Zobrazeno 1 - 10
of 341
pro vyhledávání: '"86A10"'
We present a novel reduced-order Model (ROM) that leverages optimal transport (OT) theory and displacement interpolation to enhance the representation of nonlinear dynamics in complex systems. While traditional ROM techniques face challenges in this
Externí odkaz:
http://arxiv.org/abs/2411.08750
Deep learning models have made remarkable strides in precipitation prediction, yet they continue to struggle with capturing the spatial details of the features of radar images, particularly over high precipitation intensity areas. This shortcoming is
Externí odkaz:
http://arxiv.org/abs/2410.14103
Autor:
Stefanescu, Eduard
We investigate the boundary-value problem of atmospheric Ekman flows with piecewise-uniform eddy viscosity. In addition we present a method for finding more general solutions by considering eddy viscosity as an arbitrary step-function. We discuss the
Externí odkaz:
http://arxiv.org/abs/2409.04052
Route to chaos and resonant triads interaction in a truncated Rotating Nonlinear shallow-water model
Autor:
Carbone, Francesco, Dutykh, Denys
Publikováno v:
PLOS ONE 19(8): e0305534, 2024
The route to chaos and phase dynamics in a rotating shallow-water model were rigorously examined using a five-mode Galerkin truncated system with complex variables. This system is valuable for investigating how large/meso-scales destabilize and evolv
Externí odkaz:
http://arxiv.org/abs/2408.14495
In this paper, we consider the initial-boundary value problem to the three-dimensional primitive equations for the oceanic and atmospheric dynamics with only horizontal eddy viscosities in the horizontal momentum equations and only vertical diffusivi
Externí odkaz:
http://arxiv.org/abs/2408.06932
Autor:
Roccetti, Giulia, Bugliaro, Luca, Gödde, Felix, Emde, Claudia, Hamann, Ulrich, Manev, Mihail, Sterzik, Michael, Wehrum, Cedric
Surface albedo is an important parameter in radiative transfer simulations of the Earth's system, as it is fundamental to correctly calculate the energy budget of the planet. The Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on NA
Externí odkaz:
http://arxiv.org/abs/2407.18030
Autor:
Badza, Aleksandar, Froyland, Gary
Macroscopic features of dynamical systems such as almost-invariant sets and coherent sets provide crucial high-level information on how the dynamics organises phase space. We introduce a method to identify time-parameterised families of almost-invari
Externí odkaz:
http://arxiv.org/abs/2407.07278
This paper concerns the large time asymptotic behavior of solutions to the free boundary problem of the compressible primitive equations in atmospheric dynamics with physical vacuum. Up to second order of the perturbations of an equilibrium, we have
Externí odkaz:
http://arxiv.org/abs/2406.19259
Suspended in the atmosphere are millions of tonnes of mineral dust which interacts with weather and climate. Accurate representation of mineral dust in weather models is vital, yet remains challenging. Large scale weather models use high power superc
Externí odkaz:
http://arxiv.org/abs/2406.11754
Autor:
Brandt, Felix
This paper proves the local-in-time strong well-posedness of a parabolic-hyperbolic regularized version of Hibler's sea ice model. Hibler's model is the most frequently used sea ice model in climate science. Lagrangian coordinates are employed to han
Externí odkaz:
http://arxiv.org/abs/2405.20198