| Time |  | Title |  | Authors | 
| DAY 1 |  |  |  |  | 
| 9:00 |  | Welcome and logistics, Goals, Introduction |  | Leif Toudal Pedersen,  Lars-Anders Breivik, Tom  Carrieres, Frank Kauker | 
| 9:30 |  | Validation of a regional coupled ocean/sea ice model in Nares Strait |  | Till Rasmussen | 
| 10:00 |  | Development of operational coupled sea ice and ocean model at DMI |  | Stiig Wilkenskjeld | 
| 10:15 |  | Canceled |  |  | 
| 10:45 |  | Break |  |  | 
| 11:15 |  | Parameter sensitivity to assimilation of different data in a sea-ice model using the Ensemble Kalman Filter |  | Christof Koenig Beatty | 
| 11:45 |  | Assimilation of  sea ice observations in a coupled ocean sea ice state estimate of the Labrador Sea using the adjoint method |  | Ian Fenty | 
| 12:15 |  | Lunch |  |  | 
| 13:30 |  | Discussion: Is there an optimal ice model for all purposes or classes of models that are more appropriate to ice services or climate modeling. How close are we to having a linearized version of a coupled ice-ocean model? |  | Moderator: Tom Carrieres | 
| 14:30 |  | Assimilation of observed and unobserved ocean and sea ice |  | Lars Axell | 
| 15:00 |  | Break |  |  | 
| 15:30 |  | Variational assimilation of hydrographic and ice concentration observations into a coupled ocean sea ice model of the Arctic |  | Thomas Kaminski | 
| 15:45 |  | Quantitative Network Design |  | Thomas Kaminski | 
| 16:00 |  | Adjoint analysis of the summer 2007 low in Arctic sea-ice area |  | Frank Kauker | 
| 16:30 |  | Discussion:  Strengths and weaknesses of DA techniques and how each can benefit from the other. |  | Moderator: Mark Buehner | 
| 19:30 |  | Workshop Dinner at the Copenhagen Planetarium |  |  | 
| DAY 2 |  |  |  |  | 
| 9:00 |  | An overview of some Environment Canada sea ice data assimilation projects |  | Tom Carrieres | 
| 9:30 |  | Sea ice thickness categories and their error covariances for assimilation with a three-dimensional variational data assimilation system |  | Alain Caya | 
| 10:00 |  | Towards the use of high-resolution remote sensing data in a three-dimensional variational analysis system: A collaboration with OSI-SAF |  | Mark Buehner | 
| 10:30 |  | Break |  |  | 
| 11:00 |  | Assessment of the ECCO2 regional optimized solution in the Arctic |  | An T. Nguyen | 
| 11:30 |  | Discussion: Background error estimation, use of observations, etc. What are main      sources of sea-ice background error (i.e. 12-24h forecasts):atmospheric forcing error? ocean forcing error? sciences of ice model? uncertain parameters (drag coeff., yield curve)? What fraction of the error can be explained by: ice displacement errors? melt/growth errors? |  | Moderator: Lars-Anders Breivik | 
| 12:30 |  | Lunch |  |  | 
| 13:30 |  | The joint NSIDC and EUMETSAT sea ice re-analysis |  | Rasmus Tonboe | 
| 14:00 |  | The DAMOCLES project and beyond - recent advances in oceanographic observations in arctic regions and the legacy of IPY oceanography |  | Jean Claude Gascard | 
| 14:30 |  | Measurements of Arctic sea ice thickness with upward-looking sonars in 2004 and 2007 |  | Joao Rodrigues | 
| 15:00 |  | Break |  |  | 
| 15:30 |  | OSI SAF SEA Ice products and their use in ocean-ice-model data assimilation |  | Lars-Anders Breivik | 
| 16:00 |  | The met.no ice chart archive |  | Nick Hughes | 
| 16:30 |  | Discussion: can models and data assimilations systems improve the utility of observations and re-analyses |  | Moderator: Leif Toudal Pedersen | 
| DAY 3 |  |  |  |  | 
| 9:00 |  | Arctic Wide Ice Motion Estimation from Operational Satellite Imagery: improving the time span and accuracy of low resolution products |  | Thomas Lavergne | 
| 9:30 |  | High resolution Arctic Sea Ice drift |  | Leif Toudal Pedersen | 
| 10:00 |  | Satellite remote sensing of Arctic surface parameters at University of Bremen |  | Christian Melsheimer | 
| 10:30 |  | Break |  |  | 
| 11:00 |  | Discussion: Intro by Thomas Lavergne - Satellite derived ice drift is NOT velocity. Operational sources of sea ice drift and thickness, error estimation and representativeness |  | Moderator: Thomas Lavergne | 
| 12:00 |  | Planning: collaboration, future meetings, etc. |  |  | 
| 12:30 |  | Lunch, meeting end |  |  | 
| 13:30 |  | IICWG IPY Project coordination |  |  |