Amplitude Modulation of aerodynamic noise is a term used to describe a noise phenomenon experienced at a few unusual wind energy projects in the UK. The term is often used to cause concern amongst residents close to a proposed wind farm in addition to terms such as low frequency noise and infrasound. It is sometimes described as a “thump” as the turbine blade passes the tower.
A recently published report by Salford University confirms that this phenomenon has occurred at 4 wind farms out of 126 and may be occurring at a further 8 in the UK. Exactly what the cause of the effect is appears uncertain however the issue appears to have been resolved through wind turbine control at all sites in the UK, except one, where investigations continue.
What is Amplitude Modulation of Noise from Wind Turbines? | Wind … | Green News
January 3rd, 2009
D. Carroll
February 6th, 2011
I would like to know more about those 4 sites that have given noise problems, ie terrain, wind speeds and direction, geology and geometric layout of turbines on site
wind
March 3rd, 2011
perhaps you could try Hayes McKenzie – the consultants who carried out the study – or RenewableUK
Schmidt
June 4th, 2011
You will find it very hard to acquire data on wind farms especially data specific to aerodynamic modulation and bird strikes/deaths. You will find several sets of data protected by super injunctions banning the release or publications.
There is zero justification for onshore wind farms and the people desiring there construction care about profit and not climate change.
If they were in the slightest bit bothered about climate change they would construct offshore facility which are far more energy efficient. Sadly offshore sites do not produce staggering financial profits so supposed green companies have no interest in building.
Global warming = Global cash in.