FEATURE SPONSOR
NAVIGATION & RADAR IMPACT OF WIND TURBINES ON RADAR
Turbines have the potential to affect radar and navigation systems because they interact with electromagnetic signals. This can impair the effectiveness of the system by altering the desired interaction of the signal with its target (in the same way walkie-talkies are ineffective if a building is in between them).
CONCERNS
When wind farms are proposed, they can present a risk to radar and navigation systems in their vicinity. This often leads to objections from stakeholders such as airports, the Ministry of Defence and the Met Office. Concerns over safety risks can delay projects at various stages within the planning system.
TECHNICAL DIFFERENCES
Meteorological radar networks monitor and predict weather patterns. There are numerous technical differences between radar types according to their function. However, the basic operational principle is common to all types. Electromagnetic pulses are emitted by the radar itself, these propagate through the atmosphere where they interact with the target of interest (e.g. aircraft, ships, or raindrops). Pulses that return to the radar following this interaction tell the radar operator something about the target (e.g. its proximity, velocity or direction of travel).
OTHER NAVIGATION SYSTEMS There are other types of navigation systems that rely on electromagnetic signals to communicate information about a target. These include Instrument Landing Systems at airports, navigation beacons and radio communication stations.
AVOIDING ISSUES
In order to avoid issues, it is important that the potentially affected radar and navigation infrastructure is identified. Early consultation with the relevant stakeholders combined with reliable modelling of the issues is the best way to avoid issues or identify mitigation requirements and stop wind projects being derailed by these impacts.
Pager Power
IMPORTANCE OF RADAR Radar systems are used for navigation purposes across a wide range of industries worldwide. Radar is most commonly associated with aviation, where it plays a crucial role in detecting and managing aircraft movements. However, radar is also important for marine operations, where it is utilised for navigation and collision avoidance.
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