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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 19, issue 9
Ann. Geophys., 19, 1183–1193, 2001
https://doi.org/10.5194/angeo-19-1183-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 19, 1183–1193, 2001
https://doi.org/10.5194/angeo-19-1183-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

  30 Sep 2001

30 Sep 2001

Use of the Acoustic Doppler Current Profiler (ADCP) in the study of the circulation of the Adriatic Sea

L. Ursella and M. Gacic L. Ursella and M. Gacic
  • Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante 42/c, 34010 Sgonico (Trieste), Italy

Abstract. The results of basin-wide vessel-mounted ADCP measurements carried out from May 1995 through February 1996 in the Adriatic Sea are analysed in order to characterise the tidal flow, the steady current field and some specific sub-basin scale features. The M2 tide shows the amphidromic point close to the location predicted from theory. The K1 presents an almost constant phase structure that increases in the northern part from east to west during summer. The circulation in the Italian coastal shelf area is highly variable, due to the local wind forcing and pulses of the Po River discharge. The propagation of the signal associated with the latter, can be described in terms of hybrid internal Kelvin waves, revealed also from the upwelling events. It is also shown that the bottom density-driven current draining the bottom layer of the northern Adriatic is, to a large extent, a time-dependent feature with a temporal scale on the order of days.

Key words. Oceanography: general (descriptive and regional oceanography; marginal and semi-enclosed seas) Oceanography: physical (currents)

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