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    Possible Feedback of Winter Sea Ice in the Greenland and Barents Seas on the Local Atmosphere

    Source: Monthly Weather Review:;2004:;volume( 132 ):;issue: 007::page 1868
    Author:
    Wu, Bingyi
    ,
    Wang, Jia
    ,
    Walsh, John
    DOI: 10.1175/1520-0493(2004)132<1868:PFOWSI>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Using monthly Arctic sea ice concentration data (1953?95) and the National Centers for Environmental Prediction?National Center for Atmospheric Research (NCEP?NCAR) reanalysis dataset (1958?99), possible feedbacks of sea ice variations in the Greenland and Barents Seas to the atmosphere are investigated. Winter (February?April) sea ice anomalies in the Greenland and Barents Seas display important feedback influences on the atmospheric boundary layer in terms of both thermodynamic and dynamic processes. The vertical gradients of potential pseudo-equivalent temperature (?se) between 850 and 700 hPa are greater over sea ice than over open water, implying that a more stable boundary layer forms below 700 hPa over sea ice. The effects of temperature advection are shown to account for a relatively small percentage of the temperature variance in area of sea ice feedbacks. Horizontal and vertical variations of the effects of sea ice on temperature in the Nordic and Barents Seas create the potential for dynamical influences on the atmospheric boundary layer through vertical motion induced by the pressure anomalies in the boundary layer.
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      Possible Feedback of Winter Sea Ice in the Greenland and Barents Seas on the Local Atmosphere

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4205415
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    • Monthly Weather Review

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    contributor authorWu, Bingyi
    contributor authorWang, Jia
    contributor authorWalsh, John
    date accessioned2017-06-09T16:15:31Z
    date available2017-06-09T16:15:31Z
    date copyright2004/07/01
    date issued2004
    identifier issn0027-0644
    identifier otherams-64314.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4205415
    description abstractUsing monthly Arctic sea ice concentration data (1953?95) and the National Centers for Environmental Prediction?National Center for Atmospheric Research (NCEP?NCAR) reanalysis dataset (1958?99), possible feedbacks of sea ice variations in the Greenland and Barents Seas to the atmosphere are investigated. Winter (February?April) sea ice anomalies in the Greenland and Barents Seas display important feedback influences on the atmospheric boundary layer in terms of both thermodynamic and dynamic processes. The vertical gradients of potential pseudo-equivalent temperature (?se) between 850 and 700 hPa are greater over sea ice than over open water, implying that a more stable boundary layer forms below 700 hPa over sea ice. The effects of temperature advection are shown to account for a relatively small percentage of the temperature variance in area of sea ice feedbacks. Horizontal and vertical variations of the effects of sea ice on temperature in the Nordic and Barents Seas create the potential for dynamical influences on the atmospheric boundary layer through vertical motion induced by the pressure anomalies in the boundary layer.
    publisherAmerican Meteorological Society
    titlePossible Feedback of Winter Sea Ice in the Greenland and Barents Seas on the Local Atmosphere
    typeJournal Paper
    journal volume132
    journal issue7
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(2004)132<1868:PFOWSI>2.0.CO;2
    journal fristpage1868
    journal lastpage1876
    treeMonthly Weather Review:;2004:;volume( 132 ):;issue: 007
    contenttypeFulltext
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