YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of Climate
    • View Item
    •   YE&T Library
    • AMS
    • Journal of Climate
    • 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

    A Description of a 1260-Year Control Integration with the Coupled ECHAM1/LSG General Circulation Model

    Source: Journal of Climate:;1997:;volume( 010 ):;issue: 007::page 1525
    Author:
    von Storch, Jin-Song
    ,
    Kharin, Viatcheslav V.
    ,
    Cubasch, Ulrich
    ,
    Hegerl, Gabriele C.
    ,
    Schriever, Dierk
    ,
    von Storch, Hans
    ,
    Zorita, Eduardo
    DOI: 10.1175/1520-0442(1997)010<1525:ADOAYC>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: A 1260-yr integration generated by the ECHAM1/LSG (Large Scale Geostrophic) coupled atmosphere?ocean general circulation model is analyzed in this paper. The analysis focuses on the climate drift and on the variations of the coupled atmosphere?ocean system after the initial climate drift has essentially died out. The initial drift is induced, to a large extent, by the applied heat flux correction, which has very large spatially fixed values of upward heat flux in the polar regions, in particular along the Antarctic coast. The globally integrated freshwater flux becomes unbalanced during the integration, due to the changes in the snow accumulation rate over Greenland and Antarctica. The resulting net upward freshwater flux induces a linear trend in the salinity of the upper ocean. The drift of temperature and salinity in the deep ocean, which is essentially independent of the boundary condition variations during the coupled integration, is presumably related to the spinup of the deep ocean prior to the coupling. The analysis of the last 810 yr of the integration, which is free from the strong initial drift, suggests that the tropospheric variations are white on timescales longer than 1 yr. The dominant Northern Hemispheric mode resembles the western Atlantic pattern. The dominant tropical and Southern Hemispheric modes are essentially zonally symmetric. All these modes can be found on both short (1 yr) and long (15 yr) timescales. For the oceanic variations, the spatial distribution of the total variance and the dominant modes and the relationships between these modes are studied. For the horizontal barotropic streamfunction, the most dominant mode describes an anomalous westward (eastward) circumpolar flow together with clockwise (anticlockwise) circulation in the Southern Atlantic and southeast of South Africa and in the Southern Pacific. For the zonally averaged meridional circulations the most dominant modes of variability describe essentially recirculations within each basin.
    • Download: (564.8Kb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      A Description of a 1260-Year Control Integration with the Coupled ECHAM1/LSG General Circulation Model

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4187290
    Collections
    • Journal of Climate

    Show full item record

    contributor authorvon Storch, Jin-Song
    contributor authorKharin, Viatcheslav V.
    contributor authorCubasch, Ulrich
    contributor authorHegerl, Gabriele C.
    contributor authorSchriever, Dierk
    contributor authorvon Storch, Hans
    contributor authorZorita, Eduardo
    date accessioned2017-06-09T15:35:32Z
    date available2017-06-09T15:35:32Z
    date copyright1997/07/01
    date issued1997
    identifier issn0894-8755
    identifier otherams-4800.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4187290
    description abstractA 1260-yr integration generated by the ECHAM1/LSG (Large Scale Geostrophic) coupled atmosphere?ocean general circulation model is analyzed in this paper. The analysis focuses on the climate drift and on the variations of the coupled atmosphere?ocean system after the initial climate drift has essentially died out. The initial drift is induced, to a large extent, by the applied heat flux correction, which has very large spatially fixed values of upward heat flux in the polar regions, in particular along the Antarctic coast. The globally integrated freshwater flux becomes unbalanced during the integration, due to the changes in the snow accumulation rate over Greenland and Antarctica. The resulting net upward freshwater flux induces a linear trend in the salinity of the upper ocean. The drift of temperature and salinity in the deep ocean, which is essentially independent of the boundary condition variations during the coupled integration, is presumably related to the spinup of the deep ocean prior to the coupling. The analysis of the last 810 yr of the integration, which is free from the strong initial drift, suggests that the tropospheric variations are white on timescales longer than 1 yr. The dominant Northern Hemispheric mode resembles the western Atlantic pattern. The dominant tropical and Southern Hemispheric modes are essentially zonally symmetric. All these modes can be found on both short (1 yr) and long (15 yr) timescales. For the oceanic variations, the spatial distribution of the total variance and the dominant modes and the relationships between these modes are studied. For the horizontal barotropic streamfunction, the most dominant mode describes an anomalous westward (eastward) circumpolar flow together with clockwise (anticlockwise) circulation in the Southern Atlantic and southeast of South Africa and in the Southern Pacific. For the zonally averaged meridional circulations the most dominant modes of variability describe essentially recirculations within each basin.
    publisherAmerican Meteorological Society
    titleA Description of a 1260-Year Control Integration with the Coupled ECHAM1/LSG General Circulation Model
    typeJournal Paper
    journal volume10
    journal issue7
    journal titleJournal of Climate
    identifier doi10.1175/1520-0442(1997)010<1525:ADOAYC>2.0.CO;2
    journal fristpage1525
    journal lastpage1543
    treeJournal of Climate:;1997:;volume( 010 ):;issue: 007
    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