Bocaccio Sound Production Recorded at SanctSoundSite CI01_02
This record represents bocaccio calls detection from raw passive acoustic data. Calls were detected automatically using Triton's Fish Detector. Recordings were first decimated to a sample rate of 2 kHz. The fish detector filtered the time series between 100 and 950 Hz, and computed cross-correlation between the envelope of a filtered example call and 75s of the envelope of the filtered time series. To detect signals within varying background noise, we used a floating threshold of the median cross correlation value over the current 75 s of data, with a threshold offset of 2e-9 above the median. Detections were evaluated if they reached above this threshold. Consecutive calls were required to have a minimum time gap of 0.5 s to be detected separately. RMS received level was computed over the potential detection period and a time series of the length of the bocaccio call template before and after the detection. Detections were considered false and discarded if the signal-to-noise ratio between the detection period and the timeseries before and after the detection was less than 0.01. The threshold was evaluated based on the distribution of histograms of manually verified true and false detections. A trained analyst verified the detections as true or false.These data were recorded at SanctSound Site CI01_02 between March 25, 2019 and August 04, 2019.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
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"fn": "NOAA National Centers for Environmental Information",
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"hasEmail": "mailto:ncei.info@noaa.gov"
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|
| describedByType | application/octet-steam |
| description | This record represents bocaccio calls detection from raw passive acoustic data. Calls were detected automatically using Triton's Fish Detector. Recordings were first decimated to a sample rate of 2 kHz. The fish detector filtered the time series between 100 and 950 Hz, and computed cross-correlation between the envelope of a filtered example call and 75s of the envelope of the filtered time series. To detect signals within varying background noise, we used a floating threshold of the median cross correlation value over the current 75 s of data, with a threshold offset of 2e-9 above the median. Detections were evaluated if they reached above this threshold. Consecutive calls were required to have a minimum time gap of 0.5 s to be detected separately. RMS received level was computed over the potential detection period and a time series of the length of the bocaccio call template before and after the detection. Detections were considered false and discarded if the signal-to-noise ratio between the detection period and the timeseries before and after the detection was less than 0.01. The threshold was evaluated based on the distribution of histograms of manually verified true and false detections. A trained analyst verified the detections as true or false.These data were recorded at SanctSound Site CI01_02 between March 25, 2019 and August 04, 2019. |
| distribution |
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"title": "NOAA-Navy Sanctuary Soundscape Monitoring Project, Bocaccio Sound Production, Channel Islands, SanctSound_CI01_02_bocaccio",
"accessURL": "https://coastwatch.pfeg.noaa.gov/erddap/griddap/noaaSanctSound_CI01_02_bocaccio.html",
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"title": "Sound Monitoring",
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"description": "NOAA and the U.S. Navy are working to better understand underwater sound within the U.S. National Marine Sanctuary System. From 2018 to 2021, these agencies will work with numerous scientific partners to study sound within seven national marine sanctuaries and one marine national monument, which includes waters off Hawai'i and the east and west coasts. Standardized measurements will assess sounds produced by marine animals, physical processes (e.g., wind and waves), and human activities. Collectively, this information will help NOAA and the Navy measure sound levels and baseline acoustic conditions in sanctuaries. This work is a continuation of ongoing Navy and NOAA research, including efforts by NOAA's Office of National Marine Sanctuaries This dataset represents the derived products from the raw acoustic data that are archived at NOAA National Centers for Environmental Information.",
"downloadURL": "https://sanctuaries.noaa.gov/science/monitoring/sound/",
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"downloadURL": "https://earthdata.nasa.gov/earth-observation-data/find-data/idn/gcmd-keywords",
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|
| identifier | gov.noaa.ncei.pad:NOAA-Navy-SanctSound_CI01_02_bocaccio |
| isPartOf | NOAA-Navy Sanctuary Soundscapes Monitoring Project (SanctSound) |
| issued | 2022-04-15T00:00:00.000+00:00 |
| keyword |
[
"Earth Science > Biological Classification > Animals/Vertebrates > Fish",
"Earth Science > Biological Classification > Animals/Invertebrates",
"Earth Science > Biological Classification > Animals/Vertebrates > Mammals > Cetaceans",
"Earth Science > Oceans > Ocean Acoustics",
"Earth Science Oceans > Aquatic Sciences > Fisheries",
"Earth Science > Oceans > Marine Environment Monitoring",
"Earth Science > Oceans > Ocean Acoustics > Ambient Noise",
"Earth Science > Biosphere > Aquatic Ecosystems",
"Earth Science > Biosphere > Aquatic Ecosystems > Marine Habitat",
"Ocean > Pacific Ocean > Eastern Pacific Ocean",
"Vertical Location > Water Column",
"Fixed Observation Stations",
"Recorders/Loggers > Passive Acoustic Recorder",
"Acoustic Sounders > Hydrophones",
"SanctSound > NOAA-Navy Sanctuary Soundscapes Monitoring Project",
"DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
"DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
"DOD/USNAVY > U.S. Navy, U.S. Department of Defense",
"DOC/NOAA/NOS/NMS > National Marine Sanctuaries, National Ocean Service, NOAA, U.S. Department of Commerce"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2022-04-15T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| references |
[
"https://sanctuaries.noaa.gov/science/monitoring/sound/"
]
|
| rights | otherRestrictions |
| spatial | -120.08105,34.0438,-120.08105,34.0438 |
| temporal | 2019-03-25T23:00:00+00:00/2019-08-04T02:00:00+00:00 |
| title | Bocaccio Sound Production Recorded at SanctSoundSite CI01_02 |
