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Sea ice and circulation in the Weddell Sea
Petit, B.; Demuth, C. (1993). Sea ice and circulation in the Weddell Sea, in: Caschetto, S. (Ed.) Belgian scientific research programme on Antarctica: scientific results of phase II (10/1988-05/1992): 3. Glaciology and climatology. pp. II/10/1-48
In: Caschetto, S. (Ed.) (1993). Belgian scientific research programme on Antarctica: scientific results of phase II (10/1988-05/1992): 3. Glaciology and climatology. Belgian scientific research programme on Antarctica. Belgian Science Policy Office: Brussel. 259 pp., meer
In: Belgian scientific research programme on Antarctica. Belgian Science Policy Office: Brussel. , meer
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  • Petit, B.
  • Demuth, C.
Abstract
    The modelof sea ice formation developed during the first phase of the Belgian Scientific Research Programme on Antarctica is the base of the present work. The thermodynamic features have been completely checked to improve the behaviour of the mixed layer. The improvement of ice motion has been studied by developing circulations models. At first, a 2.5D vertical plane model is applied in antarctic conditions to point out the problems encountered in the Southern Ocean. This model is then extended in the third direction of space to obtain a 3D oceanic model. This three-dimensional model is used to compute the currents in the Weddell Sea for each month in a year. It reproduces the clockwise circulation of the Weddell Sea and the strong north-east currents in the northem part of the Drake Passage. These results are then introduced in the SEAICE model to calculate the ice dynamics. They yield satisfying ice thicknesses and ice extent.
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