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Tides in the northern Adriatic Sea-the Gulf of Trieste
| Content Provider | Semantic Scholar |
|---|---|
| Author | Malac, V. Viezzolie, D. |
| Abstract | Theeffectsoftidesin the northernAdriaticSeawereexaminedusing the 2D finite-differencemodel. The Eulerian residual velocityfield of the calibrated modelwas checkedfor the mixingefficiencyof tides in the northern Adriatic Sea. It is shownthrough the simulationof tides for the period of one half year that tides are too weak to mix the wholewater column(at any time within this period),even in front of the promontories (e.g.the Po river outlet). The model resolution (556m) allowed analysis of the tidal dynamics in smaller regions. In the Gulf of Trieste the model results are in satisfactory agreement with the current-meter observations for winter 1984-85and spring 1985.It is shownthat in the middle of the entrance to the gulf the sense of rotation of the tidal ellipse vector changes from a clockwiserotation at the southern part of the entrance to an anticlockwiserotation at the northern part of entrance. Tidal currents in the interior of the gulf rotate counterclockwise,while in small bays, and in front of them, the rotation is clockwise. Early studies on tidal dynamicsof the Adriatic Sea began in the nineteenth century. Defant [1] showed that Mediterranean tides are strong in the northern part of the Adriatic Sea (the Gulf of Trieste). The tide there is of a mixed type, with the M2 constituent prevailing and KI as the second most powerful one [2]. Taylor [3] described analytically the tidal dynamics of a rectangular semi-enclosed basin. His theory, however, does not apply to a domain around a co-oscillatinggulf located at a side of the closed end of a basin (e.g., the Gulf of Trieste). The problem of the absorption of semidiurnal tidal waves at the head of the basin (the coast from Venice to Trieste) was studied in [4]. The absorption displaces the amphidromic point towards the western (Italian) coast. The early numerical models of the northern Adriatic Sea focused attention on the M2 and the KI components[5] (2D model), and the M2alone [6] (3D model). In both models different boundary conditionswere utilised. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.mbss.org/staff/doc/V_Malacic/Malacic_Viezzoli_Tides_Nuov_Ciment_2000.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
