Scaling laws for the energy transfer in space plasma turbulence

R Marino, L Sorriso-Valvo - Physics Reports, 2023 - Elsevier
One characteristic trait of space plasmas is the multi-scale dynamics resulting from non-
linear transfers and conversions of various forms of energy. Routinely evidenced in a range …

Turbulence generation by large-scale extreme vertical drafts and the modulation of local energy dissipation in stably stratified geophysical flows

R Marino, F Feraco, L Primavera, A Pumir, A Pouquet… - Physical Review …, 2022 - APS
We observe the emergence of strong vertical drafts in direct numerical simulations of the
Boussinesq equations in a range of parameters of geophysical interest. These structures …

Low-dimensional representation of intermittent geophysical turbulence with high-order statistics-informed neural networks (H-SiNN)

R Foldes, E Camporeale, R Marino - Physics of Fluids, 2024 - pubs.aip.org
We present a novel machine learning approach to reduce the dimensionality of state
variables in stratified turbulent flows governed by the Navier–Stokes equations in the …

Lagrangian irreversibility and energy exchanges in rotating-stratified turbulent flows

S Gallon, A Sozza, F Feraco, R Marino, A Pumir - Physical Review Letters, 2024 - APS
Turbulence in stratified and rotating turbulent flows is characterized by an interplay between
waves and eddies, resulting in continuous exchanges between potential and kinetic energy …

Third‐order structure functions of zonal winds in the thermosphere using CHAMP and GOCE observations

FL Poblet, H Liu, JL Chau - Geophysical Research Letters, 2024 - Wiley Online Library
We use multi‐year observations of cross‐track winds (u) from the CHAllenging Minisatellite
Payload (CHAMP) and the Gravity Field and Steady State Ocean Circulation Explorer …

[HTML][HTML] Frequency spectra of horizontal winds in the mesosphere and lower thermosphere region from multistatic specular meteor radar observations during the …

H Charuvil Asokan, JL Chau, R Marino… - Earth, Planets and …, 2022 - Springer
In recent years, multistatic specular meteor radars (SMRs) have been introduced to study the
Mesosphere and Lower Thermosphere (MLT) dynamics with increasing spatial and …

Validation of multistatic meteor radar analysis using modeled mesospheric dynamics: An assessment of the reliability of gradients and vertical velocities

H Charuvil Asokan, JL Chau, MF Larsen… - Journal of …, 2022 - Wiley Online Library
A virtual meteor radar system based on the upper‐atmosphere extension of the high‐
resolution ICOsahedral Non‐hydrostatic general circulation model is constructed to validate …

The role of field correlations on turbulent dissipation

A Pouquet - Plasma Physics and Controlled Fusion, 2023 - iopscience.iop.org
Nonlinear phenomena and turbulence are central to our understanding and modeling of the
dynamics of fluids and plasmas, and yet they still resist analytical resolution in many …

Temporal large-scale intermittency and its impact on the statistics of turbulence

L Bentkamp, M Wilczek - arXiv preprint arXiv:2312.08281, 2023 - arxiv.org
Turbulent flows in three dimensions are characterized by the transport of energy from large
to small scales through the energy cascade. Since the small scales are the result of the …

Frequency spectra of horizontal winds in the mesosphere and lower thermosphere region from multistatic specular meteor radar observations during the SIMONe …

CA Harikrishnan, JL Chau, R Marino… - Earth, Planets and …, 2022 - search.proquest.com
In recent years, multistatic specular meteor radars (SMRs) have been introduced to study the
Mesosphere and Lower Thermosphere (MLT) dynamics with increasing spatial and …