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The statistical objects characterizing turbulence in real turbulent flows differ from those of the ideal homogeneous isotropic model.They containcontributions from various 2d and 3d aspects, and from the superposition ofinhomogeneous and…

chao-dyn · Physics 2009-10-31 Susan Kurien , Victor S. L'vov , Itamar Procaccia , K. R. Sreenivasan

For over 40 years, remote sensing observations of the Earth's oceans have yielded global measurements of sea surface temperature (SST). With a resolution of approximately 1km, these data trace physical processes like western boundary…

Atmospheric and Oceanic Physics · Physics 2023-03-23 J. Xavier Prochaska , Erdong Guo , Peter C. Cornillon , Christian E. Buckingham

A persistent spatial organization of eddies is identified in the lowest portion of the stably-stratified planetary boundary layer. The analysis uses flow realizations from published large-eddy simulations (Sullivan et al., J Atmos Sci…

Fluid Dynamics · Physics 2023-09-01 Michael Heisel , Peter P Sullivan , Gabriel G Katul , Marcelo Chamecki

Despite the importance and vulnerability of small island nations and their ecosystems, they frequently have insufficient observations to provide baseline or long-term perspectives on climate variability and change, and global model…

Atmospheric and Oceanic Physics · Physics 2017-07-18 Kristopher B. Karnauskas , Jeffrey P. Donnelly , Kevin J. Anchukaitis

A poleward-thinning ice shell can drive circulation in the subsurface oceans of icy moons by imposing a meridional temperature gradient--colder at the equator than the pole--through the freezing point suppression due to pressure. This…

Earth and Planetary Astrophysics · Physics 2025-10-31 Yixiao Zhang , Wanying Kang , John Marshall

The Atlantic Meridional Overturning Circulation (MOC) is a crucial part of the climate system because of its associated northward heat transport. The present-day MOC is sensitive to freshwater anomalies and may collapse to a state with a…

Atmospheric and Oceanic Physics · Physics 2015-06-19 Qing Yi Feng , Jan P. Viebahn , Henk A. Dijkstra

Ocean dynamics constitute a source of incertitude in determining the ocean's role in complex climatic phenomena. Current observation systems have limitations in achieving sufficiently statistical precision for three-dimensional oceanic…

Atmospheric and Oceanic Physics · Physics 2021-01-28 Van-Khoa Nguyen , Santiago Agudelo

We report pore-scale statistical properties of temperature and thermal energy dissipation rate in a two-dimensional porous Rayleigh-B\'enard (RB) cell. High-resolution direct numerical simulations were carried out for the fixed Rayleigh…

Fluid Dynamics · Physics 2023-09-20 Ao Xu , Ben-Rui Xu , Heng-Dong Xi

In situ boundary arrays have been installed in the North Atlantic to measure the large-scale ocean circulation. Here, we use measurements at the western edge of the North Atlantic at $16^\circ$N and $26^\circ$N to investigate low-frequency…

Atmospheric and Oceanic Physics · Physics 2016-10-24 E. Frajka-Williams , M. Lankhorst , J. Koelling , U. Send

Munk (1966) showed that the deep (1000-3000 m) vertical temperature profile is consistent with a one-dimensional vertical advection-diffusion balance, with a constant upwelling and an interior diapycnal diffusivity of $\mathcal{O}(10^{-4})$…

Atmospheric and Oceanic Physics · Physics 2019-08-29 Madeline D. Miller , Xiaoting Yang , Eli Tziperman

Temperature fluctuations in an atmospheric convective boundary layer are investigated by means of Large Eddy Simulations (LES). A statistical characterization for both weak temperature fluctuations and strong temperature fluctuations has…

Atmospheric and Oceanic Physics · Physics 2009-11-07 M. Antonelli , A. Mazzino , U. Rizza

A combined radar remote sensing and in situ data set is used to track packets of nonlinear internal waves as they propagate and shoal across the inner shelf (40m - 9m). The dataset consists of high space-time resolution (5m, 2min) radar…

Atmospheric and Oceanic Physics · Physics 2024-04-30 Alexandra J. Simpson , Jacqueline M. McSweeney , James A. Lerczak , Merrick C. Haller

The dynamic and thermal regimes of climate are regulated by an exchange of energy and momentum between the atmosphere and the ocean. The role exerted by surface waves on this interchange is particularly enigmatic. Waves induce turbulence in…

Atmospheric and Oceanic Physics · Physics 2019-06-27 Alberto Alberello , Federico Frascoli , Miguel Onorato , Alessandro Toffoli

The Mediterranean Sea is known for its limited tidal motions. For example, surface barotropic tidal elevations have an amplitude of 0.1 m in the Northwestern Mediterranean. Nevertheless, these small tides are noticeable in temperature…

Atmospheric and Oceanic Physics · Physics 2026-01-08 Hans van Haren

A parametric instability of an incompressible, viscous, and Boussinesq fluid layer bounded between two parallel planes is investigated numerically. The layer is assumed to be inclined at an angle with horizontal. The planes bounding the…

Fluid Dynamics · Physics 2023-05-01 Jitender Singh

Temperature time traces are obtained in turbulent thermal convection at high Rayleigh numbers. Measurements are made in the midplane of the apparatus, near the sidewall but outside the boundary layer. A telegraph approximation for…

Chaotic Dynamics · Physics 2007-05-23 A. Bershadskii , J. J. Niemela , A. Praskovsky , K. R. Sreenivasan

The diurnal variability of sea surface temperature (SST) may play an important role for cloud organization above the tropical ocean, with implications for precipitation extremes, storminess, and climate sensitivity. Recent cloud-resolving…

Atmospheric and Oceanic Physics · Physics 2024-06-19 Reyk Börner , Jan O. Haerter , Romain Fiévet

Interaction between energy-abundant (sub-)mesoscale eddies and internal waves can lead to turbulence generation and may prove important for replenishment of nutrients for deep-sea life and circulation. However, observational evidence of…

Atmospheric and Oceanic Physics · Physics 2026-01-12 Hans van Haren

Seasonal hypoxia or even anoxia can occur in some local deep basins of coastal waters. Such low summertime oxygen contents especially affect benthic life. The seasonal coastal hypoxia is commonly related to biological increased respiration…

Atmospheric and Oceanic Physics · Physics 2019-07-29 Hans van Haren

We conduct laboratory experiments on the time evolution of an ice layer cooled from below and subjected to a turbulent shear flow of warm water from above. Our study is motivated by observations of warm water intrusion into the ocean cavity…

Fluid Dynamics · Physics 2016-06-29 Eshwan Ramudu , Benjamin Henry Hirsh , Peter Olson , Anand Gnanadesikan