September 26th, University of Reading, UK
Department of Meteorology, Room 1L61

This one-day workshop brought together users and developers of sea-ice models to start a joint effort for improving sea-ice models. We will coordinate the analysis of sea-ice biases in CMIP5 models, determine the most pressing needs for model development, identify the most helpful observational data, and compile a list of the most useful sea ice variables to be saved for CMIP6. The workshop is the first in a series of planned activities from the Sea ice and Climate Modeling Forum, which is a WCRP-CliC initiative that aims at improving and better understanding large-scale sea-ice simulations by coordinating a joint effort of the international sea ice modeling community. Following a few short plenary talks, the workshop will consist of breakout group and discussion sessions.

Download the Report

For more information, please contact the meeting organizers:

Alexandra Jahn, NCAR, USA
Dirk Notz, MPI for Meteorology, Germany
Daniel Feltham, University of Reading, UK


The full-day workshop will begin with a few over-view talks including an introduction to the new CliC Sea Ice and Climate Modeling Forum. This will be followed by breakouts and group discussions, etc.

The meeting will take place at the University of Reading, UK, Room 1L61 in the Department of Meteorology

Download University of Reading Map

Download Agenda

Time Agenda Item
8:45 – 9:00 Coffee and registration
9:00 – 9:10 Welcome and overview of CliC Sea Ice and Climate Modeling Forum objective
9:10 – 10:40 Topic: Sea ice biases in CMIP5 models (1.5h)
9:10 – 9:30 — Overview talk (Paul Henzel)
9:30 – 10:40 — Discussion
10:40 – 11:00 Coffee break
11:00 – 12:30 Topic: Sea ice model development needs (1.5h)
11:00 – 11:20 — Overview talk (Martin Vancoppenolle)
11:20 – 12:30 — Discussion
12:30 – 13:30 Group photo followed by catered lunch
13:30 – 15:00 Topic: CMIP6 planning (1.5 h)
13:30 – 13:45 — Overview talk (TBD/Alex and Dirk)
13:45 – 15:00 — Discussion
15:00 – 15:30 Coffee break
15:30 – 16:30 Topic: Sea ice observations (1h)
15:30 – 15:45 — Overview talk (TBD/Alex and Dirk)
15:45 – 16:30 — Discussion
16:30 – 17:00 Workshop summary/final discussion
17:00 Adjourn
18:30 No-host workshop dinner
Local Information
  • This workshop will be a full-day workshop on Sept. 26th 2014, at the University of Reading, Room 1L61 in the Department of Meteorology.
  • We are organizing a free bus transfer on Sept. 25th from the sea ice workshop at Chicheley Hall to Reading, please reserve your seat by Sept. 15th under “Practical information needed” above.
  • Local hotel information: We have arranged a hotel room block at the Cedars Hotel on Campus (, for £66.90 per room per night with breakfast, free wifi, free parking, and VAT included. This rate is valid until all rooms are booked or August 31st 2014, whichever comes earlier, so please book early by emailing with the group reference 52295 and your arrival and departure dates.
  • If you need an invitation letter for a visa application, etc. please contact
    Daniel Feltham, University of Reading, UK.

PLEASE NOTE: The Cedars Hotel is not fully booked. If you still do not have a room, we recommend the Ibis Hotel in Reading:

Download University of Reading Map

This workshop is the final one in a series of related workshops around that time in central Europe, including

16+17 Sep: 6th IICWG/ICE-ARC workshop on sea ice modelling and data assimilation, Toulouse

18+19 Sep: International Sea ice concentration and thickness inter-comparison and evaluation workshop, Hamburg

22+23 Sep: Arctic sea ice reduction: the evidence, models, and global impacts, Royal Society, London

24+25 Sep: Arctic sea ice reduction: the evidence, models, and global impacts – further discussion,  The Royal Society at Chicheley Hall

Participant Affiliation, Country
Aksenov, Yevgeny National Oceanography Centre, UK
Chevallier, Matthieu CNRM, Météo-France, France
Day, Jonathan University of Reading, UK
Debernard, Jens Boldingh MET Norway, Norway
Du, Ling Ocean University of China, China
Feltham, Daniel (Danny) University of Reading, UK
Ferreira, David University of Reading, Uk
Flocco, Daniela CPOM – Reading University, UK
Hallberg, Robert NOAA / GFDL, USA
Heorton, Harold (Harry) University of Reading Department of Metorology, UK
Hawkins, Ed University of Reading, UK
Hezel, Paul University of Bergen, Norway
Holland, Paul British Antarctic Survey, UK
Hughes, Nicholas Norwegian Ice Service, Norway
Jahn, Alexandra University of Colorado, USA
Keen, Ann Met Office Hadley Centre, UK
Liston, Glen Colorado State University, USA
Maslowski, Wieslaw Naval Postgraduate School, USA
Melia, Nathanael University of Reading, England
Notz, Dirk MPI for Meteorology, Germany
Olonscheck, Dirk Max Planck Institute for Meteorology, Hamburg
Rae, Jamie Met Office Hadley Centre, UK
Rampal, Pierre Nansen Center, Norway
Rees Jones, David University of Oxford, United Kingdom
Ridley, Jeff Met Office Hadley Centre, UK
Schmidt, Gavin NASA-GISS, New York, USA
Schroeder, David University of Reading, Berkshire
Stroeve, Julienne NSIDC, University of Colorado, USA
Su, Jie (Jenny) Ocean University of China, China
Tietsche, Steffen European Centre for Medium-Range Weather Forecasts, UK
Tremblay, Bruno McGill University, Canada
Tsamados, Michel CPOM, University of Reading, United Kingdom
Vancoppenolle, Martin Centre National de la Recherche Scientifique, France
Wang, Zhaomin Nanjing University of Information Science and Technology, China
Wells, Andrew University of Oxford, UK
West, Alex Met Office Hadley Centre, United Kingdom

Participant list is updated weekly. If your name is not on the list and you believe you have registered, please contact Erik at the CliC Office.