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ftnortheast:/neu:m041qx08k
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openpolar
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ftnortheast:/neu:m041qx08k 2023-05-15T16:13:17+02:00 Temporal-Spatial Distributions for a Repertoire of Fin Whale Vocalizations From Directional Sensing with a Coherent Hydrophone Array http://hdl.handle.net/2047/D20251387 unknown http://hdl.handle.net/2047/D20251389 ftnortheast 2020-04-11T22:30:30Z The ability to monitor and differentiate vocalizations from a given marine mammal species can be challenging with single sensor measurements when there are multiple marine mammal species vocalizing in close proximity and when the vocalizations have not been observed or documented previously. Here we employ a large-aperature coherent hydrophone array system with directional sensing to detect, localize, and classify a repertoire of fin whale vocalizations using the passive ocean acoustic waveguide remote sensing (POAWRS) technique. The fin whale vocalizations are comprised of their characteristic 20 Hz centered pulses, interspersed by 130 Hz centered upsweep calls, and other vocalizations with frequencies ranging between 40-80 Hz. The directional sensing ability of POAWRS is essential for associating various call types to fin whales after long term tracking of the vocalization bearing-time trajectories and localizations over multiple diel cycles. Here we quantify the relative diel occurrence of the three distinct fin vocalization types and apply the results to infer their behaviors as a function of the observation region. Other/Unknown Material Fin whale Northeastern University, Boston: DRS - Digital Repository Service
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institution |
Open Polar
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collection |
Northeastern University, Boston: DRS - Digital Repository Service
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ftnortheast
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language |
unknown
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description |
The ability to monitor and differentiate vocalizations from a given marine mammal species can be challenging with single sensor measurements when there are multiple marine mammal species vocalizing in close proximity and when the vocalizations have not been observed or documented previously. Here we employ a large-aperature coherent hydrophone array system with directional sensing to detect, localize, and classify a repertoire of fin whale vocalizations using the passive ocean acoustic waveguide remote sensing (POAWRS) technique. The fin whale vocalizations are comprised of their characteristic 20 Hz centered pulses, interspersed by 130 Hz centered upsweep calls, and other vocalizations with frequencies ranging between 40-80 Hz. The directional sensing ability of POAWRS is essential for associating various call types to fin whales after long term tracking of the vocalization bearing-time trajectories and localizations over multiple diel cycles. Here we quantify the relative diel occurrence of the three distinct fin vocalization types and apply the results to infer their behaviors as a function of the observation region.
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title |
Temporal-Spatial Distributions for a Repertoire of Fin Whale Vocalizations From Directional Sensing with a Coherent Hydrophone Array
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spellingShingle |
Temporal-Spatial Distributions for a Repertoire of Fin Whale Vocalizations From Directional Sensing with a Coherent Hydrophone Array
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title_short |
Temporal-Spatial Distributions for a Repertoire of Fin Whale Vocalizations From Directional Sensing with a Coherent Hydrophone Array
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title_full |
Temporal-Spatial Distributions for a Repertoire of Fin Whale Vocalizations From Directional Sensing with a Coherent Hydrophone Array
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title_fullStr |
Temporal-Spatial Distributions for a Repertoire of Fin Whale Vocalizations From Directional Sensing with a Coherent Hydrophone Array
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title_full_unstemmed |
Temporal-Spatial Distributions for a Repertoire of Fin Whale Vocalizations From Directional Sensing with a Coherent Hydrophone Array
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title_sort |
temporal-spatial distributions for a repertoire of fin whale vocalizations from directional sensing with a coherent hydrophone array
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url |
http://hdl.handle.net/2047/D20251387
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genre |
Fin whale
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genre_facet |
Fin whale
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op_relation |
http://hdl.handle.net/2047/D20251389
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_version_ |
1765998951598653440
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