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Conference_programme: 27.2 - Underwater Noise II: Sources and remote sensing of the marine environment

Lecture: A software tool for estimating shipping noise footprint with application to South Adriatic – Ionian sea

Author(s): Athanassoulis Gerassimos, Belibassakis Kostas, Gerostathis Theodoros, Prospathopoulos Aris

In this work a software tool is presented for the estimation of the radiated noise of travelling vessels, based on specific parameters of the ship, mainly the propeller and the main engine system. Focusing on the octave bands centered at 63Hz and 125Hz, the KRAKEN coupled-mode model (Porter 2001, Jensen et al 2011) is implemented for the calculation of sound propagation from point sources representing the travelling ships, which is considered appropriate for the low frequency part of the spectrum; see also Skarsoulis et al (2016). The developed model is used, in conjunction with geographical (bathymetry and coastline) information, oceanographic data (temperature, salinity, sound speed distribution), and geoacoustic parameters of the seafloor, to calculate the acoustic field in the geographical region of the Southern Adriatic – Ionian Sea, focusing on the area around the port of Otranto. The received acoustic fields from navigating ships are superimposed to define the shipping noise footprint in the studied area, at different seasons.\n\n\nReferences\n\nJensen F., Kupperman W., Porter M. Schmidt H., 2011, Computational Ocean Acoustics, 2nd Edition, Springer.\nPorter M, 2001, The Kraken normal mode model, Ocean Acoustics Library (http://oalib.hlsresearch.com/).\nSkarsoulis E., Piperakis, E., Orfanakis E., Papadakis P., 2016, Prediction of shipping noise in the Eastern Mediterranean Sea, Internoise 2016, Hamburg.\n\n

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Corresponding author

Name: Prof Kostas Belibassakis

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Country: Greece