Workshop on numerical and computational methods for simulation of all-scale geophysical flows

ECMWF | Reading | 3-6 October 2016

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Workshop description

The workshop aimed to bring together scientists working on the various aspects of model development. In particular, interdisciplinary research and progress on numerical schemes, parallel and energy-efficient computing, coupling of resolved/subgrid-scale parametrised processes and multiscale interactions that could be relevant for numerical weather prediction were welcomed.

The workshop continued a successful series of scientific and technical exchange using forward-in-time differencing for fluids with the EULAG model, bringing together different disciplines of geophysical modelling research, with previous workshops in Bad Tölz, Sopot, Loughborough, and Mainz.

Presentations

Monday 3 October

Welcome
Erland Källén (ECMWF)
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Results and challenges with Dynamo, the Met Office’s next generation dynamical core
Tommaso Benacchio (Met Office)
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A finite-volume module for cloud-resolving simulations of global atmospheric flows
Piotr Smolarkiewicz (ECMWF)
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Dimension splitting errors and a long time-step multi-dimensional scheme for atmospheric transport
Hilary Weller (University of Reading)
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Towards Exascale Computing with the Atmospheric Model NUMA
Andreas Müller (ECMWF)
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Split-explicit methods and local linear splitting

Oswald Knoth (Leibniz Institute for Tropospheric Research)

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Computation at a coordinate singularity
Joseph Prusa (Teraflux Corporation)
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Challenges in weather and climate modelling on the route to exascale
Gianmarco Mengaldo (ECMWF)
 
Improving accuracy over steep slopes
James Shaw (University of Reading)
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A finite-volume module for the IFS
Christian Kühnlein (ECMWF)
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Tuesday 4 October

Moving meshes over orography without conservative re-mappings
Philip Browne (University of Reading)

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An unstructured mesh NFT approach to all-scale atmospheric flows
Mike Gillard (Loughborough University)
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Spectral deferred corrections with fast-wave slow-wave splitting
Daniel Ruprecht (University of Leeds)
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Applying the Laplace transform integration scheme in OpenIFS
Eoghan Harney (University College Dublin)
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Third-order accurate MPDATA for arbitrary flows
Maciej Waruszewski (University of Warsaw)
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Sensitivity of the ECMWF model to semi-Lagrangian departure point iterations
Michail Diamantakis (ECMWF)
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The use of inexact hardware to improve weather and climate predictions
Peter Düben (University of Oxford)
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Application of anelastic and compressible EULAG solvers for limited-area numerical weather prediction in the COSMO consortium
Damian Wójcik (IMGW-PIB)
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Modeling of daytime convective development over land with COSMO-EULAG
Bogdan Rosa (IMGW-PIB)
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Can we model unresolved effective mass transport in a NWP model?
Sylvie Malardel (ECMWF)
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Wednesday 5 October

Simulating the characteristics of tropical cyclones over the South West Indian Ocean using a stretched-grid global climate model
Babatunde Abiodun (University of Cape Town) and Molulaqhooa Maoyi (University of Cape Town)
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Separating dynamical and microphysical impacts of aerosols on deep convection applying piggybacking methodology
Wojciech Grabowski (NCAR)
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Idealized model simulations of gravity wave propagation – modi
fications in the tropopause region

Vera Bense (Johannes Gutenberg University)
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Turbulent transport of the energy in the entrainment interface layer
Marta Kopeć (University of Warsaw)
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Global instabilities and mode transitions in magnetohydrodynamical ILES simulations of solar convection
Paul Charbonneau (Université de Montréal)
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Modulated heat transport in global MHD simulations of solar convection
Jean-Francois Cossette (Laboratory for Atmospheric and Space Physics)

 
Behind the scenes: benchmarking sub-grid scales models in global simulations of stellar convective dynamos
Antoine Strugarek (Université de Montréal)
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EULAG 2016 – status and challenges
Zbigniew Piotrowski (Poznan Supercomputing and Networking Center)
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Thursday 6 October

The impact of neutral boundary layer turbulence on wind turbine wake: A numerical modelling study
Andreas Dörnbrack (DLR)
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Large-eddy simulations of a wind turbine wake above a forest
Zbigniew Piotrowski (Poznan Supercomputing and Networking Center) and Andreas Dörnbrack (DLR)
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Numerical simulation of stably stratified atmospheric flow around isolated complex-shaped tall building
Michał Korycki (National Centre for Nuclear Research)
Entrainment and anisotropic turbulence in large-eddy simulation of the stratocumulus-topped boundary layer
Jesper Pedersen (University of Warsaw)