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Follow-up actions

Monitoring of Avifauna by marine radar

Objectives and methodology

Monitoring of avifauna by marine radar will be carried out using an automated radar/camera system installed in the wind farm. Vertical data provides information on flight height while horizontal data provides information on lateral trajectories/directions. Both are important to see if the birds change their flying height, avoid the wind turbines laterally, enter and exit the wind farm directly.

The two main objectives are as follows:

Continuous measurement of bird flows

Determine the average rate of traffic and evaluate potential changes in seabird behaviour due to the presence of the wind farm: macro/ meso/ micro avoidance, height and direction of flight. In addition, this type of monitoring during the operational phase will also make it possible to measure the habituation of birds to the presence of the wind farm.

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Measuring migration flow

Passing through the implementation site (in spring and fall), to learn more about the importance of the passages in Saint-Brieuc Bay.

The system (location, type of radar, coverage, dual purpose navigation/aviation, parameterization, maintenance, etc.) is being defined to be operational in the operational phase. 

 

Location of actions

Two radars will be installed within the wind farm, one in the north on foundation no. 57, and the other one in the south. The location has yet to be validated in accordance with the technical constraints of installation, but it could a priori be foundation no. 9.

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Figure 8: Location of the 2 marine radars within the wind farm.

Planning and Status

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Under development

This follow-up will begin when the wind turbines of the wind farm are commissioned and will last for 2 years during the operation phase of the wind farm.

All follow-up actions

Reduction measures

Compensation measures

Accompanying measures