HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 20 SEARCH STATISTICS PAS - GDANSK DIVISION

Noise of diving arctic birds

pp. 229-236, vol. 14, 2011

Joanna Szczucka
Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland

Key words: spectral characteristic; classification by use of the Partitioning Around Medoids; wind; rain; still; ships

Abstract: This paper presents the analysis of noise data recorded by the Autonomous Hydroacoustic System (AHS) deployed in the Spitsbergen fjord close to the little auks colony. It focuses on the sounds generated by these small Arctic birds diving for food. The noise signals from the frequency band 0.4-12.5 kHz are used to find spectral characteristics of diving birds. Different statistical methods of data mining and dimension reduction are applied to discern bird noise from the other sources (ships, rain, wind, etc.). Bird’s noise signal is characterised by a narrow intensive peaks with a maximum at 1-4 kHz.

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© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)