Coupling dynamics, physics and chemistry for atmospheric pollution studies
Organised jointly by CERFACS and FUJITSUToulouse, France, October, 19-20,2000
Objectives Organisers Agenda Inscriptions Travels and Housing
The Workshop Report (.rtf file, 1010 kB)
Objectives
Coupled General Circulation Models (CGCMs) of the sea-ice-ocean-atmosphere-biosphere system are the most comprehensive tools used today to study the interactions between the different components of the global climate system, understand its natural variability and predict its evolution. Great care must be given to the computing and technical aspects of the complex and CPU-intensive simulations based on such CGCMs.Since 1991, the Climate Modelling and Global Change Team of CERFACS develops the OASIS software, a modular and flexible tool used to couple ocean and atmosphere GCMs in a simple and efficient way. The first workshop on Technical Aspects of Ocean-Atmosphere Coupling hosted by CERFACS and Fujitsu in Toulouse, France, in September 1997 showed that the OASIS coupler is used internationally in many climate centres to perform ocean-atmosphere coupled simulations for many different types of studies (global change scenarios, natural climate variability studies, paleoclimatic simulations, seasonal forecasting, etc.). The recommendations that emerged from the workshop drove the OASIS developments of the last 3 years: maintenance and development of different communication techniques ensuring software portability, realisation of a coupled benchmark in collaboration with the Institut Paul-Simon Laplace (IPSL), improvement of Oasis environment, etc.
The objective of the forthcoming workshop is to bring together an international group of climate modelling scientists and engineers to assess the future needs in sea-ice-ocean-atmosphere-biosphere coupling. The questions that we want to address are the following:
In the next 5 years,
What type of models will we want to couple (atmosphere, ocean, carbon, biosphere, chemistry, ...)?
What type of physical interface will we want between these models and where should they be located (bulk formulae to calculate sub-grid flux boundary conditions, ...)?
What will be the coupling characteristics (size of the coupling fields, coupling frequency, ...)? May these characteristics evolve during a coupling?
Will we want to perform heterogeneous coupling (different models running on different machines)?
What type of machines will the coupled simulations be running on?
Answering these different questions will then allow us to identify the preferred short-/medium- and long- term development axes for OASIS (improved and added interpolation functionalities, parallelisation of the coupler, parallelisation of the communication between the coupler and the models, etc.).
Venues: CERFACS Conference room
42 Avenue Gaspard Coriolis,
31057 Toulouse Cedex 1, France
France
Organisers: FUJITSU / FECIT & CERFACS
Organising committees:
Chair: Naoya TAMURA (FECIT director) & Jean-Claude ANDRE (CERFACS director)
Scientific Committee:Sophie VALCKE, Laurent TERRAY (CERFACS)& Jean LATOUR (FUJITSU).
Local arrangements:
Véronique Robin (FECIT, vero@fecit.fr, tel: 33-(0)5.62.47.58.30),
Nathalie Brousset (CERFACS, brousset@cerfacs.fr, tel: 33-(0)5.61.19.30.39).
Contact and information:
Sophie VALCKE (CERFACS, valcke@cerfacs.fr, tel: 33-(0)5.61.19.30.76)
Agenda:
The abstract document (.doc file, 49 kB)October 19th, 2000:
10:00-10:30 Gathering and coffee
10:30-10:45 Welcome by Naoya TAMURA and Jean-Claude ANDRE
10:45-11:00 Introduction: S. Valcke (CERFACS) (.ppt file, 110 kB)
11:00-12:30 Session 1 (Chairman: O. Thual) - Existing couplers and their foreseen evolution
11:00-11:15 The OASIS coupler, CERFACS (S. Valcke) (.tar.gz file, 166 kB)
11:15-11:40 The NCAR Community Climate System Model Coupler, NCAR (T. Bettge) (.ppt file, 355 kB)
11:40-12:05 The Data Broker, UCLA (K. Sklower and R. Mechoso) (.ppt file, 430 kB)
12:05-12:30 The Flexible Modeling System, GFDL (V. Balaji) (.ps file, 104 kB)
12:30-14:00 Lunch break
14:00-15:15 Session 1- continuation
14:00-14:25 MpCCI - A general library for coupling parallel simulation codes, GMD (R. Redler) (.ps file, 777 kB)
14:25-14:50 "The Fujin" : a framework of a parallel non-hydrostatic model supporting coupling with other models, RIST (T. Arakawa) (.ppt file, 431 kB)
14:50-15:15 Calcium, EDF (J.E. Rougier)
15:15-16:15 Session 2 (Chairman: R. Mechoso) - Prospectives on coupled climate modelling at :
15:15-15:45 Météo-France (S. Planton) (.rtf.gz file, 19464 kB)
15:45-16:15 IPSL (M.-A. Foujols) (.doc file, 33 kB)
16:15-16:45 Coffee break
16:45-18:15 Session 2- continuation
16:45-17:15 MPI-DKRZ (S. Legutke)
17:15-17:45 ECMWF (T. Stockdale)
17:45-18:15 Met Office (M. Bell) (.ppt file, 46 kB)
20:00 Banquet
October 20th, 2000
08:45-10:25 Session 3 (Chairman: K. Miura) - Foreseen evolution of coupling aspects in:
08:45-09:10 High-resolution ocean modelling- The Clipper project (A. Jouzeau) (.pdf file, 1065 kB)
09:10-09:35 Multi-resolution approach and model nesting in ocean modelling (E. Blayo, UJF) (.doc file, 553 kB)
09:35-10:00 Sea-ice modelling (H. Goosse, UCL-ASTR)
10:00-10:25 Hydrology-atmosphere coupling (F. Habets, Météo-France)
10:25-11:00 Coffee break
10:40-12:45 Session 3- continuation
11:00-11:25 Soil modelling (J. Polcher, LMD) (.pdf file, 108 kB)
11:25-11:50 Atmospheric Chemistry (VH Peuch, Météo-France) (.pdf.gz file, 11687 kB)
11:50-12:25 Atmosphere and Carbon cycle (H Le Treut, LMD)
12:25-14:00 Lunch break
14:00-15:30 Session 4 (Chairman: J.-F. Geleyn)- Super-computer and programming evolution
14:00-14:20 General overview (P. Herchuelz) (.ppt file, 362 kB)
14:20-14:40 Fujitsu (J. Latour) (.pdf file, 4843 kB)
14:40-15:00 NEC (R. Hempel)
15:00-15:20 SGI (Ilene Carpenter) (.ppt file, 3146 kB)
15:40-17:15 Discussion and wrap-up
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