Sea Ice Modelling

Group Leader: 
Einar Örn Ólason


About us

We work on the physics of sea ice and its role in the polar climate system, combining numerical model developments and satellite remote sensing

Research Objectives

We focus on the following research topics:

• To develop the new neXt generation Sea Ice Model, neXtSIM.

This new model includes the Maxwell elasto brittle (MEB) rheology to simulate sea ice dynamics and an adapted code to simulate sea ice thermodynamics including the feedbacks between thermodynamical and dynamical processes.

• To develop and implement a new module into neXtSIM that resolves waves-ice interactions in the Marginal Ice Zone.

• To provide daily sea-ice forecasts for the entire Arctic region using the neXtSIM-F forecast system based on the new neXtSIM Lagrangian sea ice model.

• To understand why sea ice behaves as it does and caracterize the scaling properties of the underlying physics responsible of its dynamical behavior using both model and observations.

• To assess and quantify the role played by the sea ice cover motion and fracturing in affecting the upper ocean mixing, and regulating the primary production in the Arctic Ocean.

• To explain the reasons for the Arctic sea ice cover reduction observed over the last few decades, in a context of polar amplification and climate change.


Name Area of Expertise
Anton Korosov
computer science
remote sensing
sea ice
Einar Örn Ólason sea ice
Guillaume Boutin
sea ice
Heather Christine Regan
sea ice
Jonathan Winfield Rheinlænder
Pierre Rampal
sea ice
Sukun Cheng data assimilation
Timothy Williams
sea ice


Gratulerer med dagen, Fridtjof Nansen! His research inspires sea ice modelling today

10.10.2020 - 10:00 Guillaume Boutin
159 years ago today, a legend was born: Fridtjof Nansen, a man who was not afraid to risk his life to prove that sea ice in the Arctic Ocean is drifting. His...

Young Research Talent grant at the Nansen Center

11.12.2016 - 23:20 Pierre Rampal
Dr. Pierre Rampal, researcher at NERSC and leader of the sea ice modelling group, has just been granted the prestigious Young Research Talent ...

SWARP User Workshop 28th - 29th Sept.

11.08.2016 - 09:39 Laurent Bertino
NERSC is hosting a two-days training workshop in the framework of the European SWARP project, on waves and ice forecasting in the Marginal Ice Zone. https://...

Workshop on Computational Meshes and Applications on May 23.

10.05.2016 - 14:46 Lasse Pettersson
Bergen University College and Nansen Environmental and Remote Sensing Center are jointly organizing a “Workshop on Computational Meshes and Applications” at...

New sea ice forecasts for the Barents and Kara Seas

28.10.2015 - 14:35 Pierre Rampal
The Nansen Center is pleased to announce that a new sea ice forecasting platform called neXtSIM-F is now up and running for the Barents and Kara Seas....

NFR-funded research project started on modeling waves-sea ice interactions

05.01.2015 - 16:34 Pierre Rampal
Arctic sunset: Credit: V. Dansereau, 2010.NERSC's new project neXtWIM: Waves in the next geration sea ice model (2015-2018) has just been funded by the...

Pierre Rampal laureate of "le prix de La Recherche"

26.10.2012 - 11:13 Laurent Bertino
Dr. Pierre Rampal receives the "le Prix de La Recherche" in Paris.Nansen Center scientist Dr. Pierre Rampal has received on Tuesday 23rd October in Paris "le...