Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000861517> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W2000861517 endingPage "2399" @default.
- W2000861517 startingPage "2399" @default.
- W2000861517 abstract "Records from whaling ships in the Gulf of Alaska indicate that sperm whales were present in summer but were much less common in winter. These records could have been biased, perhaps strongly, by seasonal conditions: ships were less likely to be present in winter than summer, and sighting conditions may have been worse in winter. To obtain an independent and newer estimate of sperm whale seasonality, six autonomous hydrophone recorders were deployed for one year. After retrieval, recordings were analyzed automatically to detect sperm whale sounds. The detection technique comprised several successive stages: spectral transform, noise cancellation, band-limited energy summation, periodic autocorrelation, and thresholding. The autocorrelation step was highly effective for distinguishing between sounds of sperm whales and noise sources. The detection threshold was set so that, in test data, no noise sources were detected and approximately 2/3 of known sperm whale sounds were detected. Use of such a high threshold allows for an accurate index of sperm whale seasonal and geographic occurrence. Results indicate that sperm whales are indeed present in winter in the Gulf of Alaska. Use of automatic acoustic detection allows results to be replicated in the future." @default.
- W2000861517 created "2016-06-24" @default.
- W2000861517 creator A5024883742 @default.
- W2000861517 creator A5038975095 @default.
- W2000861517 creator A5044865532 @default.
- W2000861517 creator A5048305295 @default.
- W2000861517 date "2002-10-25" @default.
- W2000861517 modified "2023-09-25" @default.
- W2000861517 title "Automatic detection of sperm whale sounds from the Gulf of Alaska" @default.
- W2000861517 doi "https://doi.org/10.1121/1.4779787" @default.
- W2000861517 hasPublicationYear "2002" @default.
- W2000861517 type Work @default.
- W2000861517 sameAs 2000861517 @default.
- W2000861517 citedByCount "1" @default.
- W2000861517 countsByYear W20008615172018 @default.
- W2000861517 crossrefType "journal-article" @default.
- W2000861517 hasAuthorship W2000861517A5024883742 @default.
- W2000861517 hasAuthorship W2000861517A5038975095 @default.
- W2000861517 hasAuthorship W2000861517A5044865532 @default.
- W2000861517 hasAuthorship W2000861517A5048305295 @default.
- W2000861517 hasConcept C111368507 @default.
- W2000861517 hasConcept C115961682 @default.
- W2000861517 hasConcept C127313418 @default.
- W2000861517 hasConcept C154945302 @default.
- W2000861517 hasConcept C2776123653 @default.
- W2000861517 hasConcept C2776328434 @default.
- W2000861517 hasConcept C2777704720 @default.
- W2000861517 hasConcept C2777803996 @default.
- W2000861517 hasConcept C2778063876 @default.
- W2000861517 hasConcept C2781087480 @default.
- W2000861517 hasConcept C39432304 @default.
- W2000861517 hasConcept C41008148 @default.
- W2000861517 hasConcept C505870484 @default.
- W2000861517 hasConcept C519069842 @default.
- W2000861517 hasConcept C55493867 @default.
- W2000861517 hasConcept C59822182 @default.
- W2000861517 hasConcept C86803240 @default.
- W2000861517 hasConcept C99498987 @default.
- W2000861517 hasConceptScore W2000861517C111368507 @default.
- W2000861517 hasConceptScore W2000861517C115961682 @default.
- W2000861517 hasConceptScore W2000861517C127313418 @default.
- W2000861517 hasConceptScore W2000861517C154945302 @default.
- W2000861517 hasConceptScore W2000861517C2776123653 @default.
- W2000861517 hasConceptScore W2000861517C2776328434 @default.
- W2000861517 hasConceptScore W2000861517C2777704720 @default.
- W2000861517 hasConceptScore W2000861517C2777803996 @default.
- W2000861517 hasConceptScore W2000861517C2778063876 @default.
- W2000861517 hasConceptScore W2000861517C2781087480 @default.
- W2000861517 hasConceptScore W2000861517C39432304 @default.
- W2000861517 hasConceptScore W2000861517C41008148 @default.
- W2000861517 hasConceptScore W2000861517C505870484 @default.
- W2000861517 hasConceptScore W2000861517C519069842 @default.
- W2000861517 hasConceptScore W2000861517C55493867 @default.
- W2000861517 hasConceptScore W2000861517C59822182 @default.
- W2000861517 hasConceptScore W2000861517C86803240 @default.
- W2000861517 hasConceptScore W2000861517C99498987 @default.
- W2000861517 hasIssue "5_Supplement" @default.
- W2000861517 hasLocation W20008615171 @default.
- W2000861517 hasOpenAccess W2000861517 @default.
- W2000861517 hasPrimaryLocation W20008615171 @default.
- W2000861517 hasRelatedWork W1992370703 @default.
- W2000861517 hasRelatedWork W2000861517 @default.
- W2000861517 hasRelatedWork W2064813567 @default.
- W2000861517 hasRelatedWork W2136602405 @default.
- W2000861517 hasRelatedWork W2140121303 @default.
- W2000861517 hasRelatedWork W2144386592 @default.
- W2000861517 hasRelatedWork W2187750754 @default.
- W2000861517 hasRelatedWork W2323089429 @default.
- W2000861517 hasRelatedWork W2393730919 @default.
- W2000861517 hasRelatedWork W4296554104 @default.
- W2000861517 hasVolume "112" @default.
- W2000861517 isParatext "false" @default.
- W2000861517 isRetracted "false" @default.
- W2000861517 magId "2000861517" @default.
- W2000861517 workType "article" @default.