System for controlling aeraulic conditions above a landing or deck-landing zone

A system for controlling aeraulic conditions which exist above a surface for landing or deck-landing of an aircraft, referred to as an aerial arrival zone, the system being adapted for use when the aerial arrival zone is located close to a superstructure, along an alignment axis which is oriented from the aerial arrival zone towards the superstructure, the superstructure extending vertically higher than the aerial arrival zone and being capable of altering a wind flow above the aerial arrival zone, said system comprising:

• anemometric means, adapted to provide speed and bearing angle values which characterize a relative speed of the wind with respect to the aerial arrival zone and the superstructure,
• wherein the system further comprises:
• aeraulic means, which are arranged close to the aerial arrival zone, and are capable of modifying air movements above said aerial arrival zone;
• and
• a controller, adapted to activate the aeraulic means when at least one of the following two conditions is satisfied:
• the speed value which is supplied by the anemometric means is greater than a first non-zero threshold, and the absolute value of the bearing angle value which is supplied by said anemometric means is less than a second non-zero threshold.