Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Decohesion with refreezing
Abstract In a previous paper, an elastic-decohesive model was developed for sea ice. Unlike previous models, orientation and displacement discontinuity associated with lead opening are specifically predicted. However, over the course of a season a specific lead may open and close several times with significant implications related to ice production and heat flux. The focus of this paper is to indicate, in a generic manner, how the formation of new ice by freezing within a lead and the recovery of tensile strength by the freezing of ridges can be accommodated easily within the decohesive structure. A sample simulation is provided to show the implications of these additional terms on ice production over several cycles of lead opening and closing.
Highlights ► The model predicts the initiation and orientation of leads. ► The model indicates lead opening and closing due to forcing. ► A new feature is lead refreezing to resist further opening.
Decohesion with refreezing
Abstract In a previous paper, an elastic-decohesive model was developed for sea ice. Unlike previous models, orientation and displacement discontinuity associated with lead opening are specifically predicted. However, over the course of a season a specific lead may open and close several times with significant implications related to ice production and heat flux. The focus of this paper is to indicate, in a generic manner, how the formation of new ice by freezing within a lead and the recovery of tensile strength by the freezing of ridges can be accommodated easily within the decohesive structure. A sample simulation is provided to show the implications of these additional terms on ice production over several cycles of lead opening and closing.
Highlights ► The model predicts the initiation and orientation of leads. ► The model indicates lead opening and closing due to forcing. ► A new feature is lead refreezing to resist further opening.
Decohesion with refreezing
Peterson, Kara (Autor:in) / Schreyer, Howard (Autor:in) / Sulsky, Deborah (Autor:in)
Cold Regions, Science and Technology ; 76-77 ; 44-51
04.08.2011
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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