Annual DRAKKAR Meeting 2007

INTRODUCTION

The DRAKKAR project has set up a hierarchy of ocean model configurations, the aim of which is to serve the scientific objectives of the participating research groups (DRAKKAR science plan, at http://www.ifremer.fr/lpo/drakkar/index.htm).

The objectives of this DRAKKAR meeting are:

i) to review the technical progresses achieved on this hierarchy of models and the scientific results obtained,

ii) to analyse and update the appropriateness of the present hierarchy of models for the scientific objectives of the various groups,

iii) to establish a coordinated plan for the development/evolution of the hierarchy of models and the experiments to carry out for the coming year.

OVERVIEW OF MEETING SESSIONS

The 2007 January meeting is therefore organized in 3 sessions:

1 - Report Session
This session comprises a series of reports from different groups on scientific and technical advancements relative to the various model configurations.

2- Results session

This session will discuss the interannual experiments, with a focus on the comparison between the 2 global 1/4° simulations, G70 and KAB001. An important objective of this session is to identify strong and weak points of these simulations in order to identify where improvements are required (weak points), and where publications can be envisaged  (strong points).

3 - Planning Session

This session is dedicated to the definition of the work plan for 2007. Two major axes will be discussed: the continuation of global simulations and the development of the high resolution applications (the 1/12° North Atlantic model and the AGRIF applications). The session will start with a brief review of the scientific objectives of the various groups. It will identify developments to be carried out in 2007, and will establish a coordinated development and simulations plan for 2007.

Thursday, 25 January 2007

INTRODUCTION

8:30 - 9:00 : Welcome
Welcome, coffee and cookies
8:50: Meeting introduction (Bernard Barnier)

REPORT SESSION (From 9:00 to 10:30)
9:00 - 10:30 : Overview of activities of the Drakkar Project Team
Development of NEMO (20 mn, Claude Talandier)

Group activity reports: Reports should give an overview (summary) of DRAKKAR related activities done in 2006. Presentations should be short (10 mn).
- Grenoble/Brest/Paris (Bernard Barnier)
- IFM-Geomar Kiel (Arne Biastoch)
- SIO-Moscow (Sergei Gulev) - NOC-Southampton (Andrew Coward) - University of Reading (Greg Smith)

ORCA025 list of experiments (10 mn, Jean Marc Molines)

10:30-11:00  Coffee break

RESULTS SESSION (From 11:00 to 17:00)
A series of presentations will mainly address the validation/comparison of ORCA025 experiments carried out in Kiel (KAB001) and Grenoble (G70), using observations and other DRAKKAR configurations ORCA05, ORCA1 and ORCA2 configuration.
11:00 - 11:30: Forcing
- Comparing CORE and Drakkar Forcing Set #3 (15 min, Laurent Brodeau) - Correction of the Katabatic winds in Antarctica (15 min, Pierre Mathiot)
11:30 - 15:00 Global Ocean Simulations
- Comparative analysis of the monitoring of DRAKKAR global simulations  (30 mn, Jean Marc Molines & Bernard Barnier)
- The Kiel runs KAB001 and KAB002 in comparison with G70: MOC and related issues (40 mn Arne Biastoch)
- Evaluation of 47yr simulations of ORCA1 using a generalized observation operator (20 min, Greg Smith)
13:00-14:15  Lunch Break Buffet at LEGI
- Validation of simulation ORCA025-G70 with collocated satellite and in-situ observations (45 mn Thierry Penduff & Mélanie Juza)
15:00 - 16:05: Regional Studies
- Equatorial Atlantic (15 min, Sabine Hüttl)
- Equatorial Pacific (15 min, Joke Lübbecke)
- Parameterization of internal tides' effect on water masses in the Indonesian ThroughFlow (20 min, Ariane Koch-larrouy)
16:05-16:30 - Coffee break
16:30 - 16:40: Regional Studies (continues)
Preliminary results with a regional Arctic North Atlantic model configuration extracted from the ORCA05 global version (10 min, Christophe Herbaut) 16:40 - 17:00 Coupled models
Current state of ECHAM5/NEMO coupled model (20min, Wonsun Park)

PLANING SESSION (introduction)
This session is dedicated to the definition of the work plan for 2007.

17:05-18:30: Presentations plans from each group (<10 mn each)
Every group will have the opportunity to present very briefly  their projects for 2007.
In addition to the Project Team Members (LEGI/LPO/LOCEAN, IFM-Geomar, NOC, Reading), In particular we invite associate scientists participating to the meeting (Paul Meyrs, You Lulu, James Orr, G. Roullet, Didier Swingedouw, ...) to present a few slides
18:30  End

Friday, 26 January, 2007

8:45 - 9:00 : Welcome
Welcome, coffee and cookies

PLANING SESSION (9:00 - 13:00)

9:00 - 10:00 : Global Configuration
Define the planning for global model simulations, including the new ORCA1 configuration developed in the UK, and draft the definition of the coordinated work plan for 2007. This will include work plan with regional configurations which aim at improving the global model (such as the Indonesian through flow configuration or the Antarctic configurations).
10:00 -10:50 High resolution configurations
- Results from the Mercator North Atlantic 1/12° NATL12 (20 mn, Bernard Barnier)
- Plans with AGRIF application in the NE Atlantic (10 mn, Virginie Thierry)
- Plans with NATL12 (10 mn, Virginie Thierry)
10:50-11:10  Coffee break
11:10-15:30 General Discussion
General discussion on high resolution configuration and raft of the 2007 coordinated work plan for high resolution configurations. Important issues are:
- Hindcast and sensitivity experiments with ORCA025 and NATL12 to carry out in 2007
- Working together:
Common data format
Data exchange
Joint analysis of experiments
Update and distribution of Drakkar model configurations
Computer resources
Wiki site
13h00 - 14h:15 – Lunch Break at Café NoName
General discussion continues
15:30 - 16:30: FP7
Discussion of the FP7 THC Call and of Marine Core Service Call
- Report from the London Meeting (THC call)
16:00-16:30 - Coffee break
17:00 - 18:00 ... : General Discussion (continues) and conclusions
Everything we did not do yet. Set date of the next meeting

18:00 End of meeting

Saturday, 27 January 2007

Morning (start at 9:00)
Snowshoe-hike/cross-country ski who'll stay overnight in Grenoble.
We had snow, sun, wind and cold weather (-10°C), but we could manage without snowshoes.
Iit was fun and beautifull (as usual), although the picnic was short.
See pictures from Albanne
Picture No1 Picture No2 Picture No3 Picture No4
Picture No5 Picture No6 Picture No7 Picture No8
Picture No9 Picture No10 Picture No11 Picture No12
Restaurant at night was a vegie chosen by Bernard to please Greg.


List of participants for the 2 days (39)

IFM Kiel (5): Arne Biastoch, Joachim Dengg, Sabine Huettl, Joke Luebbecke, Wonsun Park
SIO Moscou (1): Sergei Gulev
LPO Brest (7): Virginie Thierry, Sébastien Theetten, Eric de Boisséson, Bruno Levier, Catherine Guivarc’h, Guillaume Roullet,  Arnaud LeBoyer
LOCEAN Paris (9): Rashid Benshila, Ariane Koch-Larrouy, Gurvan Madec, Sebastien Masson, Claude Talandier, Mathieu Leclerc, Marie-Nöelle Houssais, Christophe Herbaut, Charles Deltel.
NOC Southampton (3): Beverly de Cuevas, Andrew Coward, Adrian New
University of Reading (1): Greg Smith
LEGI Grenoble (9): Bernard Barnier, Laurent Brodeau, Gaëlle Hervieux, Mélanie Juza, Albanne Lecointre, Pierre Mathiot, Jean Marc Molines, Thierry Penduff, Achim Wirth.
LSCE Orsay (2): James Orr, Didier Swingedouw
BIO Dathmouth (1): Youyu Lu
Univ. of Alberta (1): Paul Myers