The Arctic Ocean Dynamics Workshop 2025

Porté par l'ENS-PSL, le département de Géosciences et l'Institut Pierre-Simon Laplace

Come reunite with your Arctic research colleagues for stimulating scientific exchange in the vibrant city of Paris. The aim of this workshop is to survey key theoretical ideas, identify knowledge gaps and stimulate further advances in our understanding of Arctic Ocean dynamics.

Program


This year's program features five themes over three days:

  • Arctic Ocean Circulation and Structure — Exploring the spatial patterns, variability, and dynamical drivers of Arctic Ocean circulation and mixing.
  • Sea Ice–Ocean Coupling and Polar Connections — Interactions between sea ice and ocean processes, from floe-scale coupling to large-scale polar variability.
  • Freshwater and Overturning Circulation — Linking freshwater pathways, stratification, and overturning dynamics to the evolving Arctic–Atlantic system.
  • Beaufort Gyre Dynamics and Variability — Processes controlling the stability, structure, and energy pathways of the Beaufort Gyre under changing wind and ice conditions.
  • Arctic meets Antarctic — Two talks aimed at bridging the communities studying the Antarctic and Arctic Oceans.

Monday

Please plan for 20 minutes talks, followed by 10 minutes of questions

08:30 - 09:00 | Breakfast
09:00 - 09:30 | James Morison — AO, AOO, Arctic Ocean Surprises?
09:30 - 10:00 | Qiang Wang — Emerging regime shift in Arctic Ocean circulation
10:00 - 10:30 | Zoë Koenig — Characteristics of the oceanic Transpolar Drift and its influence on the water column in the central Arctic Ocean
10:30 - 11:00 | Coffee Break
11:00 - 11:30 | Francis Poulin — Instability in the Beaufort Gyre
11:30 - 12:00 | Anna Lina Sjur — Nonlinear dynamics of Arctic Ocean circulation
12:00 - 12:30 | Discussion
12:30 - 14:00 | Lunch Break
14:00 - 15:00 | —TBD
15:00 - 15:30 | Stephanie Waterman — Filling in the Map: Understanding Arctic Ocean mixing rates, mechanisms, space-time variability and decadal-scale trends from ocean observations
15:30 - 16:00 | Coffee Break
16:00 - 16:30 | Johan Nilsson — Is the surface Arctic Ocean circulation topographically steered by the deep currents?
16:30 - 17:00 | Michael Spall — Upside-Down Bathymetry: Ice Thickness as a Constraint on Arctic Circulation
17:00 - 17:30 | Pål Erik Isachsen — Wave topography interactions in the North and the South
17:30 - 18:00 | Discussion
 
Tuesday

Please plan for 20 minutes talks, followed by 10 minutes of questions

08:30 - 09:00 | Breakfast
09:00 - 09:30 | Rodrigo Caballero — Sea ice bifurcations and atmospheric noise: a simple stochastic model
09:30 - 10:00 | Romain Caneill — On the solid turbulence of sea ice dynamics
10:00 - 10:30 | David Ferreira — Impact of ocean heat transport on sea ice changes
10:30 - 11:00 | Coffee Break
11:00 - 11:30 | Mukund Gupta — Ocean–sea ice coupling at the floe scale: melt, dynamics, and energetics
11:30 - 12:00 | Jacqueline Boutin — Remote sensing of sea surface salinity in the Arctic Ocean: SMOS and CryoRad missions
12:00 - 12:30 | Discussion
12:30 - 14:00 | Lunch Break
14:00 - 15:00 | Casimir de Lavergne — Mixing and upwelling in the Southern Ocean: on the fate of subsurface ocean warmth
15:00 - 15:30 | John Marshall — Natural Decadal Variability of Antarctic Sea Ice Modulated by Mesoscale Ocean Memory
15:30 - 16:00 | Coffee Break
16:00 - 16:30 | Thomas Haine — Thoughts on Arctic Overturning and Horizontal Circulation
16:30 - 17:00 | Marius Årthun — Atlantification drives recent strengthening of the Arctic overturning circulation
17:00 - 17:30 | Jakob Dörr — Lagrangian decomposition of the Arctic overturning circulation
17:30 - 18:00 | Discussion

Wednesday

Please plan for 20 minutes talks, followed by 10 minutes of questions

08:30 - 09:00 | Breakfast
09:00 - 09:30 | Isabela Le Bras — Constraining the Arctic freshwater budget from observations
09:30 - 10:00 | Laura de Steur — Observed sustained increase in freshwater export through Fram Strait since 2020
10:00 - 10:30 | Marta Faulkner — Insights into Arctic freshwater dynamics from the potential vorticity budget of an idealized model
10:30 - 11:00 | Coffee Break
11:00 - 11:30 | Kjetil Våge — Wintertime shipboard measurements from the marginal ice zone in the western Nordic Seas
11:30 - 12:00 | Discussion
12:00 - 13:30 | Lunch Break
13:30 - 14:00 | Mary-Louise Timmermans — Transitions in Beaufort Gyre freshwater and heat content from 2003 to 2025 in response to changing wind forcing and sea ice conditions
14:00 - 14:30 | Florian Sevellec — Maintenance of the ocean vertical thermohaline structure by the mesoscale turbulence in the Beaufort Gyre
14:30 - 15:00 | Jennifer Kosty — Dynamic modes and energy pathways in the changing Beaufort Gyre
15:00 - 15:30 | Coffee Break
15:30 - 16:00 | Gianluca Meneghello — The disequilibrated Beaufort Gyre: constraining variability under current and future sea-ice scenarios
16:00 - 16:30 | Discussion and concluding remarks

 

Mis à jour le 18/11/2025