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Upwelling age: an indicator of local tendency for coastal upwelling
Journal of Oceanography, 2011A proxy named “upwelling age”, defined as the ratio of wind time scale to “advection time”, was developed to quantify the local tendency for coastal upwelling. The formulation of the “advection time” was derived from Ekman theory. A 3D numerical model was used to validate and refine the theoretical formula by simulating a total of 30 cases of different
Jiang, Lide +2 more
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A documentary proxy for coastal upwelling
2023Coastal upwelling is a process in which sea water from intermediate depths emerges along the west coast of continents in response to the intensity of the alongshore component of the wind. These areas are economically relevant as upwelled water is rich in nutrients, creating regions of great interest for fisheries.Quantifying upwelling intensity at ...
David Gallego +4 more
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The Peruvian Coastal Upwelling System
2001The Peruvian coastal upwelling ecosystem is part of an upwelling area that extends between 4°S and about 40°S along the western coast of South America (Guillen 1983), with high productivity originating from equatorial upwelling south of the Galapagos Islands.
J. Tarazona, W. Arntz
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Chapter 6 Coastal Upwelling Dynamics
1989Publisher Summary This chapter describes the results of two experiments that are explicitly designed to elucidate the physical control of mesoscale biomass and nutrient patterns in a region where upwelling processes may be quasi-two-dimensional. Although the study region (the mid-Washington shelf) exhibits significant alongshore gradients in physical
A.J. Hermann +3 more
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A Cyclesonde View of Coastal Upwelling
Journal of Physical Oceanography, 1976Abstract In August 1973, 320 vertical profiles of temperature and horizontal velocity were recorded during a 64 h period by an array of three Cyclesondes in the coastal upwelling region off Oregon. The mean interior along-shore velocity was geostrophic and a linear function of density, with a near-surface, equatorward jet at mid-shelf, and a poleward ...
Walter R. Johnson +2 more
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Upwelling Bays: How Coastal Upwelling Controls Circulation, Habitat, and Productivity in Bays
Annual Review of Marine Science, 2020Bays in coastal upwelling regions are physically driven and biochemically fueled by their interaction with open coastal waters. Wind-driven flow over the shelf imposes a circulation in the bay, which is also influenced by local wind stress and thermal bay–ocean density differences.
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1983
Steady wind parallel to the coast generates upwelling and the influence of the spatial structure of the wind or the coastal indentattions must be taken into account in the determination of the lifting of the thermocline. A shallow water model is used to display the response of the ocean around a cape. The response to steady wind forcing is described in
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Steady wind parallel to the coast generates upwelling and the influence of the spatial structure of the wind or the coastal indentattions must be taken into account in the determination of the lifting of the thermocline. A shallow water model is used to display the response of the ocean around a cape. The response to steady wind forcing is described in
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Coastal upwelling and coastal jets in continuously stratified seas
Chinese Journal of Oceanology and Limnology, 1987Nonlinear numerical models of continuously stratified seas are developed for vertical sections to study the mechanism of coastal upwelling and coastal jets in two kinds of seas: the so-called finite or closed sea bounded by two vertical coastal coasts, without elevation of sea surface, but with a flat bottom; and the semi-infinite sea bounded by only ...
Jing Zhenhua +3 more
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The Peruvian-Chilean Coastal Upwelling System
2016This chapter describes the Peruvian-Chilean coastal upwelling system which is by far the most productive system in terms of pelagic fish among the Big Four coastal upwelling systems—a feature that is known as the Peruvian Puzzle. Also discussed are fluctuations of fish and bird abundance in the context of the El Nino Southern Oscillation, overfishing ...
Jochen Kämpf, Piers Chapman
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