Open AccessNew considerations regarding underwater noise in Black Sea
Author(s) -
Mihai Victor Pricop
Publication year - 2018
Publication title -
scientific bulletin
Language(s) - English
Resource type - Journals
eISSN - 2392-8956
pISSN - 1454-864X
DOI - 10.21279/1454-864x-18-i1-058
Subject(s) - underwater , black sea , marine engineering , acoustics , noise (video) , oceanography , sound (geography) , underwater acoustics , coherence (philosophical gambling strategy) , environmental science , shallow sea , signature (topology) , waves and shallow water , geology , engineering , computer science , physics , mathematics , statistics , geometry , artificial intelligence , image (mathematics)
The development and standardization of measurement techniques for underwater noise sources are important to both military and civil fields regarding the reduction of sound emitted by commercial and military ships. This paper presents new analysis of the acoustic signature of a small vessel during a voyage in the Black Sea. The measurements were made when the ship was moored in shallow waters. The measuring system had 3 hydrophones that were positioned at different depths. Using the coherence function, it was determined the correlation between the recordings. The results were analysed to determine the acoustic signature of the ship. Thermal variations of sea water and effects of sound reflection from the bottom of the sea were taken into account. Conclusions have been made regarding the utility of this type of analysis and the levels of underwater noise in the shallow waters of the Black Sea.