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Couplers developed at CERFACS

Coupling

Coupling numerical models is a central issue in many research fields such as climate modelling, computational fluid dynamics, atmospheric chemistry, etc.

Ideally, a coupler, i.e., the software interface between the different models, should allow the realization of coupled simulations on different types of platforms at a minimal cost, the  testing of different coupling algorithms (e.g. time strategy or interpolation methods), or to change the numerical modeling components that participate in the coupled simulation in order to realize coupled model intercomparisons. Two couplers are developed at CERFACS: OASIS and OpenPalm.

OASIS

OASIS3-MCT coupling

OASIS3-MCT coupling

The OASIS coupler « Ocean Atmosphere Sea Ice Soil » is a software allowing synchronized exchanges of coupling information between numerical codes representing different components of the climate system.

For further information :  site Web OASIS

Contact at CERFACS : Sophie Valcke

 

OpenPalm

OpenPALM coupling

OpenPALM coupling

 

OpenPalm is a software allowing the concurrent execution and the intercommunication of programs based on in-house as well as commercial codes. For climate modelling an ocean model could be coupled with and atmospheric model through OpenPalm, for a combustion chamber temperature simulation a combustion model could be coupled with a radiation model…

For further information : site Web OpenPalm

Contact at CERFACS : Florent Duchaine

NEWS

NextSim General Assembly and TC meeting

CERFACS |  16 September 2021

The General Assembly and TC Meeting took place on 15-16 September 2021. CERFACS is involved in the NextSim project (). The primary objective is to increase the capabilities of Computational Fluid Dynamics tools on extreme-scale parallel computing platforms for aeronautical design. This project has received funding from the European High-Performance Computing Joint Undertaking (JU) under grant agreement N° 956104. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and Spain, France, Germany. This project has received funding from the Agence Nationale de la Recherche (ANR) under grant agreement N° ANR-20-EHPC-0002-02. For more information, please visit Read more


Sophie Valcke from Cerfacs co-authored a new book on atmosphere-ocean modelling

CERFACS |  18 August 2021

new book "Atmosphere-Ocean Modelling - Couling and Couplers” by Prof. Carlos R Mechoso, Prof. Soon-Il An and Dr Sophie Valcke has just been published by World Scientific. The present book fills a void in the current literature by presenting a basic and yet rigorous treatment of how the models of the atmosphere and the ocean are put together into a coupled system. Details are available at  Abstract: Coupled atmosphere-ocean models are at the core of numerical climate models. There is an extraordinarily broad class of coupled atmosphere-ocean models ranging from sets of equations that can be solved analytically to highly detailed representations of Nature requiring the most advanced computers for execution. The models are applied to subjects including the conceptual understanding of Earth’s climate, predictions that support human activities in a variable climate, and projections aimed to prepare society for climate change. The present book fills a void in the current literature by presenting a basic and yet rigorous treatment of how the models of the atmosphere and the ocean are put together into a coupled system. The text of the book is divided into chapters organized according to complexity of the components that are coupled. Two full chapters are dedicated to current efforts on the development of generalist couplers and coupling methodologies all over the worldRead more

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