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FIGURE 17 Simulation of nearshore wave propagation at Cala Azzurra. Incident wave coastline geometry and seabed Research & development
conditions correspond to morphological waves for SE and SW sectors morphology and, as expected
at 15 m depth from what discussed above, more
intense hydrodynamic conditions
are observed at Cala Azzurra
compared to Lido Burrone.
From nearshore circulation
patterns, a general transport
toward the eastern ends of both
sites can be noticed. This seems
to suggest a certain potential
sediment supply to the Cala
Azzurra eastern bay and to the
Lido Burrone beach, where, in
fact, permanent emerged beach
can be observed. The above
observation, however, takes into
account only average incident
wave conditions and is not to be
considered exhaustive of the
complex sediment dynamics of
study area.

Conclusions

In-situ activities and model studies

performed during the project

provided a detailed knowledge of

coastal morphology and dynamics

of Cala Azzurra and Lido Burrone

coastal sites.

The main results can be

summarized as follows:

FIGURE 18 Simulation of nearshore wave propagation at Lido Burrone. Incident wave 1. Both sites present a quite
conditions correspond to morphological waves for SE and SW sectors
at 15 m depth complex bathymetry.
2. Limitedly to surveyed areas,an

overall stability of submerged

beach was observed, with

depicted in Figure 19 and Figure 20 in terms of time- little bathymetric variations among different surveys.

averaged surface elevation, whilst Figure 21 and Figure A clear seasonal regime of beach profiles was not

22 illustrate the wave-driven nearshore circulation noticeable from survey data, even if this aspect

currents. should be better clarified by further investigation

At both sites, offshore-directed return currents can on sea bottom geology and coverage.

be noticed in the middle of the nearshore area. 3. Results of the hydrodynamic study are consistent

Nearshore currents are strongly affected by the with field observations.

57EAI Energia, Ambiente e Innovazione 4/2015