دورية أكاديمية
Estimating distances to baleen whales using multipath arrivals recorded by individual seafloor seismometers at full ocean depth.
| العنوان: | Estimating distances to baleen whales using multipath arrivals recorded by individual seafloor seismometers at full ocean depth. |
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| المؤلفون: | Hilmo R; School of Oceanography, University of Washington, Seattle, Washington 98195, USA., Wilcock WSD; School of Oceanography, University of Washington, Seattle, Washington 98195, USA. |
| المصدر: | The Journal of the Acoustical Society of America [J Acoust Soc Am] 2024 Feb 01; Vol. 155 (2), pp. 930-951. |
| نوع المنشور: | Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Institute of Physics Country of Publication: United States NLM ID: 7503051 Publication Model: Print Cited Medium: Internet ISSN: 1520-8524 (Electronic) Linking ISSN: 00014966 NLM ISO Abbreviation: J Acoust Soc Am Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Melville, NY : American Institute of Physics Original Publication: Lancaster, Pa. [etc.] : American Institute of Physics for the Acoustical Society of America |
| مواضيع طبية MeSH: | Fin Whale* , Balaenoptera*, Animals ; Vocalization, Animal ; Water ; Oceans and Seas ; Acoustics |
| مستخلص: | Ocean bottom seismometer networks can record opportunistic data sets of 20-Hz fin whale calls. Because networks are often too sparse for multi-station tracking, single-station methods are needed to estimate call density. We investigated a method to range to singing fin whales at full ocean depths using the spacing of water column multiples. Calls were detected by cross-correlating a spectrogram with a template call. To enhance multipath signals, we considered 20-min windows and either summed the spectrograms of all calls aligned on the strongest detection before measuring the multipath spacing or measured the spacing directly from the autocorrelation of the cross correlation time series. We evaluated the methods at five sites with contrasting seafloor and subsurface properties, bathymetric relief, and water depths of 4000-6000 m, using fin whale songs at four sites and a sei whale song at the fifth. The autocorrelation method works best, and ranges can be obtained to >15 km. Ranging at sedimented sites requires careful accounting for subsurface reflections. Ranges have considerable uncertainty in regions of bathymetric relief. The method requires that the time between calls is different from that of the multipaths and does not work reliably when more than one whale is singing nearby. (© 2024 Acoustical Society of America.) |
| المشرفين على المادة: | 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20240211 Date Completed: 20240214 Latest Revision: 20240328 |
| رمز التحديث: | 20240329 |
| DOI: | 10.1121/10.0024615 |
| PMID: | 38341731 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Scitation. | تدمد: | 1520-8524 |
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| DOI: | 10.1121/10.0024615 |