Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region
This report summarizes work conducted in FY2007-FY2008 to conduct marine mammal monitoring and habitat investigations in the southern California offshore region. The report describes marine mammal monitoring results during quarterly cruises, and models how physical and biological oceanographic condi...
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ftdtic:ADA501637 2023-05-15T17:10:15+02:00 Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region Hildebrand, John SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB 2009-06 text/html http://www.dtic.mil/docs/citations/ADA501637 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA501637 en eng http://www.dtic.mil/docs/citations/ADA501637 Approved for public release; distribution is unlimited. DTIC Biological Oceanography *AQUATIC ANIMALS WHALES DETECTION MAMMALS MONITORING FINITE ELEMENT ANALYSIS OCEANOGRAPHIC DATA SOUND TRANSMISSION CLASSIFICATION ACOUSTICS CALIFORNIA ANATOMY HABITATS SURFACE TEMPERATURE OFFSHORE ALGORITHMS COMPUTERIZED SIMULATION Text 2009 ftdtic 2016-02-22T20:27:26Z This report summarizes work conducted in FY2007-FY2008 to conduct marine mammal monitoring and habitat investigations in the southern California offshore region. The report describes marine mammal monitoring results during quarterly cruises, and models how physical and biological oceanographic conditions affect marine mammal habitat. Additionally, progress with constructing automatic detection and classification algorithms for acoustic monitoring of marine mammals is summarized, as is work on finite element modeling of acoustic propagation within the bodies of beaked whales and related marine mammals. Some highlights: [1] Data collected (July 2004-March 2008) support the hypothesis that distributions of foraging large whales are linked to cold surface temperatures. However, winter distributions of migrating large whales don't appear to be related to habitat variables analyzed herein, and may be harder to predict based on oceanographic data. [2] A species classifier which decides whether short groups of clicks are produced by one or more individuals from three particular species is presented. The system uses the Teager energy operator and cepstral analysis. [3] Anatomical investigations and computer finite element modeling with marine mammal bodies were conducted, which resulted in two methodological advancements and the addition of more beaked whale species to the Digital Library of Anatomy. Sponsored in part by CNO(N45). Text Marine Mammal Monitoring Defense Technical Information Center: DTIC Technical Reports database |
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Defense Technical Information Center: DTIC Technical Reports database |
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English |
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Biological Oceanography *AQUATIC ANIMALS WHALES DETECTION MAMMALS MONITORING FINITE ELEMENT ANALYSIS OCEANOGRAPHIC DATA SOUND TRANSMISSION CLASSIFICATION ACOUSTICS CALIFORNIA ANATOMY HABITATS SURFACE TEMPERATURE OFFSHORE ALGORITHMS COMPUTERIZED SIMULATION |
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Biological Oceanography *AQUATIC ANIMALS WHALES DETECTION MAMMALS MONITORING FINITE ELEMENT ANALYSIS OCEANOGRAPHIC DATA SOUND TRANSMISSION CLASSIFICATION ACOUSTICS CALIFORNIA ANATOMY HABITATS SURFACE TEMPERATURE OFFSHORE ALGORITHMS COMPUTERIZED SIMULATION Hildebrand, John Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region |
topic_facet |
Biological Oceanography *AQUATIC ANIMALS WHALES DETECTION MAMMALS MONITORING FINITE ELEMENT ANALYSIS OCEANOGRAPHIC DATA SOUND TRANSMISSION CLASSIFICATION ACOUSTICS CALIFORNIA ANATOMY HABITATS SURFACE TEMPERATURE OFFSHORE ALGORITHMS COMPUTERIZED SIMULATION |
description |
This report summarizes work conducted in FY2007-FY2008 to conduct marine mammal monitoring and habitat investigations in the southern California offshore region. The report describes marine mammal monitoring results during quarterly cruises, and models how physical and biological oceanographic conditions affect marine mammal habitat. Additionally, progress with constructing automatic detection and classification algorithms for acoustic monitoring of marine mammals is summarized, as is work on finite element modeling of acoustic propagation within the bodies of beaked whales and related marine mammals. Some highlights: [1] Data collected (July 2004-March 2008) support the hypothesis that distributions of foraging large whales are linked to cold surface temperatures. However, winter distributions of migrating large whales don't appear to be related to habitat variables analyzed herein, and may be harder to predict based on oceanographic data. [2] A species classifier which decides whether short groups of clicks are produced by one or more individuals from three particular species is presented. The system uses the Teager energy operator and cepstral analysis. [3] Anatomical investigations and computer finite element modeling with marine mammal bodies were conducted, which resulted in two methodological advancements and the addition of more beaked whale species to the Digital Library of Anatomy. Sponsored in part by CNO(N45). |
author2 |
SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB |
format |
Text |
author |
Hildebrand, John |
author_facet |
Hildebrand, John |
author_sort |
Hildebrand, John |
title |
Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region |
title_short |
Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region |
title_full |
Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region |
title_fullStr |
Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region |
title_full_unstemmed |
Marine Mammal Acoustic Monitoring and Habitat Investigation, Southern California Offshore Region |
title_sort |
marine mammal acoustic monitoring and habitat investigation, southern california offshore region |
publishDate |
2009 |
url |
http://www.dtic.mil/docs/citations/ADA501637 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA501637 |
genre |
Marine Mammal Monitoring |
genre_facet |
Marine Mammal Monitoring |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA501637 |
op_rights |
Approved for public release; distribution is unlimited. |
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1766066823451639808 |