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We assess a prognostic formulation of triple coherence relating to energy exchange between mesoscale eddies and the internal wavefield and compare with observations from the Sargasso Sea. This effort involves updates to a theory articulated…

Atmospheric and Oceanic Physics · Physics 2025-04-02 Kurt L. Polzin , Giovanni Dematteis

A scale invariant, selfsimilar atmospheric eddy continuum exists in the planetary atmospheric boundary layer spanning several orders of magnitude in scales and gives rise to the observed fractal geometry for the global cloud cover pattern.…

General Physics · Physics 2007-05-23 A. Mary Selvam , A. S. R. Murty

The intermittency of coherent turbulent structures in the tropical cyclone boundary layer makes them challenging to fully characterize, especially regarding their impact on momentum dynamics in the eyewall. Furthermore, the fine spatial and…

Fluid Dynamics · Physics 2025-04-02 Chibueze N. Oguejiofor , David H. Richter

Oceanic turbulence influences the transport and mixing of freshwater, heat, nutrients, and other biogeochemical tracers. It also has broader implications for oceanic and atmospheric circulations. Tides contribute substantially to the…

Fluid Dynamics · Physics 2025-09-01 H. M. Aravind , Pranav Puthan , Sutanu Sarkar , Sophia Merrifield , Eric Terrill

Various models of solar sub-surface stratification are tested in the global EULAG-MHD solver to simulate diverse regimes of near-surface convective transport. Sub- and superadiabacity are altered at the surface of the model ($ r >…

Solar and Stellar Astrophysics · Physics 2019-11-19 Andrey M. Stejko , Gustavo Guerrero , Alexander G. Kosovichev , Piotr K. Smolarkiewicz

We study the dynamics of a dipolar Bose-Einstein condensate, like for example a $^{52}$Cr or $^{164}$Dy condensate, interacting with a superconducting surface. The magnetic dipole moments of the atoms in the Bose-Einstein condensate induce…

Quantum Gases · Physics 2014-11-19 Igor Sapina , Thomas Dahm

We report experimental observations of two canonical surface wave patterns --- ship waves and ring waves --- skewed by sub-surface shear, thus confirming effects predicted by recent theory. Observed ring waves on a still surface with…

Fluid Dynamics · Physics 2019-08-12 Benjamin K. Smeltzer , Eirik Æsøy , Simen Å. Ellingsen

Downflows on the solar surface are suspected to play a major role in the dynamics of the convection zone. We investigate the existence of the long-lasting downflows whose effects influence the interior of the Sun and the outer layers. We…

Solar and Stellar Astrophysics · Physics 2021-03-05 T. Roudier , M. Švanda , J. M. Malherbe , J. Ballot , D. Korda , Z. Frank

We investigate the ocean wave field under Hurricane SAM (2021). Whilst measurements of waves under Tropical Cyclones (TCs) are rare, an unusually large number of quality in situ and remote measurements are available in that case. First, we…

Atmospheric and Oceanic Physics · Physics 2024-04-23 Xiaolu Zhao , Ludivine Oruba , Danièle Hauser , Biao Zhang , Emmanuel Dormy

Air-sea drag governs the momentum transfer between the atmosphere and the ocean, and remains largely unknown in hurricane winds. We revisit the momentum budget and eddy-covariance methods to estimate the surface drag coefficient in the…

Atmospheric and Oceanic Physics · Physics 2020-09-15 Milan Curcic , Brian K. Haus

Solar sail technology is ready to be deployed in a satellite mission carrying a science-grade magnetometer. In preparation for such a mission, it is essential to characterize the interactions between the sail and the ambient plasma that…

Space Physics · Physics 2025-10-09 Konstantinos Horaites , Juan V. Rodriguez , Ying Liu

Turbulence and large-scale waves in the tropical region are studied using the spherical shallow water equations. With mesoscale vorticity forcing, both moist and dry systems show kinetic energy scaling that is dominated by rotational modes,…

Atmospheric and Oceanic Physics · Physics 2021-04-28 J. Schröttle , D. L. Suhas , N. Harnik , J. Sukhatme

Investigation of propagation, conversion, and scattering of MHD waves in the Sun is very important for understanding the mechanisms of observed oscillations and waves in sunspots and active regions. We have developed 3D linear MHD numerical…

Astrophysics · Physics 2011-02-11 K. V. Parchevsky , A. G. Kosovichev

... [C]urrent stellar models predict oscillation frequencies that are systematically affected by simplified modelling of the near-surface layers. We use three-dimensional radiation hydrodynamics simulations to better model the near-surface…

Solar and Stellar Astrophysics · Physics 2016-08-31 W. H. Ball , B. Beeck , R. H. Cameron , L. Gizon

A high-resolution wave climate projection for the northwestern Atlantic Ocean has been conducted to help assess possible regional impacts due to global climate change. The spectral wave model NOAA WAVEWATCH III is utilized with three…

Atmospheric and Oceanic Physics · Physics 2018-07-10 Adrean Webb , Tomoya Shimura , Nobuhito Mori

Anomaly-diffusing energy balance models (AD-EBM) are routinely employed to analyze and emulate the warming response of both observed and simulated Earth systems. We demonstrate a deficiency in common multi-layer as well as…

Atmospheric and Oceanic Physics · Physics 2019-03-01 Balasubramanya T. Nadiga , Nathan M. Urban

We measure the eddy viscosity in the outermost layers of the solar convection zone by comparing the rotation law computed with the Reynolds stress resulting from f-plane simulations of the angular momentum transport in rotating convection…

Astrophysics · Physics 2016-08-16 G. Rüdiger , M. Küker , K. L. Chan

"Eddy saturation" is the regime in which the total time-mean volume transport of an oceanic current is relatively insensitive to the wind stress forcing and is often invoked as a dynamical description of Southern Ocean circulation. We…

Atmospheric and Oceanic Physics · Physics 2019-12-04 Navid C. Constantinou , Andrew McC. Hogg

Surface waves process the turbulent disturbances which drive dynamics in many space, astrophysical and laboratory plasma systems, with the outer boundary of Earth's magnetosphere, the magnetopause, providing an accessible environment to…

Space Physics · Physics 2021-10-07 M. O. Archer , M. D. Hartinger , F. Plaschke , D. J. Southwood , L. Rastaetter

Lee waves generated by stratified flow over rough bottom topography in the ocean extract momentum and energy from the geostrophic flow, causing drag and enhancing turbulence and mixing in the interior ocean when they break. Inviscid linear…

Fluid Dynamics · Physics 2021-09-01 Lois Baker , Ali Mashayek