Data provided by National Oceanic and Atmospheric Administration
A bottom moored echosounder was deployed at 116.3 m depth in the NW Bering Sea (61.36881 N, 177.17 W) from 26 July 2019 to 31 August 2020. The mooring was instrumented with a battery powered EK80 wideband autonomous transceiver (WBAT, Simrad AS). The echosounder operated an upwards facing depth-rated 70 kHz 18° split-beam transducer (ES70-18CD), positioned upward with a two-axis gimbal equipped with a 0.7 kg counterweight. During the deployment, the WBAT was programmed to transmit an ensemble of 320 narrowband and 35 wideband every two hours. Data were recorded to a range of 155 m. Calibrations had occured in Seattle, Washington either prior to deployment or after recovery using a 38.1-mm tungsten carbide sphere following the standard sphere method (Demer et al., 2015).
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Updated: 2024-08-20
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2024-08-08T09:21:03.608Z
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| Title | EK80 Water Column Sonar Data Collected During SME120-201901 Deployment |
|---|---|
| Description | A bottom moored echosounder was deployed at 116.3 m depth in the NW Bering Sea (61.36881 N, 177.17 W) from 26 July 2019 to 31 August 2020. The mooring was instrumented with a battery powered EK80 wideband autonomous transceiver (WBAT, Simrad AS). The echosounder operated an upwards facing depth-rated 70 kHz 18° split-beam transducer (ES70-18CD), positioned upward with a two-axis gimbal equipped with a 0.7 kg counterweight. During the deployment, the WBAT was programmed to transmit an ensemble of 320 narrowband and 35 wideband every two hours. Data were recorded to a range of 155 m. Calibrations had occured in Seattle, Washington either prior to deployment or after recovery using a 38.1-mm tungsten carbide sphere following the standard sphere method (Demer et al., 2015). |
| Modified | 2024-08-08T09:21:03.608Z |
| Publisher Name | N/A |
| Contact | N/A |
| Keywords | Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering , Earth Science > Oceans > Aquatic Sciences > Fisheries , Earth Science > Oceans > Ocean Acoustics , Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic , Earth Science > Biosphere > Ecosystems > Marine Ecosystems , Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic , Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems , Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry , Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography , Bering Sea , DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce , DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce , Vertical Location > Water Column , In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System , oceans , geoscientificInformation |
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