1.2.1 Having a sub-humid Mediterranean climate,
with temperate winters, the Strait of Bonifacio region is also particularly
windy. Data recorded by the Pertusato semaphore station on the Bonifacio
plateau show that the wind blows on 328 days per year (171 days of
wind >16 m/s or 57.6 km/h). There is high frequency of winds of a
speed faster than 8 m/s, almost exclusively from two directions: west
(280°) and east (80°).
1.2.2 Given the hydrographical, topographical
and meteorological conditions (shoals, strong winds and currents),
the major risk to the Strait of Bonifacio area relates to accidental
pollution from all forms of navigation in the Strait itself (several
merchant ships have sunk in the past 30 years), and also on its periphery.
The risk of collision with a bottlenose dolphin is also a threat identified
by the Pelagos sanctuary for Mediterranean marine mammals.