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    The melting of snow and ice is assumed to be related to air temperature as long as air temperature is above a critical threshold, usually close to the melting point of ice. In particular, the amount of snow or ice melted at a certain place, during a certain period, is assumed proportional to the sum of positive temperatures (on the Celsius scale) at the same place and in the same period. The amount of melt is linked to this positive degree-day sum by the degree-day factor. In the present article, air temperature refers to conventional measurements made c. 2 m above the snow or ice surface, or extrapolated from a similar station in the same region.
    Original languageEnglish
    Title of host publicationEncyclopedia of snow, ice and glaciers
    EditorsV. P. Singh, P. Singh, U. K. Haritashya
    PublisherSpringer Nature
    Number of pages4
    ISBN (Print)978-90-481-2641-5
    Publication statusPublished - Jun 2011

    Publication series

    NameEncyclopedia of Earth Sciences Series
    ISSN (Electronic)1388-4360


    • Snow, ice, melting, air temperature, degree-day sum, degree-day factor


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