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Apr 10, 2019
Dynamical Systems
Chaotic Dynamics

On the computation of the extremal index for time series

The extremal index is a quantity introduced in extreme value theory to measure the presence of clusters of exceedances. In the dynamical systems fram…
Jun 19, 2018
Space Physics
Data Analysis
Statistics and Probability

A variational approach to Data Assimilation in the Solar Wind

Variational Data Assimilation (DA) has enabled huge improvements in the skill of operational weather forecasting. In this study, we use a simple sola…
Sep 13, 2013
Statistical Mechanics
Pattern Formation and Solitons

A non equilibrium Ising model of turbulence

We introduce a model of interacting lattices at different resolutions driven by the two-dimensional Ising dynamics with a nearest-neighbor interactio…
Apr 28, 2012
Statistical Mechanics
Atmospheric and Oceanic Physics
Fluid Dynamics

Statistical mechanics of quasi-geostrophic flows on a rotating sphere

Statistical mechanics provides an elegant explanation to the appearance of coherent structures in two-dimensional inviscid turbulence: while the fine…
May 21, 2014
Methodology

Multivariate Nonparametric Estimation of the Pickands Dependence Fu…

Many applications in risk analysis, especially in environmental sciences, require the estimation of the dependence among multivariate maxima. A way t…
Jan 17, 2011
Atmospheric and Oceanic Physics

Present and Last Glacial Maximum climates as states of maximum entrop…

The Earth, like other planets with a relatively thick atmosphere, is not locally in radiative equilibrium and the transport of energy by the geophysi…
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