Subduction in the subtropical gyre
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Published by Woods Hole Oceanographic Institution in Woods Hole, Mass .
Written in English


  • Oceanography -- Research -- North Atlantic Ocean.,
  • Water masses -- North Atlantic Ocean.

Book details:

Edition Notes

Statementby Julie S. Pallant ... [et al.]
SeriesWHOI -- 95-13., WHOI (Series) -- 95-13.
ContributionsPallant, Julie S., Woods Hole Oceanographic Institution.
The Physical Object
Pagination213 p. :
Number of Pages213
ID Numbers
Open LibraryOL15417766M

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In this paper we estimate the flux rates into the thermocline of the southern subtropical gyre that have to supply also the northern hemisphere. The permanent thermocline of the ocean is ventilated through subduction, the transfer of water from the near surface layer through the base of the mixed layer (Woods, ; Cushman-Roisin, ).Cited by: Ocean gyres are known to collect pollutants. The Great Pacific Garbage Patch in the central North Pacific Ocean is a gyre of marine debris particles and floating trash halfway between Hawaii and California, and extends over an indeterminate area of widely varying range depending on the degree of plastic concentration used to define it. An estima metric tons of plastic . The Subtropical Gyre is also a subduction region in which water from the mixed layer is pumped into the permanent thermocline through Ekman convergence driven . The North Pacific Gyre (NPG) or North Pacific Subtropical Gyre (NPSG), located in the northern Pacific Ocean, is one of the five major oceanic gyre covers most of the northern Pacific is the largest ecosystem on Earth, located between the equator and 50° N latitude, and comprising 20 million square kilometers. The gyre has a clockwise circular pattern and is .

PDF | On , R.G. Williams and others published Ocean Subduction | Find, read and cite all the research you need on ResearchGateAuthor: Richard G. Williams. Subtropical gyre variability as seen from ocean colour satellites has been analysed in previous studies. McClain et al. () showed that the oligotrophic waters of the North Pacific and North Atlantic gyres were observed to be expanding, while those of the SouthCited by:   The annual subduction rate in the South Indian Ocean was calculated by analyzing Simple Ocean Data Assimilation (SODA) outputs in the period of – The subduction rate census for potential density classes showed a peak corresponding to Indian Ocean subtropical mode water (IOSTMW) in the southwestern part of the South Indian Ocean subtropical by: 4. The Indian Ocean Gyre is actually two distinct tropical gyres—the northern and southern Indian Ocean Gyres. Most of the world’s major gyres are subtropical gyres. These form between the polar and equatorial regions of Earth. Subtropical gyres circle areas beneath regions of high atmospheric pressure.

  The South Atlantic Subtropical Front, associated with the eastward-flowing South Atlantic Current, separates the colder, nutrient-rich waters of the subpolar gyre from the warmer, nutrient-poor waters of the subtropical gyre. Perturbations to the quasi-geostrophic, eastward flow generate meanders and filaments which induce cross-frontal exchange of water by: 1. The North Pacific Subtropical Gyre (NPSG) is the largest contiguous ecosystem on earth. In oceanography, a subtropical gyre is a ring-like system of ocean currents rotating clockwise in the Northern Hemisphere and counterclockwise in the Southern Hemisphere caused by the Coriolis generally form in large open ocean areas that lie between land masses. Subpolar gyre, an area of cyclonic ocean circulation that sits beneath a persistent region of low atmospheric pressure. In contrast to subtropical gyres, the movement of ocean water within the Ekman layer of subpolar gyres forces upwelling and surface water divergence. In .   Subduction, in the form of gravitational "slab pull," is thought to be the largest force driving plate tectonics. At a certain depth, the high pressure turns the basalt in the slab to a denser rock, eclogite (that is, a feldspar-pyroxene mixture becomes garnet-pyroxene). This makes the slab even more eager to : Andrew Alden.