11th International Workshop on Sea Ice Modelling, Assimilation, Observations, Predictions and Verification

21-22-23 March 2023 hosted by the Norwegian Meteorological Institute, in Oslo, Norway

A joint workshop of the International Ice Charting Working Group (IICWG), the Norwegian Meteorological Institute, the EUMETSAT Ocean and Satellite Application Facility (OSI SAF), the European Space Agency Climate Change Initiative for Sea Ice (ESA CCI), and the Sea Ice Retrieval and Data Assimilation in Norway (SIRANO).

We thank the Research Council of Norway for their support.


The workshop, which is the 11th in a series organized with the International Ice Charting Working Group (IICWG), aims at improving international capabilities to perform sea ice prediction on timescales ranging from hours to a season. The aim of the workshop is to discuss cross-cutting issues in sea ice modelling, assimilation and observations and how deficiencies of current systems can be diagnosed and addressed more efficiently. 

General topics (sessions) include: 

  • Sea ice data assimilation (methods and results) 
  • Sea ice observations and uncertainties 
  • Sea ice model parameterizations and coupling to ocean and atmosphere models 
  • Verification approaches for sea ice analyses and forecasts
  • Recent research to sea ice operation transfer—Automated prediction systems


The workshop is organized around keynote and contributed presentations with ample time for discussion. All attendees are encouraged to make a contribution.

Scientific Programme

Abstract submission closed on 1st November. The programme and accepted abstracts are here.


Registrations for online attendance to the workshop will close Thursday 16th March midnight.
The online registration google-form above might not work from your country. If (and only if) this is the case for you, please send us your First name, Last name, and Institution by email to iicwg-da-11@met.no

IN-PERSON ATTENDANCE: We are unfortunately at capacity (~100 persons) for in-person attendance already. We invite you to register for online attendance.

Organizing Committee

  • Thomas Lavergne (Met Norway)
  • Gilles Garric (MOi/CMEMS)
  • Jean-François Lemieux (ECCC)
  • Lynn Pogson (CIS/ IICWG-DAWG)
  • Frank Kauker (OASys/AWI)
  • Laurent Bertino (NERSC/CMEMS)
  • Richard Allard (NRL)
  • Leif Toudal Pedersen (eolab.dk)
  • Lars-Anders Breivik (Met Norway/IICWG-DAWG).

Local organizing Committee at MET Norway

  • Thomas Lavergne
  • Marina Durán Moro
  • Arne Melsom
  • Henrik Aas
  • Edel Rikardsen
  • Martina Idžanović
  • Signe Aaboe

Useful information for participants

Venue: Forskningsparken - Oslo Science Park, Gaustadalléen 21.
See our logistics page.

Lunch: Lunch will be provided each day, at the workshop venue.

Contact: For questions about the workshop please write to: iicwg-da-11@met.no