carbon dioxide fluxes overwhelm coastal carbon budgets. The presentation delivers explanations for the high SGD, discussing the mechanics and different sources and pathways of water, by bringing together multiple lines of evidence from different methods including deep diving, drones, novel sensors, geochemical tracers, thermal remote sensing, and modeling.

Martin Muravchik
2025-05-14 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
TITLE TBD
Martin Muravchik – Department of Earth Science, UiB

Abstract
TBD

Simon Bufféral
2025-05-21 00:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Title TBD
Simon Bufféral – ENS, Paris

Abstract
TBD

Ingra Malucelli Barbosa
2025-05-28 00:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Title TBD
Ingra Malucelli Barbosa – Department of Earth Science, UiB

Abstract
TBD

Francina Saiz Garcia
2025-06-04 00:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Title TBD
Francina Saiz Garcia – Department of Earth Science, UiB

Abstract
TBD

Grant Ferguson
2025-06-11 00:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Title TBD
Grant Ferguson

Abstract
TBD

Kirabo E. Mugwanya
2025-06-18 00:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
Title TBD
Kirabo E. Mugwanya – Department of Earth Science, UiB

Abstract
TBD

Leonardo Muniz Pichel
2026-02-11 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Sebastian Wolf
2026-03-04 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Severine Russo
2026-03-11 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Helene Stemland
2026-03-25 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Kenneth Mangersnes
2026-04-08 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Anna Karine Døsen
2026-04-15 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Zia Møller Moltesen Przyswitt
2026-04-22 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

EGU practice session
2026-04-29 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Master students presentations
2026-05-06 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Julie Svendsmark
2026-05-13 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Christopher Di Paolo
2026-05-20 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Ingra Barbosa
2026-05-27 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Marianna Anichini
2026-06-03 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway

Elco Luijendijk
2026-06-10 12:15 - 13:00 | Kontinentalsokkelen (2G16e), Realfagbygget, Allégaten 41, Bergen, 5007, Norway
