YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of Physical Oceanography
    • View Item
    •   YE&T Library
    • AMS
    • Journal of Physical Oceanography
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Large-Scale Atmospheric Response to the 1964–65 Pacific Equatorial Warming

    Source: Journal of Physical Oceanography:;1972:;Volume( 002 ):;issue: 003::page 212
    Author:
    Bjerknes, J.
    DOI: 10.1175/1520-0485(1972)002<0212:LSARTT>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Time series of surface winds and sea surface temperatures at Canton Island, covering the period 1962?67, are interpreted to show that the major changes in the temperature of the large central and eastern equatorial Pacific area are caused by the varying strength of the easterly winds and inherent variation in upwelling. The feedback effects of the ocean temperature variations upon the atmosphere are illustrated by a comparison of the average November 1964 sounding with that of November 1965. In the cold ocean case (1964) the atmosphere has a pronounced stable layer between 900 and 800 mb, preventing convection and rainfall, and in the warm ocean case (1965) the heat supply from the ocean eliminates the atmospheric stability and activates heavy rainfall. The resulting vertical thermal expansion of the tropical troposphere from 1964 to 1965 is demonstrated by 200-mb topographic maps showing the emergence of two new anticyclonic centers symmetrically straddling the equator at the longitude of the maximum ocean warming. The same tropospheric heating can be seen to have been carried far eastward by the upper tropospheric winds, although with diminishing amplitude. A side effect of the widespread warming of the tropical belt of the atmosphere shows up in the increase of exchange of angular momentum with the neighboring subtropical belt, whereby the subtropical westerly jet strengthens in 1965 compared to 1964 all the way from the central Pacific to the eastern Mediterranean. The implications of the described ocean-atmosphere interaction for interannual climatic change, and the possible forecasting thereof, are mentioned. It is stressed that climatic forecasting will call for extensive additional coordinated research by oceanographers and meteorologists.
    • Download: (1.189Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Large-Scale Atmospheric Response to the 1964–65 Pacific Equatorial Warming

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4162075
    Collections
    • Journal of Physical Oceanography

    Show full item record

    contributor authorBjerknes, J.
    date accessioned2017-06-09T14:43:34Z
    date available2017-06-09T14:43:34Z
    date copyright1972/07/01
    date issued1972
    identifier issn0022-3670
    identifier otherams-25306.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4162075
    description abstractTime series of surface winds and sea surface temperatures at Canton Island, covering the period 1962?67, are interpreted to show that the major changes in the temperature of the large central and eastern equatorial Pacific area are caused by the varying strength of the easterly winds and inherent variation in upwelling. The feedback effects of the ocean temperature variations upon the atmosphere are illustrated by a comparison of the average November 1964 sounding with that of November 1965. In the cold ocean case (1964) the atmosphere has a pronounced stable layer between 900 and 800 mb, preventing convection and rainfall, and in the warm ocean case (1965) the heat supply from the ocean eliminates the atmospheric stability and activates heavy rainfall. The resulting vertical thermal expansion of the tropical troposphere from 1964 to 1965 is demonstrated by 200-mb topographic maps showing the emergence of two new anticyclonic centers symmetrically straddling the equator at the longitude of the maximum ocean warming. The same tropospheric heating can be seen to have been carried far eastward by the upper tropospheric winds, although with diminishing amplitude. A side effect of the widespread warming of the tropical belt of the atmosphere shows up in the increase of exchange of angular momentum with the neighboring subtropical belt, whereby the subtropical westerly jet strengthens in 1965 compared to 1964 all the way from the central Pacific to the eastern Mediterranean. The implications of the described ocean-atmosphere interaction for interannual climatic change, and the possible forecasting thereof, are mentioned. It is stressed that climatic forecasting will call for extensive additional coordinated research by oceanographers and meteorologists.
    publisherAmerican Meteorological Society
    titleLarge-Scale Atmospheric Response to the 1964–65 Pacific Equatorial Warming
    typeJournal Paper
    journal volume2
    journal issue3
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1972)002<0212:LSARTT>2.0.CO;2
    journal fristpage212
    journal lastpage217
    treeJournal of Physical Oceanography:;1972:;Volume( 002 ):;issue: 003
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian