Modelling of ships as a source of underwater noise
Artikel i vetenskaplig tidskrift, 2018
In this paper, a methodology is presented for modelling underwater noise emissions from ships based on realistic vessel activity in the Baltic Sea region. This paper combines the Wittekind noise source model with the Ship Traffic Emission Assessment Model (STEAM) in order to produce regular updates for underwater noise from ships. This approach allows the construction of noise source maps, but requires parameters which are not commonly available from commercial ship technical databases. For this reason, alternative methods were necessary to fill in the required information. Most of the parameters needed contain information that is available during the STEAM model runs, but features describing propeller cavitation are not easily recovered for the world fleet. Baltic Sea ship activity data were used to generate noise source maps for commercial shipping. Container ships were recognized as the most significant source of underwater noise, and the significant potential for an increase in their contribution to future noise emissions was identified.
Författare
J. P. Jalkanen
Finnish Meteorological Institute
L. Johansson
Finnish Meteorological Institute
Mattias Liefvendahl
Totalförsvarets forskningsinstitut (FOI)
Chalmers, Mekanik och maritima vetenskaper, Marin teknik
Rickard Bensow
Chalmers, Mekanik och maritima vetenskaper, Marin teknik
P. Sigray
Totalförsvarets forskningsinstitut (FOI)
M. Östberg
Totalförsvarets forskningsinstitut (FOI)
I. Karasalo
Totalförsvarets forskningsinstitut (FOI)
Mathias Andersson
Totalförsvarets forskningsinstitut (FOI)
Heikki Peltonen
Suomen ympäristökeskus SYKE
Jukka Pajala
Suomen ympäristökeskus SYKE
Ocean Science
1812-0784 (ISSN)
Vol. 14 6 1373-1383Ämneskategorier
Transportteknik och logistik
Farkostteknik
DOI
10.5194/os-14-1373-2018