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Article Dans Une Revue Ocean Modelling Année : 2011

Observation and parameterization of small icebergs: Drifting breakwaters in the southern ocean

Résumé

The variability of small-size iceberg distributions is revealed from a novel analysis of satellite altimeter data. A strong annual cycle is modulated by pulse-like events confined to single ocean basins, with dense iceberg populations in the South Atlantic in 2004-2005, and in the South Pacific in 2008. Anomalies in sea surface temperatures of the order of 1 degrees C may be related to the iceberg distribution. Icebergs also appear very strongly associated with anomalies in the heights of ocean waves. A preliminary parameterization of wave blocking by icebergs significantly reduces wave model errors in the region south of 45 degrees South, and has a perceptible influence on all the west coasts of the Southern hemisphere. (C) 2011 Elsevier Ltd. All rights reserved.

Dates et versions

hal-04499029 , version 1 (11-03-2024)

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Citer

Fabrice Ardhuin, Jean Tournadre, Pierre Queffeulou, Fanny Girard-Ardhuin, Fabrice Collard. Observation and parameterization of small icebergs: Drifting breakwaters in the southern ocean. Ocean Modelling, 2011, 39 (3-4), pp.405-410. ⟨10.1016/j.ocemod.2011.03.004⟩. ⟨hal-04499029⟩
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