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    Interdecadal Variations of the Silk Road Pattern

    Source: Journal of Climate:;2017:;volume( 030 ):;issue: 024::page 9915
    Author:
    Wang, Lin;Xu, Peiqiang;Chen, Wen;Liu, Yong
    DOI: 10.1175/JCLI-D-17-0340.1
    Publisher: American Meteorological Society
    Abstract: AbstractBased on several reanalysis and observational datasets, this study suggests that the Silk Road pattern (SRP), a major teleconnection pattern stretching across Eurasia in the boreal summer, shows clear interdecadal variations that explain approximately 50% of its total variance. The interdecadal SRP features a strong barotropic wave train along the Asian subtropical jet, resembling its interannual counterpart. Additionally, it features a second weak wave train over the northern part of Eurasia, leading to larger meridional scale than its interannual counterpart. The interdecadal SRP contributes approximately 40% of the summer surface air temperature?s variance with little uncertainty and 10%?20% of the summer precipitation?s variance with greater uncertainty over large domains of Eurasia. The interdecadal SRP shows two regime shifts in 1972 and 1997. The latter shift explains over 40% of the observed rainfall reduction over northeastern Asia and over 40% of the observed warming over eastern Europe, western Asia, and northeastern Asia, highlighting its importance to the recent decadal climate variations over Eurasia. The Atlantic multidecadal oscillation (AMO) does not show a significant linear relationship with the interdecadal SRP. However, the Monte Carlo bootstrapping resampling analysis suggests that the positive (negative) phases of the spring and summer AMO significantly facilitate the occurrence of negative (positive) phases of the interdecadal SRP, implying plausible prediction potentials for the interdecadal variations of the SRP. The reported results are insensitive to the long-term trends in datasets and thereby have little relevance to externally forced climate change.
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      Interdecadal Variations of the Silk Road Pattern

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    contributor authorWang, Lin;Xu, Peiqiang;Chen, Wen;Liu, Yong
    date accessioned2018-01-03T11:01:48Z
    date available2018-01-03T11:01:48Z
    date copyright9/11/2017 12:00:00 AM
    date issued2017
    identifier otherjcli-d-17-0340.1.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4246268
    description abstractAbstractBased on several reanalysis and observational datasets, this study suggests that the Silk Road pattern (SRP), a major teleconnection pattern stretching across Eurasia in the boreal summer, shows clear interdecadal variations that explain approximately 50% of its total variance. The interdecadal SRP features a strong barotropic wave train along the Asian subtropical jet, resembling its interannual counterpart. Additionally, it features a second weak wave train over the northern part of Eurasia, leading to larger meridional scale than its interannual counterpart. The interdecadal SRP contributes approximately 40% of the summer surface air temperature?s variance with little uncertainty and 10%?20% of the summer precipitation?s variance with greater uncertainty over large domains of Eurasia. The interdecadal SRP shows two regime shifts in 1972 and 1997. The latter shift explains over 40% of the observed rainfall reduction over northeastern Asia and over 40% of the observed warming over eastern Europe, western Asia, and northeastern Asia, highlighting its importance to the recent decadal climate variations over Eurasia. The Atlantic multidecadal oscillation (AMO) does not show a significant linear relationship with the interdecadal SRP. However, the Monte Carlo bootstrapping resampling analysis suggests that the positive (negative) phases of the spring and summer AMO significantly facilitate the occurrence of negative (positive) phases of the interdecadal SRP, implying plausible prediction potentials for the interdecadal variations of the SRP. The reported results are insensitive to the long-term trends in datasets and thereby have little relevance to externally forced climate change.
    publisherAmerican Meteorological Society
    titleInterdecadal Variations of the Silk Road Pattern
    typeJournal Paper
    journal volume30
    journal issue24
    journal titleJournal of Climate
    identifier doi10.1175/JCLI-D-17-0340.1
    journal fristpage9915
    journal lastpage9932
    treeJournal of Climate:;2017:;volume( 030 ):;issue: 024
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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