Workshop on the DRAKKAR global ocean model at 1/4° resolution

IFREMER -Brest, September 25-27th, 2007

Agenda

The first day of the workshop (tuesday afternoon and wednesday morning) is open and consists in a series of talks organized in four sessions. Most talks will be quite informal, about research in progress. Speakers should ensure that their talk is short enough, in order to leave ample time for questions and discussion in the time alloted (for example a 5 or 10mn talk with 5 mn discussion).

Tuesday, September 25^th (Salon Océan, IFREMER)

11:30 am: Welcome, lunch at IFREMER cafeteria

Session 1: Global and tropical oceans

14:00-14:10 A.M. Treguier: Global experiments in the DRAKKAR group: a short history ( ppt )

14:10-14:25 J.M. Molines: The global ORCA025-G70 configuration ( pdf )

14:25-14:45 L. Brodeau, B. Barnier: Forcings for the global 1/4° DRAKKAR runs ( pdf )

14:45-15:00 Gilles Garric: The global 1/4° at Mercator Océan : operational system and plan for reanalyses. ( ppt )

15:00-15:15 Alix Lombard: Regional variability of sea level change using the global 1/4° Mercator and Drakkar runs. ( ppt )

15:15-15:30 Karina von Shuckmann, Fabienne Gaillard: variability of global temperature and salinity - ARGO and ORCA025 ( ppt )

15:30-15:50 Thierry Penduff, Melanie Juza: Global skill of the DRAKKAR models measured by altimetry and ARGO floats. ( ppt )

-------------- discussion and Coffee break

16:25-16:40 Gabriella Athie: Tropical instability waves in the Atlantic in ORCA025-G70 and NATL4. ( ppt )

16:40-16:50 A. Melet: Regional zoom of ORCA025 on the Salomon Sea, with 4 open boundaries ( ppt )

16:50-17:00 Charles Deltel: 1/4° configuration for the Indian Ocean ( ppt )

Session 2 : South Atlantic and Southern Ocean

17:00 - 17:20 Arne Biastoch: Dynamics in the Agulhas system and variability of interoceanic exchange ( pps )

17:20 - 17:40 Julien le Sommer: Dynamics of the eddy-driven Zapiola anticyclone in the DRAKKAR simulations ( pdf )

17:40-18:30 General discussion

7:30 pm: Dinner (“Latitude Crêpes”)

Wednesday, september 26th, Salon Océan (IFREMER)

8:45am: welcome

Session 3: North Atlantic

9:00 – 9:10 Arne Biastoch: Studies of the MOC with global DRAKKAR configurations ( pps )

9:10 - 9:40 Markus Scheinert: Freshwater balance in the Arctic and the Subpolar gyre, ( ppt )
9:40 - 9:55 Virgine Thierry: Mode waters in the north-east Atlantic,
9:55 -10:10 Camille Lique: variability of exports from the Arctic ( ppt )

10:10 – 10:25 Sylvain Michel: variability of ORCA025-G70 in the Bay of Biscay ( pdf )

10:25 - 10:35 Thierry Huck: plans to use ORCA05 for the study of the north Atlantic variability ( ppt )

10:35-11: 00 discussion and coffee break

Session 4 : Assimilation, Forecast, AGRIF...

11:00 - 11:15 Gregory Smith: Reconstructing MOC variability using a physically-based data ( pdf )

assimilation method

11:15 - 11:30 Yann Drillet: Ocean ensemble forecasts for the North Atlantic. ( ppt )
11:30 - 11:45 Florian Lemarie: Implementation and use of AGRIF in NEMO ( pdf )

11:45 - 12:00 Steve Alderson: using AGRIF in NEMO ( ppt )

12:00 - 13:00 Future plans, open discussion

DRAKKAR team meeting

Wednesday, september 26th, afternoon: Salon Océan (IFREMER)

and thursday 27^th morning (LPO meeting room).

September 26th, 2:6pm

- review of existing ORCA025 experiments, including short sensitivity experiments

- Discussion of publication plans for the ORCA025 experiments

- Exchange of information about other model configurations: ORCA12, NATL12 ( Presentation: Yann Drillet ppt )

- Discussion of joint projects and funding opportunities

September 27th, 9:13pm

- Sharing and exchanging model results, post processing tools: technical and practical issues

- Strategy for the next ORCA025 experiments: details of forcings and parameterizations

• Other DRAKKAR developments, perspectives for the next Grenoble meeting.

List of participants for the seminars (open)