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    Detection, Structure, and Origin of Extreme Anomalies in a Western Atlantic Oceanographic Section

    Source: Journal of Physical Oceanography:;1986:;Volume( 016 ):;issue: 003::page 591
    Author:
    Ebbesmeyer, Curtis C.
    ,
    Taft, Bruce A.
    ,
    Mcwilliams, James C.
    ,
    Shen, Colin Y.
    ,
    Riser, Stephen C.
    ,
    Rossby, H. Thomas
    ,
    Biscaye, Pierre E.
    ,
    Östlund, H. Gote
    DOI: 10.1175/1520-0485(1986)016<0591:DSAOOE>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Ten anomalous water parcels were detected in the water column of a western Atlantic oceanographic section (0?5550 m; 70°W; 23?33°N). The parcels had extreme properties lying either two standard deviations from historical mean values, or estimated origins lying 2000 km from the oceanographic section. Detection, structure, and origin of the parcels were determined from analyses on isobaric and isopycnal surfaces using eight kinds of measurements temperature, salinity, oxygen, light scattering, silicate, phosphate, nitrate, and tritium. The parcels originated from seven of the major water masses comprising the North Atlantic Ocean. As observed along the oceanographic section the parcels had the following average (range) characteristics vertical pressure extent = 650 db (100?150 db); horizontal extent = 130 km (30?260 km); and distance to origin = 2300 km (400?5200 km). A population density equaling approximately one parcel per 100 km was obtained as the number of parcels (10) divided by the length of the cruise track (1080 km). This density suggests that 103?104 parcels may populate the North Atlantic Ocean. The population appears to be sufficiently large that geographic distributions of anomalous water parcels may eventually reveal general circulatory patterns.
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      Detection, Structure, and Origin of Extreme Anomalies in a Western Atlantic Oceanographic Section

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    contributor authorEbbesmeyer, Curtis C.
    contributor authorTaft, Bruce A.
    contributor authorMcwilliams, James C.
    contributor authorShen, Colin Y.
    contributor authorRiser, Stephen C.
    contributor authorRossby, H. Thomas
    contributor authorBiscaye, Pierre E.
    contributor authorÖstlund, H. Gote
    date accessioned2017-06-09T14:47:50Z
    date available2017-06-09T14:47:50Z
    date copyright1986/03/01
    date issued1986
    identifier issn0022-3670
    identifier otherams-26981.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4163935
    description abstractTen anomalous water parcels were detected in the water column of a western Atlantic oceanographic section (0?5550 m; 70°W; 23?33°N). The parcels had extreme properties lying either two standard deviations from historical mean values, or estimated origins lying 2000 km from the oceanographic section. Detection, structure, and origin of the parcels were determined from analyses on isobaric and isopycnal surfaces using eight kinds of measurements temperature, salinity, oxygen, light scattering, silicate, phosphate, nitrate, and tritium. The parcels originated from seven of the major water masses comprising the North Atlantic Ocean. As observed along the oceanographic section the parcels had the following average (range) characteristics vertical pressure extent = 650 db (100?150 db); horizontal extent = 130 km (30?260 km); and distance to origin = 2300 km (400?5200 km). A population density equaling approximately one parcel per 100 km was obtained as the number of parcels (10) divided by the length of the cruise track (1080 km). This density suggests that 103?104 parcels may populate the North Atlantic Ocean. The population appears to be sufficiently large that geographic distributions of anomalous water parcels may eventually reveal general circulatory patterns.
    publisherAmerican Meteorological Society
    titleDetection, Structure, and Origin of Extreme Anomalies in a Western Atlantic Oceanographic Section
    typeJournal Paper
    journal volume16
    journal issue3
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1986)016<0591:DSAOOE>2.0.CO;2
    journal fristpage591
    journal lastpage612
    treeJournal of Physical Oceanography:;1986:;Volume( 016 ):;issue: 003
    contenttypeFulltext
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