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    Buoyancy Flux at Ocean Weather Station Bravo

    Source: Journal of Physical Oceanography:;2002:;Volume( 032 ):;issue: 002::page 458
    Author:
    Sathiyamoorthy, S.
    ,
    Moore, G. W. K.
    DOI: 10.1175/1520-0485(2002)032<0458:BFAOWS>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Deep water formation at high latitudes is believed to be the driving mechanism behind the ocean's thermohaline circulation. The exchange of heat and water with the atmosphere causes the density of the surface waters to change, with subsequent downwelling and upwelling resulting as the system relaxes toward convective equilibrium. The characteristics of this atmosphere?ocean exchange are examined by studying the temporal variability of the buoyancy flux at OWS Bravo, a location where deep water formation is known to occur. The authors find that there is significant high-frequency variability in the buoyancy flux attributable to the passage of synoptic weather systems, variability that is masked by monthly analyses. At high latitudes, precipitation plays a significant role in the buoyancy flux. If it is ignored, the buoyancy loss is overestimated (positive coordinate is downward). Precipitation also causes the buoyancy flux to become positive during the passage of a cyclone. The timescale for this change in buoyancy flux is found to be similar to the timescale for the convective plumes in the ocean, suggesting a link between the two. In addition, a strong negative correlation is found to exist between the sensible heat flux at Bravo and the North Atlantic Oscillation.
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      Buoyancy Flux at Ocean Weather Station Bravo

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4166871
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    contributor authorSathiyamoorthy, S.
    contributor authorMoore, G. W. K.
    date accessioned2017-06-09T14:55:04Z
    date available2017-06-09T14:55:04Z
    date copyright2002/02/01
    date issued2002
    identifier issn0022-3670
    identifier otherams-29623.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4166871
    description abstractDeep water formation at high latitudes is believed to be the driving mechanism behind the ocean's thermohaline circulation. The exchange of heat and water with the atmosphere causes the density of the surface waters to change, with subsequent downwelling and upwelling resulting as the system relaxes toward convective equilibrium. The characteristics of this atmosphere?ocean exchange are examined by studying the temporal variability of the buoyancy flux at OWS Bravo, a location where deep water formation is known to occur. The authors find that there is significant high-frequency variability in the buoyancy flux attributable to the passage of synoptic weather systems, variability that is masked by monthly analyses. At high latitudes, precipitation plays a significant role in the buoyancy flux. If it is ignored, the buoyancy loss is overestimated (positive coordinate is downward). Precipitation also causes the buoyancy flux to become positive during the passage of a cyclone. The timescale for this change in buoyancy flux is found to be similar to the timescale for the convective plumes in the ocean, suggesting a link between the two. In addition, a strong negative correlation is found to exist between the sensible heat flux at Bravo and the North Atlantic Oscillation.
    publisherAmerican Meteorological Society
    titleBuoyancy Flux at Ocean Weather Station Bravo
    typeJournal Paper
    journal volume32
    journal issue2
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(2002)032<0458:BFAOWS>2.0.CO;2
    journal fristpage458
    journal lastpage474
    treeJournal of Physical Oceanography:;2002:;Volume( 032 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian