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    Euro-Atlantic Atmospheric Circulation during the Late Maunder Minimum

    Source: Journal of Climate:;2018:;volume 031:;issue 010::page 3849
    Author:
    Mellado-Cano, Javier
    ,
    Barriopedro, David
    ,
    García-Herrera, Ricardo
    ,
    Trigo, Ricardo M.
    ,
    Álvarez-Castro, Mari Carmen
    DOI: 10.1175/JCLI-D-17-0261.1
    Publisher: American Meteorological Society
    Abstract: AbstractThis paper presents observational evidence of the atmospheric circulation during the Late Maunder Minimum (LMM, 1685?1715) based on daily wind direction observations from ships in the English Channel. Four wind directional indices and 8-point wind roses are derived at monthly scales to characterize the LMM. The results indicate that the LMM was characterized by a pronounced meridional circulation and a marked reduction in the frequency of westerly days all year round, as compared to the present (1981?2010). The winter circulation contributed the most to the cold conditions. Nevertheless, findings indicate that the LMM in Europe was more heterogeneous than previously thought, displaying contrasting spatial patterns in both circulation and temperature, as well as large decadal variability. In particular, there was an increase of northerly winds favoring colder winters in the first half of the LMM, but enhanced southerlies contributing to milder conditions in the second half of the LMM. The analysis of the atmospheric circulation yields a new and complete classification of LMM winters. The temperature inferred from the atmospheric circulation confirms the majority of extremely cold winters well documented in the literature, while uncovering other less documented cold and mild winters. The results also suggest a nonstationarity of the North Atlantic Oscillation (NAO) pattern within the LMM, with extremely cold winters being driven by negative phases of a ?high zonal? NAO pattern and ?low zonal? NAO patterns dominating during moderately cold winters.
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      Euro-Atlantic Atmospheric Circulation during the Late Maunder Minimum

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    contributor authorMellado-Cano, Javier
    contributor authorBarriopedro, David
    contributor authorGarcía-Herrera, Ricardo
    contributor authorTrigo, Ricardo M.
    contributor authorÁlvarez-Castro, Mari Carmen
    date accessioned2019-09-19T10:08:47Z
    date available2019-09-19T10:08:47Z
    date copyright2/16/2018 12:00:00 AM
    date issued2018
    identifier otherjcli-d-17-0261.1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4262054
    description abstractAbstractThis paper presents observational evidence of the atmospheric circulation during the Late Maunder Minimum (LMM, 1685?1715) based on daily wind direction observations from ships in the English Channel. Four wind directional indices and 8-point wind roses are derived at monthly scales to characterize the LMM. The results indicate that the LMM was characterized by a pronounced meridional circulation and a marked reduction in the frequency of westerly days all year round, as compared to the present (1981?2010). The winter circulation contributed the most to the cold conditions. Nevertheless, findings indicate that the LMM in Europe was more heterogeneous than previously thought, displaying contrasting spatial patterns in both circulation and temperature, as well as large decadal variability. In particular, there was an increase of northerly winds favoring colder winters in the first half of the LMM, but enhanced southerlies contributing to milder conditions in the second half of the LMM. The analysis of the atmospheric circulation yields a new and complete classification of LMM winters. The temperature inferred from the atmospheric circulation confirms the majority of extremely cold winters well documented in the literature, while uncovering other less documented cold and mild winters. The results also suggest a nonstationarity of the North Atlantic Oscillation (NAO) pattern within the LMM, with extremely cold winters being driven by negative phases of a ?high zonal? NAO pattern and ?low zonal? NAO patterns dominating during moderately cold winters.
    publisherAmerican Meteorological Society
    titleEuro-Atlantic Atmospheric Circulation during the Late Maunder Minimum
    typeJournal Paper
    journal volume31
    journal issue10
    journal titleJournal of Climate
    identifier doi10.1175/JCLI-D-17-0261.1
    journal fristpage3849
    journal lastpage3863
    treeJournal of Climate:;2018:;volume 031:;issue 010
    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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