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Upper layer current variability in the Central Ligurian Sea

TitleUpper layer current variability in the Central Ligurian Sea
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2010
AuthorsPicco, P., Cappelletti Andrea, Sparnocchia S., Schiano M.E., Pensieri S., and Bozzano R.
JournalOcean Science
Volume6
Pagination825-836
ISSN18120784
Keywordsbarotropic motion, data set, General circulation model, Ligurian Sea, Mediterranean Sea, Meteorology, observational method, oceanic circulation, oceanic current, resolution, thermocline, Time series, upper atmosphere, water column, wind velocity
Abstract

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 50m of water column at 8m 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 nearsurface circulation but induced internal waves propagating downward in the water column. © 2010 Author(s).

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-80051537680&doi=10.5194%2fos-6-825-2010&partnerID=40&md5=b2c3da3c886d4829ba6f68e0b5ab6e87
DOI10.5194/os-6-825-2010
Citation KeyPicco2010825