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Acoustic-Trawl Survey of Walleye Pollock in the Gulf of Alaska (DY1503, EK60)
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The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National
Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted
an acoustic-trawl (AT) stock assessment survey in the Shelikof Strait, Marmot Bay,
and Chirikof shelf break areas of the Gulf of Alaska (GOA) during late winter/early
spring of 2015 to estimate the distribution and abundance of walleye pollock (Gadus
chalcogrammus). The survey was conducted 15-31 March (Marmot Bay, 15-16 March; Shelikof
Strait 17-23 March; Chirikof shelf break, 23-24 March), starting and ending in Kodiak,
Alaska. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler
equipped with acoustic and oceanographic instrumentation. The primary instrument for
the survey was a Simrad EK60 split-beam echosounder system utilizing five frequencies
(18, 38, 70, 120, and 200 kHz).
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Acoustic-Trawl Survey of Walleye Pollock in the Gulf of Alaska (DY1503, EK60) |
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DY1503_EK60 doi:10.7289/V53R0QT2
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Applanix POS/MV 320 |
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POS/MV 320
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European Petroleum Survey Group (EPSG) Geodetic Parameter Registry |
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GCMD Data Center Keywords |
Global Change Master Directory (GCMD) Data Center Keywords |
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NASA/GCMD Instrument Keywords |
Global Change Master Directory (GCMD) Instrument Keywords |
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No Title |
Global Change Master Directory (GCMD) Location Keywords |
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NASA/GCMD Science Keywords |
Global Change Master Directory (GCMD) Science Keywords |
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IHO Sea Areas |
International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas"
publication S-23) |
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Knudsen CHIRP 3260 |
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CHIRP 3260
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Lockheed Martin Sippican eXpendable BathyThermograph/eXpendable Sound Velocimeter |
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Sippican XBT/XSV
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NOAA Ship Oscar Dyson (R224) |
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Sea-Bird Electronics 32 Carousel Water Sampler |
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SBE 32
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Sea-Bird Electronics 49 FastCAT CTD Sensor |
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SBE 49 FastCAT
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Sea-Bird Electronics 911plus CTD |
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SBE 911plus CTD
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Simrad EK60 Echosounder |
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EK60
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Simrad ES60 Echosounder |
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ES60
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Simrad ME70 Echosounder |
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ME70
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http://knudseneng.com/products/chirp_3260 |
Chirp 3260 Echosounder |
Chirp 3260 Echosounder information |
information |
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http://maps.ngdc.noaa.gov/viewers/water_column_sonar/ |
Water Column Sonar Data Map Viewer |
Interactive map viewer to allow discovery and access to water column sonar data |
search |
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http://www.applanix.com/products/marine.html |
POS/MV 320 |
POS/MV 320 information |
information |
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http://www.epsg-registry.org/ |
European Petroleum Survey Group Geodetic Parameter Dataset |
Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured
dataset of Coordinate Reference Systems and Coordinate Transformations. |
search |
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http://www.seabird.com/products/WaterSamplers.htm |
SBE 32 |
SBE 32 Information |
information |
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http://www.seabird.com/products/profilers.htm |
SBE 49 FastCAT information |
Information on the SBE 49 FastCAT |
information |
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http://www.simrad.com/www/01/nokbg0240.nsf/AllWeb/A25148D8E9F00D0DC12570DE0050A7CB?OpenDocument |
Simrad EK60 Scientific echo sounder |
Information on the Simrad EK60 including file format documentation. |
information |
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https://iho.int/ |
International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas"
publication S-23) |
Publication of Sea Areas is maintained by IHO. |
information |
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https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords |
Global Change Master Directory (GCMD) Keywords |
The information provided on this page seeks to define how the GCMD Keywords are structured,
used and accessed. It also provides information on how users can participate in the
further development of the keywords. |
information |
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https://www.lockheedmartin.com/content/dam/lockheed/data/ms2/documents/ocean/20050054_XBT_XSV_reader_page.pdf |
Lockheed Martin Sippican eXpendable BathyThermograph/eXpendable Sound Velocimeter |
Lockheed Martin Sippican eXpendable BathyThermograph/eXpendable Sound Velocimeter
information |
information |
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https://www.ncei.noaa.gov/waf/OER-Media/EXCTD/EX_CTD_Junction_Connector_Configuration_and_Voltage_Channel_Setup-2020_Field_Season-OER_%20NCEI_Version.pdf |
SBE 911plus CTD |
SBE 911plus CTD information |
information |
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https://www.simrad.online/ek60/ref_english/default.htm |
Simrad EK60 information |
Information on the Simrad ES60 including file format documentation. |
information |