Data provided by National Oceanic and Atmospheric Administration
Multi-frequency (18-, 38-, 70-, 120-, and 200-kHz) General Purpose Transceivers (Simrad EK60 GPTs), were configured with split-beam transducers (Simrad ES18-11, ES38B, ES70-7C, ES120-7C, and ES200-7C, respectively). The transducers were mounted on the bottom of a retractable keel or “centerboard”. The keel was retracted (~ 5-m depth) during calibration, and extended to the intermediate position (~7-m depth) during the survey. Exceptions were made during shallow water operations, when the keel was retracted to ~ 5-m depth; or during times of heavy weather, when the keel was extended to ~9-m depth to provide extra stability and reduce the e˙ect of weather-generated noise.
Final Spring 2015 Survey Report: https://repository.library.noaa.gov/view/noaa/15392
About this Dataset
Updated: 2025-03-04
Metadata Last Updated:
2025-03-02T12:05:11.769Z
Date Created:
N/A
Data Provided by:
Dataset Owner:
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| Title | EK60 Water Column Sonar Data Collected During RL1503 |
|---|---|
| Description | Multi-frequency (18-, 38-, 70-, 120-, and 200-kHz) General Purpose Transceivers (Simrad EK60 GPTs), were configured with split-beam transducers (Simrad ES18-11, ES38B, ES70-7C, ES120-7C, and ES200-7C, respectively). The transducers were mounted on the bottom of a retractable keel or “centerboard”. The keel was retracted (~ 5-m depth) during calibration, and extended to the intermediate position (~7-m depth) during the survey. Exceptions were made during shallow water operations, when the keel was retracted to ~ 5-m depth; or during times of heavy weather, when the keel was extended to ~9-m depth to provide extra stability and reduce the e˙ect of weather-generated noise. Final Spring 2015 Survey Report: https://repository.library.noaa.gov/view/noaa/15392 |
| Modified | 2025-03-02T12:05:11.769Z |
| 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 , North Pacific Ocean , 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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