Abstracts Submitted: 510
Number of Users: 708
View Abstracts Submitted
Back to home Page
Sea ice is one of the most important environmental variable and a key indicator of climate change. The ambient noise in the Arctic Ocean is a major implication to understand the rapid change in sea ice condition. The time series of ambient noise measurements were carried out in the Kongsfjorden fjord, Arctic Ocean, by using an autonomous passive acoustic system, during the period, July 2015-April 2016. The seasonal variation of under-ice ambient noise is analyzed and discusses its relation to environmental parameters such as sea ice concentration, wind speed, water temperature and current speed. The statistical analysis has been made and the results show the ambient noise level correlates well with the environmental parameters. Noise levels are the lowest during the boreal winter, as the temperature decreases and sea ice suppresses surface wind noise. Ambient noise levels are the highest during the boreal spring and summer because of sea ice cracking, melting, increase in temperature and current in the upper water column. This study shows that the ambient noise levels vary with the environmental parameters that can derive the sea ice dynamics in the Kongsforden, Arctic Ocean.
© Copyright 2017 All Rights Reserved