Wind turbines and bat mortality: Doppler shift profiles and ultrasonic bat-like pulse reflection from moving turbine blades

Bat mortality resulting from actual or near-collision with operational wind turbine rotors is a phenomenon that is widespread but not well understood. Because bats rely on information contained in high-frequency echoes to determine the nature and movement of a target, it is important to consider how...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2010-10, Vol.128 (4), p.2238-2245
Main Authors: LONG, Chloe V, FLINT, James A, LEPPER, Paul A
Format: Article
Language:English
Subjects:
Acoustics
Aeroacoustics, atmospheric sound
Animals
Applied sciences
Chiroptera - physiology
Computer Simulation
Doppler Effect
Echolocation
Electric Power Supplies
Energy
Equipment Design
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Monte Carlo Method
Natural energy
Physics
Pipistrellus pipistrellus
Population Dynamics
Recognition (Psychology)
Rotation
Signal Detection, Psychological
Time Factors
Ultrasonics
Wind
Wind energy
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Summary:Bat mortality resulting from actual or near-collision with operational wind turbine rotors is a phenomenon that is widespread but not well understood. Because bats rely on information contained in high-frequency echoes to determine the nature and movement of a target, it is important to consider how ultrasonic pulses similar to those used by bats for echolocation may be interacting with operational turbine rotor blades. By assessing the characteristics of reflected ultrasonic echoes, moving turbine blades operating under low wind speed conditions (
ISSN:0001-4966
1520-8524
DOI:10.1121/1.3479540