ME70 Water Column Sonar Data Collected During SH1005

Description

Shimada Seamount Mapping. The ME70 survey was conducted with repeated coverage of the shallow part of the seamount, operating the ME70 in two configurations. One configuration was optimized for water-column and seabed mapping to a range of about 300 m, and the other for seabed mapping to a range of 500 m. Initially, the ship followed the 500-m contour around the bank to define its spatial extent. Survey waypoints were revised to match the extent, and the ship then followed the parallel survey lines over the top of the bank. The ME70 and EK60s were operated and recorded to ranges of 1000 m. The operational and recorded range for the initial transit around the seamount o enable seabed detections to 500 m for ME70 beams steered near 45 deg. angles from vertical. Triggering was synchronous, with the ME70 trigger set as master controlling the EK60 trigger and the delay set to 0-ms. ME70 was operated at high power. Motion compensation for the ME70 was active with motion data supplied from an Applanix POSMV model MV V4, via serial port. Position data to the ME70 and EK60 were from a MX Marine MX 420 Navigation System GPS with differential correction. Data were recorded in Simrad raw format (.raw files) for the ME70 and EK60.

Resources

Name Format Description Link
0 Interactive map viewer to allow discovery and access to water column sonar data https://www.ncei.noaa.gov/maps/water-column-sonar/index.html?surveys=SH1005&instruments=ME70
0 Web page containing information on the water column sonar data archive. https://www.ngdc.noaa.gov/mgg/wcd/
0 AWS Cloud Storage provides additional public access to water column sonar data through the NOAA Big Data Project https://registry.opendata.aws/ncei-wcsd-archive/
0 Information for contacts at NCEI. https://www.ncei.noaa.gov/contact
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
33 Publication of Sea Areas is maintained by IHO. http://www.iho-ohi.net/iho_pubs/standard/S-23/S23_1953.pdf
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0 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. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords

Tags

  • water column
  • vertical location
  • acoustic scattering
  • water column mapping system
  • north pacific ocean
  • benthic
  • ecosystems
  • nesdis
  • biosphere
  • bathymetry
  • in situ/laboratory instruments
  • oceans
  • national geophysical data center
  • noaa
  • marine ecosystems
  • aquatic sciences
  • u.s. department of commerce
  • profilers/sounders
  • earth science
  • acoustic sounders
  • national marine fisheries service
  • doc/noaa/nesdis/ngdc
  • bathymetry/seafloor topography
  • aquatic ecosystems
  • doc/noaa/nesdis/ncei
  • fisheries
  • doc/noaa/nmfs
  • pelagic
  • wcms
  • seafloor topography
  • national centers for environmental information
  • ocean acoustics

Topics

Categories