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Meetings related to the CliC Sea Ice and Climate Modeling Forum.

2019 SIMIP workshop at the IGS International Symposium on Sea Ice at the Interface, Winnipeg, Canada

A half-day SIMIP workshop will be held on, Sunday, August 18, 2019, before IGS, from 9 AM to 12:30 PM, in the GatewayRoom at the Fort Garry Hotel, to discuss ongoing SIMIP analysis in the target groups and possible collaborations on papers.

Note that for inclusion in the AR6 report, papers need to be accepted by September 30th 2020. To be included in the 2nd draft of the AR6 report, papers need to be submitted by Dec 31 2019. Please email all your submitted and accepted papers of possible relevance to AR6 to as soon as possible. Confidentiality is ensured. Please also email Dirk Notz directly about any AR6 relevant sea ice results you expect to be published by the 30th of September, so he can make space for those results while writing the sea ice section.

Agenda for 2019 SIMIP workshop, Sunday, August 18, 2019, 9 AM to 12:30 PM, in the GatewayRoom at the Fort Garry Hotel.

9:00 am - 9:15 am: Opening remarks
9:15 am - 10:40 am: Brief presentations on ongoing analyses (10 minute each) and targeted activities (5 minutes each) and Discussions
10:40-11:00: 20 minute break
11:00 am to 11:50am: Brief presentations on new observational data sets & best practices (10 minutes each)
11:50pm-12:30pm: Open discussions on issues encountered/ways forward/changes to future SIMIP data request/thoughts on dedicated SIMIP experiments/etc
12:30: Adjourn
Option for joint no-host lunch at local restaurant

Information on remote access to our SIMIP meeting in Winnipeg

The meeting will be 9am - 12:30 pm local time in Winnipeg, which is 2pm-5:30pm UTC.

Meeting Room Name: SIMIP Meeting Winnipeg             
Meeting Room Number: 97976226

In order to join the meeting you can select one of the alternatives:

1. With your Browser under Windows, MacOS, GNU/Linux: https://conf.dfn.de/webapp/conference/97976226

2. With a SIP/H.323 room system or SIP/H.323 software client:
    H.323: 004910097976226

3. With a telephone (audio only): Call 0049 30 200 97976226

4. Via Skype for Business:

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 Session 12.1, Sea ice in CMIP6 models, Monday, August 19th, 9:30am-12:10pm Selkirk Ballroom

We also have a dedicated SIMIP session at the IGS Sea ice meeting in Winnipeg (Session 12.1 Sea Ice in CMIP6 models), where we hope you will submit your CMIP6 sea ice results (https://www.igsoc.org/symposia/2019/winnipeg/)

Chairs: Alexandra Jahn, University of Colorado, USA; Marika Holland, University of Colorado, USA; Elizabeth Hunke, Los Alamos National Laboratory, USA; François Massonnet, Université catholique de Louvain, Louvain-la-Neuve, Belgium; Dirk Notz, MPI-M, Hamburg, Germany; Julienne Stroeve, University of Manitoba, Canada / University College London, UK / NSIDC, USA; Bruno Tremblay, McGill University, Montreal, Canada; Martin Vancoppenolle, Sorbonne Université, CNRS, Paris, France

We invite sea ice modeling contributions, in particular ones that use large-scale model simulations and address the questions formulated within the Coupled Model Intercomparison Project 6 (CMIP6) – endorsed Sea-Ice Model Intercomparison Project (SIMIP). These questions include: 1) What are the physical processes that affect sea ice changes? 2) Why do model simulations differ from each other? 3) Why do model simulations differ from the observational record? 4) What can we do to reduce these differences to obtain a better understanding and achieve better projections? Topics of interest include but are not limited to, model evaluation, analyses, intercomparisons, or other sea-ice related science carried out with Earth System Models or Climate Models, or with other methods that help advance the understanding of the output from these large-scale models in relationship to the real world.

Large-Scale Sea-Ice Simulations Workshop

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 (http://www.reading.ac.uk/venue-reading/Sleep/vr-cedars-hotel.aspx), 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: http://www.ibis.com/gb/hotel-5431-ibis-reading-centre/index.shtml

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




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


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


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.