DocumentCode
2929958
Title
Acoustic noise measurements of icebergs
Author
Mille, John D. ; Nazarenko, Dennis M. ; Noble, Michael
Author_Institution
Petro-Canada Resources, Calgary, Alberta, Canada
fYear
1985
fDate
12-14 Nov. 1985
Firstpage
460
Lastpage
463
Abstract
Results are presented from a program during which the acoustic noise intensity measurements of icebergs were obtained. These data, collected on freely floating icebergs in the Labrador Sea, were analyzed to present time series of intensity and one third octave band noise level statistics. Three characteristic noises attributable to icebergs were identified; a low frequency groan or rumble, a mid to high frequency squeak and a high frequency pop. Using the observed intensity levels in conjunction with a simple model of acoustic transmission resulted in an estimated range of detection, utilizing passive means, of 1400 meters.
Keywords
Acoustic measurements; Acoustic noise; Acoustic signal detection; Calibration; Frequency estimation; Frequency measurement; Helicopters; Ice; Sea measurements; Sonar equipment;
fLanguage
English
Publisher
ieee
Conference_Titel
OCEANS '85 - Ocean Engineering and the Environment
Conference_Location
San Diego, CA, USA
Type
conf
DOI
10.1109/OCEANS.1985.1160106
Filename
1160106
Link To Document