Title: Fallout from U.S. atmospheric nuclear tests in New Mexico and Nevada (1945-1962).

One hundred and one atmospheric nuclear weapon tests were conducted between
1945 and 1962 in the United States, resulting in widespread dispersion of
radioactive fallout, and leading to environmental contamination and population
exposures. Accurate assessment of the ex [...]

Authors: Sébastien Philippe, Susan Alzner, Gilbert P. Compo, Mason Grimshaw, Megan Smith

Link: http://arxiv.org/abs/2307.11040

Title: Data-driven methods to estimate the committor function in conceptual ocean models.

In recent years, several climate subsystems have been identified that may
undergo a relatively rapid transition compared to the changes in their forcing.
Such transitions are rare events in general, and simulating long-enough
trajectories in order to gather sufficie [...]

Authors: Valérian Jacques-Dumas, René M. van Westen, Freddy Bouchet, Henk A. Dijkstra

Link: http://arxiv.org/abs/2306.17049

Title: Mean flow modelling in high-order nonlinear Schr\"odinger equations.

The evaluation and consideration of the mean flow in wave evolution equations
are necessary for the accurate prediction of fluid particle trajectories under
wave groups, with relevant implications in several domains, from the transport
of p [...]

Authors: Alexis Gomel, Corentin Montessuit, Andrea Armaroli, Debbie Eeltink, Amin Chabchoub, Jérôme Kasparian, Maura Brunetti

Link: http://arxiv.org/abs/2306.14254

Title: Graph-Based Matrix Completion Applied to Weather Data.

Low-rank matrix completion is the task of recovering unknown entries of a
matrix by assuming that the true matrix admits a good low-rank approximation.
Sometimes additional information about the variables is known, and
incorporating this information into a matrix completion model can lead to a
better completion quality. We c [...]

Authors: Benoît Loucheur, P.-A. Absil, Michel Journée

Link: http://arxiv.org/abs/2306.08627

Title: Graph-Based Matrix Completion Applied to Weather Data.

Low-rank matrix completion is the task of recovering unknown entries of a
matrix by assuming that the true matrix admits a good low-rank approximation.
Sometimes additional information about the variables is known, and
incorporating this information into a matrix completion model can lead to a
better completion quality. We c [...]

Authors: Benoît Loucheur, P.-A. Absil, Michel Journée

Link: http://arxiv.org/abs/2306.08627

Title: Graph-Based Matrix Completion Applied to Weather Data.

Low-rank matrix completion is the task of recovering unknown entries of a
matrix by assuming that the true matrix admits a good low-rank approximation.
Sometimes additional information about the variables is known, and
incorporating this information into a matrix completion model can lead to a
better completion quality. We c [...]

Authors: Benoît Loucheur, P.-A. Absil, Michel Journée

Link: http://arxiv.org/abs/2306.08627

Title: Non-homogeneous approximation for the kurtosis evolution of shoaling rogue waves.

Bathymetric changes have been experimentally shown to affect the occurrence
of rogue waves. We recently derived a non-homogeneous correction to the
spectral analysis, allowing to describe the evolution of the rogue wave
probability over a shoal. Here, we extend this work to the evolution of the
excess kurtosis o [...]

Authors: Saulo Mendes, Jérôme Kasparian

Link: http://arxiv.org/abs/2301.01996

Title: Model and method to predict the turbulent kinetic energy induced by tidal currents, application to the wave-induced turbulence.

A prediction model for the turbulent kinetic energy (TKE) induced by
tidal-currents is proposed as a function of the barotropic velocity only, along
with a robust method evaluating the different parameters inv [...]

Authors: Clément Calvino, Lucille Furgerot, Emmanuel Poizot, Pascal Bailly du Bois, Anne-Claire Bennis

Link: http://arxiv.org/abs/2305.15146

Title: Towards a finite volume discretization of the atmospheric surface layer consistent with physical theory.

We study an atmospheric column and its discretization. Because of numerical
considerations, the column must be divided into two parts: (1) a surface layer,
excluded from the computational domain and parameterized, and (2) the rest of
the column, which reacts more slowly to vari [...]

Authors: Simon Clément, Florian Lemarié, Eric Blayo

Link: http://arxiv.org/abs/2305.09254

Title: Percolation anticipates abrupt changes in coupled FitzHugh-Nagumo oscillators and the El Ni\~no-Southern Oscillation: an explanatory analysis.

Functional networks are powerful tools to study statistical interdependency
structures in spatially extended or multi-variable systems. They have been used
to get insights into the dynamics of co [...]

Authors: Noémie Ehstand, Reik V. Donner, Cristóbal López, Emilio Hernández-García

Link: http://arxiv.org/abs/2305.05450

Title: Steady-state supersaturation distributions for clouds under turbulent forcing.

The supersaturation equation for a vertically moving adiabatic cloud parcel
is analysed. The effects of turbulent updrafts are incorporated in the shape of
a stochastic Lagrangian model, with spatial and time correlations expressed in
terms of turbulent kinetic energy. Using the Fokker-Planck equation, the
stead [...]

Authors: Manuel Santos Gutiérrez, Kalli Furtado

Link: http://arxiv.org/abs/2305.02871

Title: Approximation of radiative transfer for surface spectral features.

Remote sensing hyperspectral and more generally spectral instruments are
common tools to decipher surface features in Earth and Planetary science. While
linear mixture is the most common approximation for compounds detection
(mineral, water, ice, etc...), the transfer of light in surface and atmospheric
medium are highly non-linear. The exa [...]

Authors: Frédéric Schmidt

Link: http://arxiv.org/abs/2302.02641

Title: Reduction of rain-induced errors for wind speed estimation on SAR observations using convolutional neural networks.

Synthetic Aperture Radar is known to be able to provide high-resolution
estimates of surface wind speed. These estimates usually rely on a Geophysical
Model Function (GMF) that has difficulties accounting for non-wind processes
such as rai [...]

Authors: Aurélien Colin, Pierre Tandeo, Charles Peureux, Romain Husson, Ronan Fablet

Link: http://arxiv.org/abs/2303.09200

Title: Weather regimes and related atmospheric composition at a Pyrenean observatory characterized by hierarchical clustering of a 5-year data set.

Atmospheric composition measurements taken at many high-altitude stations
around the world, aim [...]

Authors: Gueffier Jérémy, Gheusi François, Lothon Marie, Pont Véronique, Philibert Alban, Lohou Fabienne, Derrien Solène, Bezombes Yannick, Athier Gilles, Meyerfeld Yves, Vial Antoine

Link: http://arxiv.org/abs/2303.05819

Title: Scale-aware neural calibration for wide swath altimetry observations.

Sea surface height (SSH) is a key geophysical parameter for monitoring and
studying meso-scale surface ocean dynamics. For several decades, the mapping of
SSH products at regional and global scales has relied on nadir satellite
altimeters, which provide one-dimensional-only along-track satellite [...]

Authors: Febvre Quentin, Ubelmann Clément, Le Sommer Julien, Fablet Ronan

Link: http://arxiv.org/abs/2302.04497

Title: Approximation of radiative transfer for surface spectral features.

Remote sensing hyperspectral and more generally spectral instruments are
common tools to decipher surface features in Earth and Planetary science. While
linear mixture is the most common approximation for compounds detection
(mineral, water, ice, etc...), the transfer of light in surface and atmospheric
medium are highly non-linear. The exa [...]

Authors: Frédéric Schmidt

Link: http://arxiv.org/abs/2302.02641

Title: Multistability in a Coupled Ocean-Atmosphere Reduced Order Model: Non-linear Temperature Equations.

Multistabilities were found in the ocean-atmosphere flow, in a reduced order
ocean-atmosphere coupled model, when the non-linear temperature equations were
solved numerically. In this paper we explain how the full non-linear
Stefan-Bolzmann law was numeri [...]

Authors: Oisín Hamilton, Jonathan Demaeyer, Stéphane Vannitsem, Michel Crucifix

Link: http://arxiv.org/abs/2301.04990

Title: Inversion of sea surface currents from satellite-derived SST-SSH synergies with 4DVarNets.

Satellite altimetry is a unique way for direct observations of sea surface
dynamics. This is however limited to the surface-constrained geostrophic
component of sea surface velocities. Ageostrophic dynamics are however expected
to be significant for horizontal scales below [...]

Authors: Ronan Fablet, Bertrand Chapron, Julien Le Sommer, Florian Sévellec

Link: http://arxiv.org/abs/2211.13059

Title: Non-homogeneous approximation for the kurtosis evolution of shoaling rogue waves.

Bathymetric changes have been experimentally shown to affect the occurrence
of rogue waves. In view of the central role played by the excess kurtosis of
the surface elevation in estimating rare event probabilities, we translate the
recently determined evolution of the rogue wave probability over a shoal into
tha [...]

Authors: Saulo Mendes, Jérôme Kasparian

Link: http://arxiv.org/abs/2301.01996

Title: Saturation of Rogue Wave Amplification over Steep Shoals.

The shoaling of surface gravity waves has been acknowledged as a mechanism of
rogue wave formation. This problem is generally reduced to water waves passing
over a step, but non-equilibrium physics allows finite slopes to be considered.
Using non-homogeneous spectral analysis of a spatially varying energy density
ratio we describe the [...]

Authors: Saulo Mendes, Jérôme Kasparian

Link: http://arxiv.org/abs/2207.13869