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

    Detection and Analysis of an Amplified Warming of the Sahara Desert

    Source: Journal of Climate:;2015:;volume( 028 ):;issue: 016::page 6560
    Author:
    Cook, Kerry H.
    ,
    Vizy, Edward K.
    DOI: 10.1175/JCLI-D-14-00230.1
    Publisher: American Meteorological Society
    Abstract: valuation of three reanalyses (ERA-Interim, NCEP-2, and MERRA) and two observational datasets [CRU and Global Historical Climatology Network (GHCN)] for 1979?2012 demonstrates that the surface temperature of the Sahara Desert has increased at a rate that is 2?4 times greater than that of the tropical-mean temperature over the 34-yr time period. While the response to enhanced greenhouse gas forcing over most of the globe involves the full depth of the atmosphere, with increases in longwave back radiation increasing latent heat fluxes, the dryness of the Sahara surface precludes this response. Changes in the surface heat balance over the Sahara during the analysis period are primarily in the upward and downward longwave fluxes. As a result, the warming is concentrated near the surface, and a desert amplification of the warming occurs. The desert amplification is analogous to the polar amplification of the global warming signal, which is concentrated at the surface, in part, because of the vertical stability of the Arctic atmosphere. Accompanying the amplified surface warming of the Sahara is a strengthening of both the summertime heat low and the African easterly jet and a weakening of the wintertime anticyclone and the low-level Harmattan winds. Potential implications of the desert amplification include decreases in mineral dust aerosols globally, decreases in wintertime cold air surge activity, and increases in Sahel rainfall.
    • Download: (3.654Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Detection and Analysis of an Amplified Warming of the Sahara Desert

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4223436
    Collections
    • Journal of Climate

    Show full item record

    contributor authorCook, Kerry H.
    contributor authorVizy, Edward K.
    date accessioned2017-06-09T17:10:21Z
    date available2017-06-09T17:10:21Z
    date copyright2015/08/01
    date issued2015
    identifier issn0894-8755
    identifier otherams-80533.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4223436
    description abstractvaluation of three reanalyses (ERA-Interim, NCEP-2, and MERRA) and two observational datasets [CRU and Global Historical Climatology Network (GHCN)] for 1979?2012 demonstrates that the surface temperature of the Sahara Desert has increased at a rate that is 2?4 times greater than that of the tropical-mean temperature over the 34-yr time period. While the response to enhanced greenhouse gas forcing over most of the globe involves the full depth of the atmosphere, with increases in longwave back radiation increasing latent heat fluxes, the dryness of the Sahara surface precludes this response. Changes in the surface heat balance over the Sahara during the analysis period are primarily in the upward and downward longwave fluxes. As a result, the warming is concentrated near the surface, and a desert amplification of the warming occurs. The desert amplification is analogous to the polar amplification of the global warming signal, which is concentrated at the surface, in part, because of the vertical stability of the Arctic atmosphere. Accompanying the amplified surface warming of the Sahara is a strengthening of both the summertime heat low and the African easterly jet and a weakening of the wintertime anticyclone and the low-level Harmattan winds. Potential implications of the desert amplification include decreases in mineral dust aerosols globally, decreases in wintertime cold air surge activity, and increases in Sahel rainfall.
    publisherAmerican Meteorological Society
    titleDetection and Analysis of an Amplified Warming of the Sahara Desert
    typeJournal Paper
    journal volume28
    journal issue16
    journal titleJournal of Climate
    identifier doi10.1175/JCLI-D-14-00230.1
    journal fristpage6560
    journal lastpage6580
    treeJournal of Climate:;2015:;volume( 028 ):;issue: 016
    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