![]() ![]() In the case of the strongest diurnal constituent (K1), the maximum inflowing current leads the maximum sea-level for about 4 hours in both inlets in the same way, at the most energetic semi-diurnal frecuency (M2) the maximum inflowing current leads the maximum sea-level for about 2 hours. ![]() These results were compared with sea surface elevation data at the same locations and for the same period of current measurement. ![]() The phase differences between both inlets shows that the inflowing current at Malamocco leads for about 20 minutes the one at Lido. the flow is almost entirely driven by the tidal signal. The whole set of constituents explains between 94 and 97% of the total variance, i.e. Harmonic analysis is applied for determining the main tidal constituents in the flow. The preliminary results have shown a highly- dominant tidal signal with the polarization of the oscillations mainly along the channel axes. From these measurements is apparent that the currents can reach to almost 2 m/s with the corresponding flow rate about 10000 m3/s (for a comparison Po, the biggest Adriatic river has an average discharge rate of 1500 m3/s reaching only exceptionally a value of 11.000 m3/s). The vertical resolution is set to 1 meter and the three-components current is sampled and recorded every 10 minutes. The measurements initiated 17 June, 2001 at selected locations, namely Lido and Malamocco. ![]() Current measurements have been carried out with the bottom-mounted Acoustic Doppler Current Profiler (ADCP) so that in each inlet one ADCP has been installed. The first long-term monitoring of current flow in the inlets of the Venice lagoon has started in summer 2001. ![]()
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