Circulation patterns in a channel reef-lagoon system, Ouano lagoon, New Caledonia

Damien Sous 1 Cristele Chevalier 1 Jean Luc Devenon 1 Jean Blanchot 1 Marc Pagano 1
1 MIO - Institut méditerranéen d'océanologie
Abstract : This paper reports on two three-months field experiments carried out in the Ouano lagoon, New Caledonia. This channel-type lagoon, exposed to meso-tides, south pacific swells and trade winds, has been monitored thanks to a network of currents profilers to understand the dynamics of the lagoon waters. Four typical circulation patterns have been identified, covering all together more than 90% of the survey period. These patterns are mainly driven by the waves and wind features. In particular, obliquely incident waves or strong winds blowing over a sufficient period are able to reverse the typical circulation pattern. The analysis of the vertical structure of the currents through passages shows the regular presence of a nearly linear vertical shear within the water column.
Keywords : reef barrier lagoon waves circulation patterns vertical shear
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Article dans une revue
Estuarine, Coastal and Shelf Science, Elsevier, 2017, 196, pp.315 - 330. 〈10.1016/j.ecss.2017.07.015〉
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Damien Sous, Cristele Chevalier, Jean Luc Devenon, Jean Blanchot, Marc Pagano. Circulation patterns in a channel reef-lagoon system, Ouano lagoon, New Caledonia. Estuarine, Coastal and Shelf Science, Elsevier, 2017, 196, pp.315 - 330. 〈10.1016/j.ecss.2017.07.015〉. 〈hal-01566395〉

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