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Investigations on the Currents Influencing Iceberg Motion

  • M. Dhalluin (a1)

Abstract

Several factors contribute to the natural drift of an iceberg, and among these, currents play an important part on the translation and rotation. Some information exists on surface currents in sub-Antarctic areas, but an iceberg behaves as a current integrator due to its draught and it is assumed to drift under the action of a “mean” current. In order to measure the mean current, five drogued buoys were launched in July–August 1979. These buoys were located by Argos satellite transponders. The drift of the buoys gives the mean current from 0 to 230 m depth in the Southern Ocean. Some corrections must be made on the measured drifting speed of the drogued buoys, due to the influence of the wind on the above-water portion of the buoys.

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Copyright

References

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Great Britain. Hydrographer of the Navy. 1974 The Antarctic pilot comprising the coasts of Antarctica and all islands southward of the usual route of vessels. 4th ed. Taunton, Somerset, Hydrographer of the Navy.
Harris, T F W, Stavropoulos, C C 1978 Satellite-tracked drifters between Africa and Antarctica. Bulletin of the American Meteorological Society 59(1) : 5159

Investigations on the Currents Influencing Iceberg Motion

  • M. Dhalluin (a1)

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