Annual Seminar 2013: Recent developments in numerical methods for atmosphere and ocean modelling

The Seminar presented a pedagogical review of recent advances and future challenges in high-resolution numerical modelling of the atmosphere and ocean. It was held at ECMWF from 2-5 September 2013.

Description

The presentations during this seminar gave a pedagogical review of recent advances and future challenges in high-resolution numerical modelling of the atmosphere and ocean. Historically, the development of numerical methods is driven by questions of numerical stability, accuracy and preserving physical conservation laws. However, recent developments are primarily driven by the efficiency of numerical methods on the massively parallel computer architectures expected in the future. Topics include a discussion of various approximations to the fully-compressible Euler equations, different horizontal and vertical discretizations, as well as different time integration schemes.

Programme

PDF iconContents and introduction

PDF iconAnnex I: Participants

PDF iconAnnex II: Programme

Presentations

Monday 2 September  

The ECMWF model, progress and challenges

Nils Wedi (ECMWF) 

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GungHo, a new dynamical core for the Unified Model

Nigel Wood (UK MetOffice) 

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A non-hydrostatic, semi-implicit dynamical core for limited-area and global applications

Pierre Bénard (MétéoFrance)

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The Icosahedral Nonhydrostatic(ICON) Modelling framework of DWD and MPI-M

Günther Zängl (DWD) 

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Tuesday 3 September  

Parallelisation and exascale computing challenges

George Mozdzynski (ECMWF)

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Global non-hydrostatic modelling using Voronoi meshes

Bill Skamarock (NCAR)

 

Physics/dynamics coupling at very high resolution

Sylvie Malardel (ECMWF)

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Global convection-permitting simulations

Hirofumi Tomita (RIKEN/AICS)

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The non-hydrostatic convection-permitting HARMONIE model

Mariano Hortal (Hirlam/INM)

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The COSMO model: towards cloud-resolving NWP

Michael Baldauf (DWD)

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Wednesday 4 September  

Ocean circulation and air-sea interaction

Peter Janssen (ECMWF)

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Multiscale ocean simulations on unstructured meshes

Sergey Danilov (AWI)

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Unstructured meshes for atmospheric simulations

Joanna Szmelter (University of Loughborough)

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Finite element methods for NWP and climate 

Colin Cotter (Imperial College)

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Continuous (CG) and discontinuous Galerkin (DG) methods

Frank Giraldo (Naval Postgraduate School, Monterey)

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Semi-Lagrangian techniques for atmospheric modelling, current state and future challenges

Michail Diamantakis (ECMWF)

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Thursday 5 September  

Horizontally-explicit vertically-implicit (HEVI) time-stepping methods for NWP and climate models

Sarah-Jane Lock (ECMWF)

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Computational modes in weather and climate models

John Thuburn (Exeter University)

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Multiple scales analyses for atmospheric flows and implications for numerical modelling

Rupert Klein (Freie Universität Berlin)

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Deriving soundproof systems from variational principles

Darryl Holm (Imperial College)

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A unified framework for discrete integrations of compressible and soundproof PDEs of atmospheric dynamics

Piotr Smolarkiewicz (ECMWF)

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Blurring the boundary between dynamics and physics

Tim Palmer (University of Oxford)

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Proceedings

Monday 2 September  

The ECMWF model, progress and challenges

Nils Wedi (ECMWF) 

PDF icon

GungHo, a new dynamical core for the Unified Model

Nigel Wood (UK MetOffice) 

PDF icon

A non-hydrostatic, semi-implicit dynamical core for limited-area and global applications

Pierre Bénard (MétéoFrance)

PDF icon

The Icosahedral Nonhydrostatic(ICON) Modelling framework of DWD and MPI-M

Günther Zängl (DWD) 

PDF icon

 

Tuesday 3 September  

Parallelisation and exascale computing challenges

George Mozdzynski (ECMWF)

PDF icon

Global non-hydrostatic modelling using Voronoi meshes

Bill Skamarock (NCAR)

PDF icon

Physics/dynamics coupling at very high resolution

Sylvie Malardel (ECMWF)

PDF icon

Global convection-permitting simulations

Hirofumi Tomita (RIKEN/AICS)

-

The non-hydrostatic convection-permitting HARMONIE model

Mariano Hortal (Hirlam/INM)

PDF icon

The COSMO model: towards cloud-resolving NWP

Michael Baldauf (DWD)

PDF icon

 

Wednesday 4 September  

Ocean circulation and air-sea interaction

Peter Janssen (ECMWF)

-

Multiscale ocean simulations on unstructured meshes

Sergey Danilov (AWI)

PDF icon

Unstructured meshes for atmospheric simulations

Joanna Szmelter (University of Loughborough)

PDF icon

Finite element methods for NWP and climate 

Colin Cotter (Imperial College)

PDF icon

Continuous (CG) and discontinuous Galerkin (DG) methods

Frank Giraldo (Naval Postgraduate School, Monterey)

PDF icon

Semi-Lagrangian techniques for atmospheric modelling, current state and future challenges

Michail Diamantakis (ECMWF)

PDF icon

 

Thursday 5 September  

Horizontally-explicit vertically-implicit (HEVI) time-stepping methods for NWP and climate models

Sarah-Jane Lock (ECMWF)

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Computational modes in weather and climate models

John Thuburn (Exeter University)

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Multiple scales analyses for atmospheric flows and implications for numerical modelling

Rupert Klein (Freie Universität Berlin)

PDF icon

Deriving soundproof systems from variational principles

Darryl Holm (Imperial College)

-

A unified framework for discrete integrations of compressible and soundproof PDEs of atmospheric dynamics

Piotr Smolarkiewicz (ECMWF)

PDF icon

Blurring the boundary between dynamics and physics

Tim Palmer (University of Oxford)

-

Local information


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