reduced noise levels, and even at one metre below the surface of the water, would be exposed to much lower levels than those predicted in the propagation modelling.


Plate 9.5. Single pile propagation model output (see Section 9.4 for details) indicating possible harbour porpoise Phocoena phocoena behavioural disturbance for a 3,500 kJ hammer strike energy at East Anglia THREE (example location based on Location ID17, Table 9.13, Annex C). White indicates a depth of < 0 m for tidal height modelled (HAT).


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm Appendix 9.1 Underwater Noise Modelling 43


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