Blue Whale Sound Production Recorded at SanctSound Site MB01_04
This record represents blue whale sound production detected from raw passive acoustic data. Blue whale B calls were detected using Triton's Blue Whale B Call Detector Remora. The detector uses spectrogram correlation (Mellinger and Clark, 2000) to detect calls with a kernel (an average B call) that is generated from a subset of calls. The kernel was calculated from 30 excellent quality B calls that were at least 24 hours apart. A kernel was generated per sanctuary for every six months of data. Kernel quality and optimal threshold settings were tested by running the detector through a subsample of data in which 200-400 calls were manually detected. The comparison between manual and automatic detections was used to calculate precision and recall of the detector, in percentages. Settings were considered optimal when precision and recall were both 85% or higher. These settings were then used to run the detector through the entire dataset for that deployment. Wav files were first decimated to 2 kHz sampling rate. Detector results were manually verified during time periods in which few detections were expected.These data were recorded at SanctSound Site MB01_04 between December 21, 2019 and April 09, 2020.
- Cite as: NOAA Office of National Marine Sanctuaries and U.S Navy. 2021. Blue Whale Sound Production Recorded at SanctSound Site MB01_04, SanctSound Data Products. NOAA National Centers for Environmental Information. https://doi.org/10.25921/7p87-vb06. [access date].
- 10.25921/7p87-vb06
- NCEI Metadata ID: gov.noaa.ncei.pad:NOAA-Navy-SanctSound_MB01_04_bluewhale
gov.noaa.ncei.pad:NOAA-Navy-SanctSound_MB01_04_bluewhale
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Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Carrie Wall
NCEI Passive Acoustic Archive Lead NOAA National Centers for Environmental Information pad.info@noaa.gov |
Coverage Description | Site MB01_04 |
Time Period | 2019-12-21T00:00:00Z to 2020-04-09T16:00:00Z |
Spatial Bounding Box Coordinates |
N: 36.798
S: 36.798
E: -121.976
W: -121.976
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Edition | Final SanctSound Data Product |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | As needed |
Purpose | These data are available to the public for a wide variety of uses including scientific research and analysis. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Platform keywords | Global Change Master Directory (GCMD) Platform Keywords
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Instrument keywords | Global Change Master Directory (GCMD) Instrument Keywords
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Place keywords | Global Change Master Directory (GCMD) Location Keywords
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Project keywords | Global Change Master Directory (GCMD) Project Keywords
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Other Constraints | Cite as: NOAA Office of National Marine Sanctuaries and U.S Navy. 2021. Blue Whale Sound Production Recorded at SanctSound Site MB01_04, SanctSound Data Products. NOAA National Centers for Environmental Information. https://doi.org/10.25921/7p87-vb06. [access date]. |
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Last Modified: 2023-06-15
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