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

    Asian Summer Monsoon—ENSO Feedback on the Cane–Zebiak Model ENSO

    Source: Journal of Climate:;1999:;volume( 012 ):;issue: 009::page 2787
    Author:
    Chung, Chul
    ,
    Nigam, Sumant
    DOI: 10.1175/1520-0442(1999)012<2787:ASMEFO>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The Asian summer monsoon heating anomalies are parameterized in terms of the concurrent ENSO SST anomalies and used as additional forcing in the Cane?Zebiak (CZ) Pacific ocean?atmosphere anomaly model. The Asian heating parameterization is developed from the rotated principal component analysis of combined interannual variability of the tropical Pacific SSTs, residually diagnosed tropical diabatic heating at 400 mb (from ECMWF?s analyses), and the 1000-mb tropical winds during the 1979?97 summer months of June, July, and August. Analysis of the 95?000-yr-long model integrations conducted with and without the interactive Asian sector heating anomalies reveals that their influence on the Pacific surface winds leads to increased ENSO occurrence?an extra ENSO event every 20 yr or so. An examination of the ENSO distribution w.r.t. the peak SST anomaly in the eastern equatorial Pacific shows increased El Niño occurrence in the 2.2?3.6 K range (and ?1.0 to ?1.6 K range in case of cold events) along with a modest reduction in the 0.6?1.2 K range, that is, a population shift due to the strengthening of weak El Niños in the monsoon run. The interaction of ENSO-related Asian summer monsoon heating with the CZ model?s ocean?atmosphere also results in a wider period distribution of ENSO variability, but with the El Niño peak phase remaining seasonally locked with the northern winter months. The above modeling results confirm the positive feedback between Asian summer monsoon and ENSO suggested by previous empirical and diagnostic modeling studies; the feedback is generated primarily by the diabatic heating changes in the Asian Tropics.
    • Download: (1.370Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Asian Summer Monsoon—ENSO Feedback on the Cane–Zebiak Model ENSO

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4192857
    Collections
    • Journal of Climate

    Show full item record

    contributor authorChung, Chul
    contributor authorNigam, Sumant
    date accessioned2017-06-09T15:46:14Z
    date available2017-06-09T15:46:14Z
    date copyright1999/09/01
    date issued1999
    identifier issn0894-8755
    identifier otherams-5301.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4192857
    description abstractThe Asian summer monsoon heating anomalies are parameterized in terms of the concurrent ENSO SST anomalies and used as additional forcing in the Cane?Zebiak (CZ) Pacific ocean?atmosphere anomaly model. The Asian heating parameterization is developed from the rotated principal component analysis of combined interannual variability of the tropical Pacific SSTs, residually diagnosed tropical diabatic heating at 400 mb (from ECMWF?s analyses), and the 1000-mb tropical winds during the 1979?97 summer months of June, July, and August. Analysis of the 95?000-yr-long model integrations conducted with and without the interactive Asian sector heating anomalies reveals that their influence on the Pacific surface winds leads to increased ENSO occurrence?an extra ENSO event every 20 yr or so. An examination of the ENSO distribution w.r.t. the peak SST anomaly in the eastern equatorial Pacific shows increased El Niño occurrence in the 2.2?3.6 K range (and ?1.0 to ?1.6 K range in case of cold events) along with a modest reduction in the 0.6?1.2 K range, that is, a population shift due to the strengthening of weak El Niños in the monsoon run. The interaction of ENSO-related Asian summer monsoon heating with the CZ model?s ocean?atmosphere also results in a wider period distribution of ENSO variability, but with the El Niño peak phase remaining seasonally locked with the northern winter months. The above modeling results confirm the positive feedback between Asian summer monsoon and ENSO suggested by previous empirical and diagnostic modeling studies; the feedback is generated primarily by the diabatic heating changes in the Asian Tropics.
    publisherAmerican Meteorological Society
    titleAsian Summer Monsoon—ENSO Feedback on the Cane–Zebiak Model ENSO
    typeJournal Paper
    journal volume12
    journal issue9
    journal titleJournal of Climate
    identifier doi10.1175/1520-0442(1999)012<2787:ASMEFO>2.0.CO;2
    journal fristpage2787
    journal lastpage2807
    treeJournal of Climate:;1999:;volume( 012 ):;issue: 009
    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