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Titel |
Upper layer current variability in the Central Ligurian Sea |
VerfasserIn |
P. Picco, A. Cappelletti, S. Sparnocchia, M. E. Schiano, S. Pensieri, R. Bozzano |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1812-0784
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Digitales Dokument |
URL |
Erschienen |
In: Ocean Science ; 6, no. 4 ; Nr. 6, no. 4 (2010-10-01), S.825-836 |
Datensatznummer |
250003675
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Publikation (Nr.) |
copernicus.org/os-6-825-2010.pdf |
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Zusammenfassung |
Long-time series of surface currents and meteorological
parameters were analysed to estimate the variability of the upper layer
circulation and the response to the local winds. Current meter data were
collected by an upward-looking RDI Sentinel 300 kHz ADCP deployed in the
Central Ligurian Sea (43°47.77' N; 9°02.85' E) near the
meteo-oceanographic buoy ODAS Italia 1 for more than eight months, from
13th of September 2003 to 24th of May 2004. The ADCP sampled the
upper 50 m of water column at 8 m vertical resolution and 1 h time interval;
surface marine and atmospheric hourly averaged data were provided by the
buoy. Currents in the sampled layer were mainly barotropic, directed
North-West in accordance with the general circulation of the area, and had a
mean velocity of about 18 cm/s and hourly mean peaks up to 80 cm/s. Most
of the observed variability in the upper thermocline was determined by
inertial currents and mesoscale activity due to the presence of the Ligurian
Front. Local wind had a minor role in the near-surface circulation but
induced internal waves propagating downward in the water column. |
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