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pro vyhledávání: '"Hogg, Andrew"'
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
Autor:
Langham, Jake, Hogg, Andrew J.
When turbulent flow is laden with negatively buoyant particles, their mean distribution over the direction of gravity can induce stable density gradients that penalize turbulent fluctuations. This effect is studied numerically for shear-driven flow w
Externí odkaz:
http://arxiv.org/abs/2310.08508
We derive general depth-integrated model equations for overland flows featuring the evolution of suspended sediment that may be eroded from or deposited onto the underlying topography ('morphodynamics'). The resulting equations include geometric corr
Externí odkaz:
http://arxiv.org/abs/2306.16185
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
The collision of a gravitationally-driven horizontal current with a barrier following release from a confining lock is investigated using a shallow water model of the motion, together with a sophisticated boundary condition capturing the local intera
Externí odkaz:
http://arxiv.org/abs/2210.07981
Autor:
Langham, Jake, Hogg, Andrew J.
We analyze the linear stability of monoclinal traveling waves on a constant incline, which connect uniform flowing regions of differing depths. The classical shallow-water equations are employed, subject to a general resistive drag term. This approac
Externí odkaz:
http://arxiv.org/abs/2202.01166
Publikováno v:
J. Climate, vol. 34 (15), 6175-6189, 2021
Atmosphere and ocean are coupled via air-sea interactions. The atmospheric conditions fuel the ocean circulation and its variability, but the extent to which ocean processes can affect the atmosphere at decadal time scales remains unclear. In particu
Externí odkaz:
http://arxiv.org/abs/2012.08025
Publikováno v:
J. Fluid Mech. 916 (2021) A31
It is increasingly common for models of shallow-layer overland flows to include equations for the evolution of the underlying bed (morphodynamics) and the motion of an associated sedimentary phase. We investigate the linear stability properties of th
Externí odkaz:
http://arxiv.org/abs/2007.15989
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