199 citations · 452 across the 20 of their papers we have counts for
20 papers
Zeitlin truncation of a Shallow Water Quasi-Geostrophic model for planetary flow
Arnout Franken, Martino Caliaro, Paolo Cifani +1
In this work, we consider a Shallow-Water Quasi Geostrophic equation on the sphere, as a model for global large-scale atmospheric dynamics. This equation, previously studied by Ver…
Data-driven stochastic spectral modeling for coarsening of the two-dimensional Euler equations on the sphere
Sagy Ephrati, Paolo Cifani, Milo Viviani +1
A resolution-independent data-driven stochastic parametrization method for subgrid-scale processes in coarsened fluid descriptions is proposed. The method enables the inclusion of…
An explicit method to determine Casimirs in 2D geophysical flows
Erwin Luesink, Bernard Geurts
Conserved quantities in geophysical flows play an important role in the characterisation of geophysical dynamics and aid the development of structure-preserving numerical methods.…
Casimir preserving spectrum of two-dimensional turbulence
Paolo Cifani, Milo Viviani, Erwin Luesink +2
We present predictions of the energy spectrum of forced two-dimensional turbulence obtained by employing a structure-preserving integrator. In particular, we construct a finite-mod…
Data-driven stochastic Lie transport modelling of the 2D Euler equations
Sagy Ephrati, Paolo Cifani, Erwin Luesink +1
In this paper, we propose and assess several stochastic parametrizations for data-driven modelling of the two-dimensional Euler equations using coarse-grid SPDEs. The framework of…
Casimir preserving stochastic Lie-Poisson integrators
Erwin Luesink, Sagy Ephrati, Paolo Cifani +1
Casimir preserving integrators for stochastic Lie-Poisson equations with Stratonovich noise are developed extending Runge-Kutta Munthe-Kaas methods. The underlying Lie-Poisson stru…