Abstracts Submitted: 250
Number of Users: 297
View Abstracts Submitted
Back to home Page
Long term measurements of noise were collected using an Automated Noise Measurement System (ANMS), spanning 10 months (July 2015- April 2016) at central Kongsfjorden using an omnidirectional hydrophone deployed at 30 m depth from sea surface. The measurement location is 2 km from the Ny Alesund port and has several vessels plying mainly during summer season. Average sound level in third octave bands with centre frequencies at 63 Hz and 125 Hz have been analyzed, as per the EU’s marine Strategy Framework Directive indicator for shipping noise. Spectral analysis is carried out and correlated with AIS marine traffic data. The Noise field is assessed for different seasons and is seen to be highly variable for a range of vessel types with highest levels recorded during summer-fall. Noise measures such as level histograms and cumulative distributions are presented and discussed. Examples of dominants noise mechanisms such as passing ships, and other low frequency events are presented to highlight their frequency bands.
© Copyright 2017 All Rights Reserved