Mono-hydrophone localization of baleen whales: a study of propagation using a spectral element method applied in Northern Chile
| Autor: | Julie Patris, Hervé Glotin, Macarena Santos, Susannah J. Buchan, Dimitri Komatitsch, Mark Asch, Maritza Sepúlveda, Franck Malige |
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| Přispěvatelé: | DYNamiques de l’Information (DYNI), Laboratoire d'Informatique et Systèmes (LIS), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Ondes et Imagerie (O&I), Laboratoire de Mécanique et d'Acoustique [Marseille] (LMA ), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM), Universidad de Concepción [Chile], Laboratoire Amiénois de Mathématique Fondamentale et Appliquée (LAMFA), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), PNRIA, Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Universidad de Concepción - University of Concepcion [Chile] |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Balaenoptera musculus source localization Hydrophone biology Whale Bioacoustics 010604 marine biology & hydrobiology Spectral element method acoustic propagation Context (language use) biology.organism_classification 010603 evolutionary biology 01 natural sciences [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] bioacoustics underwater acoustics Baleen biology.animal 14. Life underwater Underwater acoustics Seismology Geology |
| Zdroj: | OCEANS 2019-Marseille Oceans 2019 Oceans 2019, Jun 2019, Marseille, France. ⟨10.1109/OCEANSE.2019.8867333⟩ |
| DOI: | 10.1109/oceanse.2019.8867333 |
| Popis: | International audience; In the context of passive acoustic monitoring of large whales, we propose a new method for localizing blue whales (Balaenoptera musculus) from the acoustic recordings of only one sensor. We use a precise modelling of the sound propagation thanks to SPECFEM, a spectral element code for solving wave propagation equations. Based on field measurements in Northern Chile, we ran a simulation on a large supercomputer. We also exploited a recording device, Bombyx II, for one and a half months, with visual monitoring of the zone by a group of experts. We find that the method applied to the south east Pacific song of blue whales gives theoretical results of about 50% success in position recovery. Since we have redundancy in our data, we were able to locate the whale with a precision of 500 m over a box of 10 km by 5 km in the case when we have both visual detection and a strong acoustic signal. More tests should be performed before validating this method, but these first results are encouraging. |
| Databáze: | OpenAIRE |
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