A5029030589- Meteorological Phenomena and Simulations
- Fluid Dynamics and Turbulent Flows
- Climate variability and models
- Waste Management and Environmental Impact
- Atmospheric aerosols and clouds
- Geophysics and Gravity Measurements
- Wind and Air Flow Studies
- Mining and Industrial Processes
- Precipitation Measurement and Analysis
- Cryospheric studies and observations
- Geotechnical and Mining Engineering
- Computer Graphics and Visualization Techniques
- Parallel Computing and Optimization Techniques
- Mining and Gasification Technologies
- Distributed and Parallel Computing Systems
- CO2 Sequestration and Geologic Interactions
- Advanced Numerical Methods in Computational Mathematics
- Scientific Computing and Data Management
- Materials Engineering and Processing
- Methane Hydrates and Related Phenomena
- Real-time simulation and control systems
- Aeolian processes and effects
- Renewable energy and sustainable power systems
- Tropical and Extratropical Cyclones Research
- Matrix Theory and Algorithms
Forschungszentrum Jülich
2022-2023
Institute of Meteorology and Water Management
2009-2021
NSF National Center for Atmospheric Research
2011-2012
AGH University of Krakow
2006-2009
University of Warsaw
2005-2009
Institute of Geophysics
2009
Institute of Metallurgy and Materials Science
2006
Abstract. We present a nonhydrostatic finite-volume global atmospheric model formulation for numerical weather prediction with the Integrated Forecasting System (IFS) at ECMWF and compare it to established operational spectral-transform formulation. The novel Finite-Volume Module of IFS (henceforth IFS-FVM) integrates fully compressible equations using semi-implicit time stepping non-oscillatory forward-in-time (NFT) Eulerian advection, whereas solves hydrostatic primitive (optionally...
The ashes from lignite combustion are characterized by high CaO and free contents a potentially interesting material for CO2 bonding, more particularly as theirs economical use is limited. findings of absorption suspensions prepared on the basis ash presented in paper. On these grounds sequestration potential via mineral carbonation aqueous Poland will be estimated.
Abstract. In the simulation of complex multi-scale flows arising in weather and climate modelling, one biggest challenges is to satisfy strict service requirements terms time solution budgetary constraints energy solution, without compromising accuracy stability application. These simulations require algorithms that minimise footprint along with required produce a maintain physically level accuracy, are numerically stable, resilient case hardware failure. The European Centre for Medium-Range...
The effects of wind shear and radiative cooling on the stratocumulus‐topped boundary layer (STBL) were investigated via a set large‐eddy simulations. set‐up numerical experiments was based Flight TO13 from Physics Stratocumulus Top (POST) field campaign, in which sensible latent heat fluxes at surface small thermodynamic conditions prevented cloud‐top entrainment instability. results demonstrate that presence invigorated convective circulations across STBL sharpened inversion above cloud,...
Summary The goal of this study is to adapt the multiscale fluid solver EULerian or LAGrangian framewrok (EULAG) future graphics processing units (GPU) platforms. EULAG model has proven record successful applications, and excellent efficiency scalability on conventional supercomputer architectures. Currently, being implemented as new dynamical core COSMO weather prediction framework. Within study, two main modules EULAG, namely multidimensional positive definite advection transport algorithm...
A comparison between anelastic and compressible convection-permitting weather forecasts for the Alpine region is presented. This involves mesoscale simulation of a typical westerly flow accompanied by passage frontal systems as well intense airmass convection orographic convection. The limited-area model employing 2.2-km horizontal grid length driven time-dependent boundary conditions from coarse-resolution model. results obtained with versions show good agreement. Validations 10-m wind, 2-m...
Abstract. In the simulation of complex multi-scale flow problems, such as those arising in weather and climate modelling, one biggest challenges is to satisfy operational requirements terms time-to-solution energy-to-solution yet without compromising accuracy stability calculation. These competing factors require development state-of-the-art algorithms that can optimally exploit targeted underlying hardware efficiently deliver extreme computational capabilities typically required forecast...
Wind turbine wake flow characteristics are studied in a strongly sheared and turbulent forest boundary layer neutral plane wall flow. The reference simulations without wind yield similar results as earlier large-eddy by Shaw Schumann (1992) Porte-Agel et al. (2000). To use the fields from homogeneous layers on fly inflow for simulations, new efficient methodology was developed multiscale geophysical solver EULAG. With this method fully can be achieved upstream of which independent reproduce...
The development of precipitating warm clouds is affected by several effects small-scale air turbulence including enhancement droplet-droplet collision rate turbulence, entrainment and mixing at the cloud edges, coupling mechanical thermal energies various scales. Large-scale computation a viable research tool for quantifying these multiscale processes. Specifically, top-down large-eddy simulations (LES) shallow convective typically resolve scales turbulent energy-containing eddies while...
Abstract. We present a nonhydrostatic finite-volume global atmospheric model formulation for numerical weather prediction with the Integrated Forecasting System (IFS) at ECMWF, and compare it to established operational spectral-transform formulation. The novel Finite-Volume Module of IFS (henceforth IFS-FVM) integrates fully compressible equations using semi-implicit time stepping non-oscillatory forward-in-time (NFT) Eulerian advection, whereas solves hydrostatic primitive (optionally...
Abstract. Recognizing the leap in high-performance computing with accelerated co-processors, we propose a lightweight approach to adapt legacy codes next generation hardware and achieve efficiently high degree of performance portability. We focus on abstracting kernels at loop levels based lightweight, preprocessor-based embedded Domain Specific Language (eDSL) concept conjunction Unified Memory management. outline set code pre-adaptations that facilitate proposed abstraction. In two...