Our fourth annual workshop on "Scales and scaling cascades in geophysical systems" will be held April 4-6, 2018 at "Haus des Sports" in Hamburg, Germany.
You can find more information (e.g. review, slides, picture gallery) here.
Complex processes involving cascades of scales pose ubiquitous challenges in natural science research. Often the smallest and largest scales are widely separated in such processes, as e.g. for the different dynamical regimes in atmosphere and ocean: gravity waves, small-scale turbulence and geostrophically balanced flow. Interactions between the smallest, largest, and intermediate scales connecting different dynamical regimes challenge our established theoretical or computational tools and the formulation of consistent models.
| Wednesday, April 4 2018 | Thursday, April 5 2018 | Friday, April 6 2018 | ||||||||||
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08:00 – 08:45 | Registration |
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08:45 – 09:00 | Introduction | Carsten Eden |
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Talk 1 09:00 – 09:40 | WEAKLY OR STRONGLY NONLINEAR MESOSCALE DYNAMICS? | ERIK LINDBORG | Talk 14 9:00-9:40 | DYNAMICALLY CONSISTENT PARAMETERIZATION OF MESOSCALE EDDIES | PAVEL BERLOFF
| Talk 26 09:00–09:40 | SCATTERING OF INTERNAL TIDES BY GEOSTROPHIC FLOWS
| JACQUES VANNESTE | |||||
Talk 2 09:40 – 10:05 | Analysis of length, time, and velocity scales in the mesosphere | Victor Avsarkisov | Talk 15 9:40 – 10:05 | Multiscale partitioning of available potential energy in energetically consistent ocean models | Remi Tailleux
| Talk 27 09:40– 10:05 | Asymptotic scale-dependent stability of surface quasi-geostrophic vortices: semi-analytic results | Gualtiero Badin | |||||
Talk 3 10:05 – 10:30 | QNSE Theory of Turbulence in Rotating Fluids and the Nastrom & Gage Spectrum | Boris Galperin | Talk 16 10:05 – 10:30 | Parameterising Eddy-Induced Lagrangian Transport | Josephine Park
| Talk 28 10:05– 10:30 | Multiscale asymptotics for strongly tilted tropical vortices | Rupert Klein | |||||
10:30 – 11:00 | Coffee break |
| 10:30 – 11:00 | Coffee break |
| 10:30 – 11:00 | Coffee break |
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Talk 4 11:00 – 11:40 | INSIGHTS INTO THE IMPACT OF MODEL RESOLUTION ON EDDY FEEDBACKS FROM THE PERSPECTIVE OF EDDY GEOMETRY | STEPHANIE WATERMAN | Talk 17 11:00 – 11:25 | A geometric interpretation of vertical structure and eddy-mean flow interaction in the Southern Ocean | Mads B. Poulsen
| Talk 29 11:00 –11:25 | Model Uncertainty Quantification for Data Assimilation in partially observed multi-scale systems | Sahani Pathiraja
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Talk 5 11:40 – 12:05 | Energy transfers in internal gravity wave spectra | Dirk Olbers
| Talk 18 11:25 – 11:50 | Energy budget-based backscatter in a shallow water model of a double gyre basin | Milan Kloewer | Talk 30 11:25–11:50 | Climate-Dependence in Empirical Parameters of Subgrid-Scale Parameterizations using the Fluctuation-Dissipation Theorem | Martin Pieroth | |||||
Talk 6 12:05 – 12:30 | Downscale energy transfer from balanced to unbalanced regime | Manita Chouksey
| Talk 19 11:50 – 12:15 | Wave decomposition of meridional energy transports in Northern Hemisphere midlatitudes | Valerio Lembo | Talk 31 11:50 –12:15 | Behaviour of Cloud Models as seen from Asymptotic Analysis | Juliane Rosemeier | |||||
Talk 7 12:30 – 12:55 | High-order balance-imbalance decomposition and interaction | Hossein Kafiabad | Talk 20 12:15 – 12:55 | GLOBAL MODELING OF THE OCEANIC INTERNAL GRAVITY WAVE SPECTRUM
| BRIAN ARBIC
| Talk 32 12:15– 12:40 | Stochastic subgrid-scale parameterization for one-dimensional shallowwater dynamics using stochastic mode reduction | Stamen Dolaptchiev | |||||
12:55 – 14:00 | Lunch Break |
| 12:55– 14:15 | Lunch Break |
| 12:40– 14:00 | Lunch Break |
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Talk 8 14:00 – 14:25 | Small-scale versus large-scale secondary gravity waves in the middle atmosphere | Erich Becker | Talk 21 14:15 – 14:55 | PERTURBATION EQUATIONS FOR ALL-SCALE ATMOSPHERIC DYNAMICS
| PIOTR SMOLARKIEWICZ
| Talk 33 14:00-14:25 | Potential vorticity redistribution by localised transient forcing in the shallow-water model | Michael Haigh | |||||
Talk 9 14:25 – 14:50 | Laboratory experiments to study gravity wave emission from baroclinic fronts | Uwe Harlander
| Talk 22 14:55 – 15:20 | Simulating all-scale global weather with the Finite-Volume Module of the IFS | Christian Kühnlein
| Talk 34 14:25-14:50 | Velocity statistics for point vortices of the local α-models of turbulence | Giovanni Conti | |||||
Talk 10 14:50 – 15:15 | Systematic Decomposition of the MJO and its Northern Hemispheric Extra-Tropical Response into Rossby and Inertio-Gravity Components
| Christian Franzke
| Talk 23 15:20 – 15:45 | Influence of subgrid-scale parameterizations on the boundary layer development in ICONLEM | Jan-Niklas Welß - entfällt -
| 14:50-15:20 | Coffee Break |
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Talk 11 15:15 – 15:40 | Efficient modelling of the gravity-wave interaction with unbalanced resolved flows: Pseudo-momentum-flux convergence vs direct approach | Junhong Wei | Talk 24 15:45 – 16:25 | TOWARDS A SCALABLE MULTISCALE ANALYSIS OF GEOPHYSICAL DATA | ILLIA HORENKO
| Talk 35 15:20– 15:45 | Lagrangian averaged Euler-Boussinesq and primitive equations | Sergiy Vasylkevych | |||||
15:40 – 16:10 | Coffee break |
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Talk 12 16:10 -16:35 | Impact of filaments on the relative dispersion of surface drifters in the Benguela upwelling region
| Julia Draeger-Dietel | Talk 25 16:25 – 16:50 | Flow-induced Coordinates and Reconstruction Techniques for Transient Advection-Diffusion Equations with Multiple Scales | Konrad Simon
| Talk 36 15:45-16:05 | Front propagation in periodic flows for fast reaction and small diffusivity | Alexandra Tzella
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Talk 13 16:35 – 17:00 | Bayesian Inference for Ocean Diffusivity | Yik Keung Ying |
16:50 – 18:30 |
POSTER SESSION
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18:30 – 20:00 |
BUFFET
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Haus des Sports |
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Sessions:
Turbulence
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Gravity waves
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Lagrangian aspects
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Eddies/balanced flow
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Comprehensive atmosphere/ocean modelling
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Multiscale aspects
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Parameterisations
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Confirmed speaker are:
- Brian Arbic (University of Michigan)
- Jaques Vanneste (University of Edinburgh)
- Illia Horenko (Institute of Computational Science ICS)
- Pavel Berloff (Imperial College London)
- Erik Lindborg (KTH Stockholm)
- Stephanie Waterman (The University of British Columbia)
- Piotr Smolarkiewicz (European Centre for Medium-Range Weather Forecasts)
Sponsored by Deutsche Forschungsgemeinschaft (SFB 1114, FOR 1898, TRR 181), this workshop addresses analytical and numerical techniques for the modeling and simulation of such multi-scale interactions, including homogenization, stochastic modeling, parameterizations for subscale processes, and structure-aware numerics. It aims to bring together meteorology, physical oceanography, and applied mathematics to foster collaborative research on the related demanding research problems.
There is no fee required to attend but registration until March 14th, 2018 is necessary.
Please register here.
Please submit your abstract and/or poster here.