Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Constantinou, Navid C."'
The North Atlantic Ocean circulation, fueled by winds and surface buoyancy fluxes, carries 1.25$\,$PettaWatts of heat poleward in the subtropics, and plays an important role in regulating global weather and climate patterns. Using a series of simulat
Externí odkaz:
http://arxiv.org/abs/2401.14230
Internal waves propagate on the ocean stratification and carry energy and momentum through the ocean interior. The two most significant sources of these waves in the ocean are surface winds and oscillatory tidal flow across topography. We propose a h
Externí odkaz:
http://arxiv.org/abs/2311.02275
Autor:
Silvestri, Simone, Wagner, Gregory L., Hill, Christopher, Ardakani, Matin Raayai, Blaschke, Johannes, Campin, Jean-Michel, Churavy, Valentin, Constantinou, Navid C., Edelman, Alan, Marshall, John, Ramadhan, Ali, Souza, Andre, Ferrari, Raffaele
Climate models must simulate hundreds of future scenarios for hundreds of years at coarse resolutions, and a handful of high-resolution decadal simulations to resolve localized extreme events. Using Oceananigans.jl, written from scratch in Julia, we
Externí odkaz:
http://arxiv.org/abs/2309.06662
Autor:
Wagner, Gregory LeClaire, Hillier, Adeline, Constantinou, Navid C., Silvestri, Simone, Souza, Andre, Burns, Keaton, Hill, Chris, Campin, Jean-Michel, Marshall, John, Ferrari, Raffaele
We describe CATKE, a parameterization for fluxes associated with small-scale or "microscale" ocean turbulent mixing on scales between 1 and 100 meters. CATKE uses a downgradient formulation that depends on a prognostic turbulent kinetic energy (TKE)
Externí odkaz:
http://arxiv.org/abs/2306.13204
Autor:
Ong, Ellie Q. Y., Doddridge, Edward, Constantinou, Navid C., Hogg, Andrew McC., England, Matthew H.
The structure of the Antarctic Slope Current at the continental shelf is crucial in governing the poleward transport of warm water. Canyons on the continental slope may provide a pathway for warm water to cross the slope current and intrude onto the
Externí odkaz:
http://arxiv.org/abs/2304.13225
Publikováno v:
J. Phys. Oceanogr., vol. 53(10), p. 2375-2391, 2023
Gyres are central features of large-scale ocean circulation and are involved in transporting tracers such as heat, nutrients, and carbon-dioxide within and across ocean basins. Traditionally, the gyre circulation is thought to be driven by surface wi
Externí odkaz:
http://arxiv.org/abs/2301.11474
We report a numerical study of horizontal convection (HC) at Prandtl number $Pr = 1$, with both no-slip and free-slip boundary conditions. We obtain 2D and 3D solutions and determine the relation between the Rayleigh number $Ra$ and the Nusselt numbe
Externí odkaz:
http://arxiv.org/abs/2301.03122
Regularising the parameter matrices of neural networks is ubiquitous in training deep models. Typical regularisation approaches suggest initialising weights using small random values, and to penalise weights to promote sparsity. However, these widely
Externí odkaz:
http://arxiv.org/abs/2212.12086
Studies of ocean surface transport often invoke the "Eulerian-mean hypothesis": that wave-agnostic general circulation models neglecting explicit surface waves effects simulate the Eulerian-mean ocean velocity time-averaged over surface wave oscillat
Externí odkaz:
http://arxiv.org/abs/2210.08552
Publikováno v:
J. Phys. Oceanogr., vol. 52(5), 907-916, 2022
Arctic icebergs, unconstrained sea ice floes, oil slicks, mangrove drifters, lost cargo containers, and other flotsam are known to move at 2-4% of the prevailing wind velocity relative to the water, despite vast differences in the material properties
Externí odkaz:
http://arxiv.org/abs/2201.12688