Heat flux at the ice‐ocean interface

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書誌事項

公開日
1991-04-15
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1029/90jc00081
公開者
American Geophysical Union (AGU)

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説明

<jats:p>The role of the oceanic heat flux <jats:italic>F<jats:sub>w</jats:sub></jats:italic> in the sea ice energy and mass balance is discussed, and a method is described for determining <jats:italic>F<jats:sub>w</jats:sub></jats:italic> from measurements of the temperature and thickness of sea ice. Results obtained using this method and data collected in the fall of 1988 during a drift in the eastern Arctic northeast of Fram Strait are presented. Estimates of <jats:italic>F<jats:sub>w</jats:sub></jats:italic> ranged from 0 to 37 W m<jats:sup>−2</jats:sup> and varied in both time and space. The gradual variation over the course of the drift reflects transformation of the West Spitsbergen Current into Arctic water masses. A significant intersite variability on horizontal scales of 10 to 100 m is ascribed to the interaction between under‐ice topographic features and turbulent energy and mass transfer in the boundary layer. In addition, there is a variability in the ice growth rate on horizontal scales of 0.1 to 1 m which is ascribed to the instability of the ice‐ocean phase boundary in the presence of turbulent flow. These observations have implications for modeling and future experiments.</jats:p>

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