Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine
The vocalization source level distributions and pulse compression gains are estimated for four distinct baleen whale species in the Gulf of Maine: fin, sei, minke and an unidentified baleen whale species. The vocalizations were received on a large-aperture densely-sampled coherent hydrophone array s...
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ftdoajarticles:oai:doaj.org/article:5117d53f0c774621adc0ea5f32f4a842 2023-05-15T15:36:49+02:00 Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine Delin Wang Wei Huang Heriberto Garcia Purnima Ratilal 2016-10-01T00:00:00Z https://doi.org/10.3390/rs8110881 https://doaj.org/article/5117d53f0c774621adc0ea5f32f4a842 EN eng MDPI AG http://www.mdpi.com/2072-4292/8/11/881 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs8110881 https://doaj.org/article/5117d53f0c774621adc0ea5f32f4a842 Remote Sensing, Vol 8, Iss 11, p 881 (2016) baleen whale vocalization source level pulse compression Science Q article 2016 ftdoajarticles https://doi.org/10.3390/rs8110881 2022-12-30T20:32:29Z The vocalization source level distributions and pulse compression gains are estimated for four distinct baleen whale species in the Gulf of Maine: fin, sei, minke and an unidentified baleen whale species. The vocalizations were received on a large-aperture densely-sampled coherent hydrophone array system useful for monitoring marine mammals over instantaneous wide areas via the passive ocean acoustic waveguide remote sensing technique. For each baleen whale species, between 125 and over 1400 measured vocalizations with significantly high Signal-to-Noise Ratios (SNR > 10 dB) after coherent beamforming and localized with high accuracies (<10% localization errors) over ranges spanning roughly 1 km–30 km are included in the analysis. The whale vocalization received pressure levels are corrected for broadband transmission losses modeled using a calibrated parabolic equation-based acoustic propagation model for a random range-dependent ocean waveguide. The whale vocalization source level distributions are characterized by the following means and standard deviations, in units of dB re 1 μ Pa at 1 m: 181.9 ± 5.2 for fin whale 20-Hz pulses, 173.5 ± 3.2 for sei whale downsweep chirps, 177.7 ± 5.4 for minke whale pulse trains and 169.6 ± 3.5 for the unidentified baleen whale species downsweep calls. The broadband vocalization equivalent pulse-compression gains are found to be 2.5 ± 1.1 for fin whale 20-Hz pulses, 24 ± 10 for the unidentified baleen whale species downsweep calls and 69 ± 23 for sei whale downsweep chirps. These pulse compression gains are found to be roughly proportional to the inter-pulse intervals of the vocalizations, which are 11 ± 5 s for fin whale 20-Hz pulses, 29 ± 18 for the unidentified baleen whale species downsweep calls and 52 ± 33 for sei whale downsweep chirps. The source level distributions and pulse compression gains are essential for determining signal-to-noise ratios and hence detection regions for baleen whale vocalizations received passively on underwater acoustic sensing systems, ... Article in Journal/Newspaper baleen whale Fin whale minke whale Sei Whale Directory of Open Access Journals: DOAJ Articles Remote Sensing 8 11 881 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
baleen whale vocalization source level pulse compression Science Q |
spellingShingle |
baleen whale vocalization source level pulse compression Science Q Delin Wang Wei Huang Heriberto Garcia Purnima Ratilal Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine |
topic_facet |
baleen whale vocalization source level pulse compression Science Q |
description |
The vocalization source level distributions and pulse compression gains are estimated for four distinct baleen whale species in the Gulf of Maine: fin, sei, minke and an unidentified baleen whale species. The vocalizations were received on a large-aperture densely-sampled coherent hydrophone array system useful for monitoring marine mammals over instantaneous wide areas via the passive ocean acoustic waveguide remote sensing technique. For each baleen whale species, between 125 and over 1400 measured vocalizations with significantly high Signal-to-Noise Ratios (SNR > 10 dB) after coherent beamforming and localized with high accuracies (<10% localization errors) over ranges spanning roughly 1 km–30 km are included in the analysis. The whale vocalization received pressure levels are corrected for broadband transmission losses modeled using a calibrated parabolic equation-based acoustic propagation model for a random range-dependent ocean waveguide. The whale vocalization source level distributions are characterized by the following means and standard deviations, in units of dB re 1 μ Pa at 1 m: 181.9 ± 5.2 for fin whale 20-Hz pulses, 173.5 ± 3.2 for sei whale downsweep chirps, 177.7 ± 5.4 for minke whale pulse trains and 169.6 ± 3.5 for the unidentified baleen whale species downsweep calls. The broadband vocalization equivalent pulse-compression gains are found to be 2.5 ± 1.1 for fin whale 20-Hz pulses, 24 ± 10 for the unidentified baleen whale species downsweep calls and 69 ± 23 for sei whale downsweep chirps. These pulse compression gains are found to be roughly proportional to the inter-pulse intervals of the vocalizations, which are 11 ± 5 s for fin whale 20-Hz pulses, 29 ± 18 for the unidentified baleen whale species downsweep calls and 52 ± 33 for sei whale downsweep chirps. The source level distributions and pulse compression gains are essential for determining signal-to-noise ratios and hence detection regions for baleen whale vocalizations received passively on underwater acoustic sensing systems, ... |
format |
Article in Journal/Newspaper |
author |
Delin Wang Wei Huang Heriberto Garcia Purnima Ratilal |
author_facet |
Delin Wang Wei Huang Heriberto Garcia Purnima Ratilal |
author_sort |
Delin Wang |
title |
Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine |
title_short |
Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine |
title_full |
Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine |
title_fullStr |
Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine |
title_full_unstemmed |
Vocalization Source Level Distributions and Pulse Compression Gains of Diverse Baleen Whale Species in the Gulf of Maine |
title_sort |
vocalization source level distributions and pulse compression gains of diverse baleen whale species in the gulf of maine |
publisher |
MDPI AG |
publishDate |
2016 |
url |
https://doi.org/10.3390/rs8110881 https://doaj.org/article/5117d53f0c774621adc0ea5f32f4a842 |
genre |
baleen whale Fin whale minke whale Sei Whale |
genre_facet |
baleen whale Fin whale minke whale Sei Whale |
op_source |
Remote Sensing, Vol 8, Iss 11, p 881 (2016) |
op_relation |
http://www.mdpi.com/2072-4292/8/11/881 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs8110881 https://doaj.org/article/5117d53f0c774621adc0ea5f32f4a842 |
op_doi |
https://doi.org/10.3390/rs8110881 |
container_title |
Remote Sensing |
container_volume |
8 |
container_issue |
11 |
container_start_page |
881 |
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1766367239572815872 |