HouleMooreProvencher2007

Référence

Houle, D., Moore, J.-D. and Provencher, J. (2007) Ice bridges on the St. Lawrence River as an index of winter severity from 1620 to 1910. Journal of Climate, 20(4):757-764. (Scopus )

Résumé

Temperature reconstruction of the last thousand years suggests that an unprecedented warming (+0.6°C) occurred over the globe in the last century. However, regional variations in climate are not resolved by Northern Hemisphere reconstructions. In northeastern North America, past climate and, particularly, past winter variations are poorly known. Here, the authors report on the variation of a winter temperature index during the 1620-1910 period, based on the ice bridge formation (IBF) rate on the Saint Lawrence River at Québec City (Canada), combined with instrumental data (1876-2000). During this 300-yr period, the IBF rate shows that winters in the seventeenth and eighteenth centuries were warmer than those in the nineteenth century. In particular, the IBF rate suggests that winter severity culminated in the 1850-1900 period, while very few ice bridges were reported between 1620 and 1740, presumably because of warmer temperatures and the relative scarcity of historical documents for the 1680-1740 period. These data suggest that winter temperature, particularly between ∼1800 and 1910, was 2.4° to 4.0°C colder than the last 30-yr average. Major volcanic eruptions had a significant positive impact on IBF rates, which is consistent with their role as important climate-forcing events. © 2007 American Meteorological Society.

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@ARTICLE { HouleMooreProvencher2007,
    AUTHOR = { Houle, D. and Moore, J.-D. and Provencher, J. },
    TITLE = { Ice bridges on the St. Lawrence River as an index of winter severity from 1620 to 1910 },
    JOURNAL = { Journal of Climate },
    YEAR = { 2007 },
    VOLUME = { 20 },
    PAGES = { 757-764 },
    NUMBER = { 4 },
    NOTE = { cited By 8 },
    ABSTRACT = { Temperature reconstruction of the last thousand years suggests that an unprecedented warming (+0.6°C) occurred over the globe in the last century. However, regional variations in climate are not resolved by Northern Hemisphere reconstructions. In northeastern North America, past climate and, particularly, past winter variations are poorly known. Here, the authors report on the variation of a winter temperature index during the 1620-1910 period, based on the ice bridge formation (IBF) rate on the Saint Lawrence River at Québec City (Canada), combined with instrumental data (1876-2000). During this 300-yr period, the IBF rate shows that winters in the seventeenth and eighteenth centuries were warmer than those in the nineteenth century. In particular, the IBF rate suggests that winter severity culminated in the 1850-1900 period, while very few ice bridges were reported between 1620 and 1740, presumably because of warmer temperatures and the relative scarcity of historical documents for the 1680-1740 period. These data suggest that winter temperature, particularly between ∼1800 and 1910, was 2.4° to 4.0°C colder than the last 30-yr average. Major volcanic eruptions had a significant positive impact on IBF rates, which is consistent with their role as important climate-forcing events. © 2007 American Meteorological Society. },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1175/JCLI4025.1 },
    KEYWORDS = { Atmospheric temperature; Global warming; Ice; North America, Climate forcing events; Ice bridge formation; Temperature reconstruction, Climatology, climate change; climate forcing; climate variation; environmental effect; ice breakup; Northern Hemisphere; reconstruction; severe weather; volcanic eruption; winter, Canada; North America; Quebec [Canada]; Saint Lawrence River },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-33847418824&partnerID=40&md5=4d2fd4d8274a2cffadab290e18df8be7 },
}

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