Seismic surveys in Baffin Bay and the Greenland regulation
Seismic surveys increasingly operate in deeper Arctic waters with propagation conditions and a marine mammal fauna different from better-studied temperate or shallow-water regions. Therefore we quantified the noise contributions from four concurrent seismic surveys in Baffin Bay, Greenland, to estim...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/c6dcf600-9bfb-45ea-9889-f634dbfb6db9 2023-05-15T14:31:40+02:00 Seismic surveys in Baffin Bay and the Greenland regulation Kyhn, Line Anker Wisniewska, Danuta Maria Tougaard, Jakob Simon, Malene Mosbech, Anders Madsen, Peter Teglberg 2017-11-21 https://pure.au.dk/portal/da/publications/seismic-surveys-in-baffin-bay-and-the-greenland-regulation(c6dcf600-9bfb-45ea-9889-f634dbfb6db9).html http://conferences.au.dk/fileadmin/conferences/2017/NOW/NOW_Conference_web_14nov_Final.pdf eng eng info:eu-repo/semantics/openAccess Kyhn , L A , Wisniewska , D M , Tougaard , J , Simon , M , Mosbech , A & Madsen , P T 2017 , ' Seismic surveys in Baffin Bay and the Greenland regulation ' , North Water Polynya Conference , Copenhagen , Denmark , 22/11/2017 - 24/11/2017 . < http://conferences.au.dk/fileadmin/conferences/2017/NOW/NOW_Conference_web_14nov_Final.pdf > conferenceObject 2017 ftuniaarhuspubl 2023-04-05T22:57:07Z Seismic surveys increasingly operate in deeper Arctic waters with propagation conditions and a marine mammal fauna different from better-studied temperate or shallow-water regions. Therefore we quantified the noise contributions from four concurrent seismic surveys in Baffin Bay, Greenland, to estimate their potential impacts on Arctic marine mammals using calibrated 31 sound recorders. The impact was cumulative as the noise level rose in response to the onset of each survey: On a minute-to-minute scale the sound exposure levels varied with up to 70 dB (20 dB on average), depending on range to the seismic vessel, local bathymetry effects and interference patterns, showing a significant change in the auditory scene for marine mammals. The measured values matched well with pre-season modeling, emphasizing the value of noise modeling in impact assessments, if species-specific responses of focal marine mammals are known. The results of the study is discussed in relation to the current regulation of underwater noise in Greenland with focus on the NOW Polynya. Conference Object Arctic marine mammals Arctic Baffin Bay Baffin Bay Baffin Greenland Aarhus University: Research Arctic Baffin Bay Greenland |
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Open Polar |
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Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
description |
Seismic surveys increasingly operate in deeper Arctic waters with propagation conditions and a marine mammal fauna different from better-studied temperate or shallow-water regions. Therefore we quantified the noise contributions from four concurrent seismic surveys in Baffin Bay, Greenland, to estimate their potential impacts on Arctic marine mammals using calibrated 31 sound recorders. The impact was cumulative as the noise level rose in response to the onset of each survey: On a minute-to-minute scale the sound exposure levels varied with up to 70 dB (20 dB on average), depending on range to the seismic vessel, local bathymetry effects and interference patterns, showing a significant change in the auditory scene for marine mammals. The measured values matched well with pre-season modeling, emphasizing the value of noise modeling in impact assessments, if species-specific responses of focal marine mammals are known. The results of the study is discussed in relation to the current regulation of underwater noise in Greenland with focus on the NOW Polynya. |
format |
Conference Object |
author |
Kyhn, Line Anker Wisniewska, Danuta Maria Tougaard, Jakob Simon, Malene Mosbech, Anders Madsen, Peter Teglberg |
spellingShingle |
Kyhn, Line Anker Wisniewska, Danuta Maria Tougaard, Jakob Simon, Malene Mosbech, Anders Madsen, Peter Teglberg Seismic surveys in Baffin Bay and the Greenland regulation |
author_facet |
Kyhn, Line Anker Wisniewska, Danuta Maria Tougaard, Jakob Simon, Malene Mosbech, Anders Madsen, Peter Teglberg |
author_sort |
Kyhn, Line Anker |
title |
Seismic surveys in Baffin Bay and the Greenland regulation |
title_short |
Seismic surveys in Baffin Bay and the Greenland regulation |
title_full |
Seismic surveys in Baffin Bay and the Greenland regulation |
title_fullStr |
Seismic surveys in Baffin Bay and the Greenland regulation |
title_full_unstemmed |
Seismic surveys in Baffin Bay and the Greenland regulation |
title_sort |
seismic surveys in baffin bay and the greenland regulation |
publishDate |
2017 |
url |
https://pure.au.dk/portal/da/publications/seismic-surveys-in-baffin-bay-and-the-greenland-regulation(c6dcf600-9bfb-45ea-9889-f634dbfb6db9).html http://conferences.au.dk/fileadmin/conferences/2017/NOW/NOW_Conference_web_14nov_Final.pdf |
geographic |
Arctic Baffin Bay Greenland |
geographic_facet |
Arctic Baffin Bay Greenland |
genre |
Arctic marine mammals Arctic Baffin Bay Baffin Bay Baffin Greenland |
genre_facet |
Arctic marine mammals Arctic Baffin Bay Baffin Bay Baffin Greenland |
op_source |
Kyhn , L A , Wisniewska , D M , Tougaard , J , Simon , M , Mosbech , A & Madsen , P T 2017 , ' Seismic surveys in Baffin Bay and the Greenland regulation ' , North Water Polynya Conference , Copenhagen , Denmark , 22/11/2017 - 24/11/2017 . < http://conferences.au.dk/fileadmin/conferences/2017/NOW/NOW_Conference_web_14nov_Final.pdf > |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766305222763741184 |