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upwelling
upwelling describes the process in which water from deep down is brought up to the surface along divergent fronts in the open ocean, in the lee of headlands along coasts, and as a result of the interaction between Coriolis force and the effects of alongshore winds. Where the upwelled water comes from below the thermocline, the concentrations of the nutrients needed to stimulate the growth of the marine plant phytoplankton are enhanced, so rich communities of plankton and fish develop. Upwelling occurs regularly along the coasts of California, Peru, north-west and south-west Africa, and in the north-west Arabian Sea, so these regions are major centres for commercial fisheries.
M. V. Angel |
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Cite this article
"upwelling." The Oxford Companion to Ships and the Sea. 2006. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "upwelling." The Oxford Companion to Ships and the Sea. 2006. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O225-upwelling.html "upwelling." The Oxford Companion to Ships and the Sea. 2006. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O225-upwelling.html |
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upwelling
upwelling In oceans or larger lakes, a water current, or movement of surface water produced by wind, which brings colder water, loaded with nutrient, to the surface from a lower depth. Ocean upwellings occur off Peru, California, W. Africa, and Namibia, and increase the nutrient content of the surface waters, leading to an abundance of marine and bird life. Upwelling also occurs in the open oceans where surface currents diverge, as deep waters rise to the surface to replace the departing waters, and all along the equator as a result of the effects of the NE and SE trade winds.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "upwelling." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "upwelling." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-upwelling.html AILSA ALLABY and MICHAEL ALLABY. "upwelling." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-upwelling.html |
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upwelling
upwelling In oceans or large lakes, a water current or movement of surface water produced by wind, which brings colder water, loaded with nutrient, to the surface from a lower depth. Ocean upwellings occur off Peru, California, West Africa, and Namibia, and increase the nutrient content of the surface waters, leading to an abundance of marine and bird life. Upwelling also occurs in the open oceans where surface currents diverge, as deep waters rise to the surface to replace the departing waters, and all along the equator as a result of the effects of the trade winds.
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Cite this article
MICHAEL ALLABY. "upwelling." A Dictionary of Ecology. 2004. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "upwelling." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O14-upwelling.html MICHAEL ALLABY. "upwelling." A Dictionary of Ecology. 2004. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-upwelling.html |
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upwelling
upwelling
•brambling, rambling
•hatchling • brandling
•gangling, wrangling
•crackling • sapling
•fatling, Gatling
•mantling, scantling
•darling, sparling, starling
•sampling • starveling
•dwelling, misspelling, self-propelling, spelling, swelling, telling, upwelling
•trembling • vetchling • fledgling
•nestling, wrestling
•storytelling
•failing, grayling, mailing, paling, railing, sailing, tailing, unavailing, veiling, wailing
•changeling • boardsailing
•parasailing
•appealing, ceiling, Darjeeling, dealing, feeling, Keeling, peeling, revealing, self-sealing, shieling, wheeler-dealing, wheeling
•reedling, seedling
•weakling • Riesling
•deskilling, filling, grilling, killing, Pilling, quilling, Schilling, self-fulfilling, shilling, Trilling, unfulfilling, willing
•sibling • kindling • piffling
•inkling, sprinkling, tinkling
•Kipling, stripling
•princeling • witling
•brisling, quisling
•painkilling
•filing, piling, reviling, tiling, unsmiling
•motorcycling • hairstyling • rockling
•gosling
•calling, Pauling
•lordling • porkling
•cowling, fowling
•foundling, groundling
•ruling, schooling
•intercooling • wirepulling
•grumbling
•buckling, duckling, Suckling
•youngling • coupling • dumpling
•puzzling • swashbuckling
•shearling, yearling
•hireling
•towelling (US toweling)
•gruelling (US grueling)
•babbling, dabbling
•marbling • scribbling
•mumbling, rumbling
•sanderling • middling • doodling
•underling • rifling • shuffling
•strangling • fingerling
•enamelling (US enameling)
•rustling • rattling
•bitterling, chitterling
•titling
•sterling, Stirling
•nurseling, nursling
•earthling
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Cite this article
"upwelling." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "upwelling." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O233-upwelling.html "upwelling." Oxford Dictionary of Rhymes. 2007. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-upwelling.html |
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