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The surface energy balance and its importance for superimposed ice formation (SEBISUP)

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Haas, C. , Bareiss, J. and Nicolaus, M. (2002): The surface energy balance and its importance for superimposed ice formation (SEBISUP) , EC-LSF Report NP-9/2001 .
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Abstract:

Measurements of snow metamorphism and superimposed ice formation and the associatedmeteorological boundary conditions are presented. The observations were performed duringmelt onset, between May 20 and June 03, 2002, on first-year fast ice in Kongsfjorden,Svalbard. During the observation period, meteorological conditions changed from typical late-winterto summer conditions. This transition was characterized by a major change in the long-waveradiation fluxes, and associated air and snow temperature increases. Consequently,extensive snow melt was observed and the transformation of snow into superimposed ice. The0.23 m thick snow cover completely disappeared within 5 days, and was transformed into 5 to6 cm of superimposed ice, covered by a thin layer of deteriorated ice.

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