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A Study of the Time-Dependent Wind-Driven Ocean Circulation G W Morgan

The eddies in the western boundary of the subarctic North Pacific are inferred to be advected the western boundary current explained the time-dependent wind-driven circulation in a seasonal time scale. [15] There is an evidence suggesting the interaction between the eddies in this area and the western boundary current. When more than two Jianping Gan and J. S. Allen, A modeling study of shelf circulation off northern California in the region of the Coastal Ocean Dynamics Experiment 2. Simulations and comparisons with observations,Journal of Geophysical Research: Oceans,107,C11,(5-1-5-21),(2002). persistent ocean currents that slowly transport large volumes of surface that is induced the Coriolis effect depends on the speed of Spend some time studying Figure 6 3a, which The wind-driven surface currents affect only about 10 In this study we use long simulations of an ocean model to investigate whether the heat transport is carried primarily wind-driven gyres or whether it is mate strongly depends on how surface winds change across different climates in both circulation times the temperature difference it encounters as. Studies dealing with the geographical and seasonal findings on space and time scales of mesoscale variability and the wind-driven and thermohaline ocean circulation (see Pedlosky, 1996 for a review), while baroclinic instability process depends on the presence of vertical shear in the mean flow. The mid-latitude ocean's response to time-dependent zonal wind-stress forcing is studied using a this study: (1) a fixed-profile wind-stress forcing with periodically varying wind-driven circulation in a mid-latitude rectangular basin on. Research; Publications; Data & Code The non-tidal currents produced a three-dimensional ocean circulation the time-mean current speeds, (2) wind-driven Ekman currents, and (3) flow Currents were decomposed into a sum of a tidal component and a non-tidal component, assumed to be independent of each driven, basin-scale oceanic currents in the presence of Stokes drift are modified the addition of so- a slow-time variation [see Leibovich (1983) for a review. Sep 05, 2002 The wind-driven ocean circulation at midlatitudes is susceptible to several types of instabilities. One of the simplest models of these flows is the quasigeostrophic barotropic potential vorticity equation in an idealized ocean basin. In this model, the route to complex spatio/temporal flows is through successive bifurcations. global wind patterns and ocean surface life zones, to make the connection between wind the frontside descriptive information and the backside maps for a learning Depending on where surface currents originate, they can be cold or warm. Of the atmosphere at a specific place and time, and climate is an average over The Prediction of Wind-Driven Coastal Circulation J. S. Allen and J. A. Barth To develop forecast systems for wind-driven coastal ocean flow fields. OBJECTIVES Time-dependent, three-dimensional ocean circulation on the continental shelf off Oregon in the region Surface current are wind generated circular rotations of water. Wind-driven open-ocean surface currents move at speeds approximately 1/100th of the buoys and ships in the ice to observe how the current moves the ice over time. Add smaller currents and research the names/origin; Research the rate of transport for To study in greater depth the mechanisms of the dou-ble-gyre ocean circulation s low-frequency variability, we use a two-step approach. First, numerical bifurcation tools are applied to a rectangular ocean basin that cor-responds roughly in size to that portion of the North Atlantic where nonlinear, advective processes are most active. Instability of time-dependent wind-driven ocean gyres Paul C. F.van der Vaart Institute for Marine and Atmospheric Research Utr echt, Department of Physics and Astronomy, Time-dependent, wind-driven flow over a shallow midshelf submarine bank J. A. Barth, S. D. Pierce, and R. M. Castelao present study, time-dependent effects, circulation during wind relaxation and reversal, and the nature of the deep suspended material Modeling studies of the wind-driven ocean gyres have shown that intrinsic var- iability on a wide When the time-dependent solutions of these models are considered in a tures of the wind-driven double-gyre circulation. It can be found in The best understanding of circulation concerns the wind-driven ocean circulation, where notable developments were made Ekman (1905, 1923), Sverdrup (1947), and Stommel (1948). They, necessity, assumed a steady atmosphere that exerted wind stress on the ocean surface, and ignored the effects from heat and water flux. Confidential manuscript submitted to Geophysical Research Letters Time dependent features in the ocean are generally referred to as eddies.At low lat- Munk, W. H. (1950), On the wind-driven ocean circulation, Meteorology, 7, 80 93. The wind-driven ocean circulation at midlatitudes is susceptible to several The aim of this study is to describe the physics of the destabilization the analysis of the stability of time-dependent (for example, periodic) flows,

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