Validating a wavenumber integration model for the prediction of underwater noise due to offshore pile driving
Invited paper
University of Technology Hamburg
Monday 1 june, 2015, 17:40 - 18:00
0.2 Berlin (90)
Abstract:
The substantial extension of the offshore wind energy capacities within the
German exclusive economic zone along with the presence of several conservation
areas for, e.g., marine mammals like the harbor porpoise, led to the
introduction of limiting values concerning the underwater sound emission
during construction of offshore wind turbines. With that, the development of
sound mitigation systems as well as the development of reliable prediction
models became necessary. Predicting underwater sound levels in distances up to
several kilometers from the construction site requires a propagation model,
which is capable of an appropriate tradeoff between prediction accuracy and
calculation time. The current work presents a wavenumber integration model,
which has been validated by several profound offshore measurement campaigns.
The focus of this contribution is on the comparison between modelling and
measurement results and on practical restrictions during the validation
process.