2005 EM300 and EM3002D Multibeam Sonar Data from Cruise Hi'ialakai HI-05-08 - Northwestern Hawaiian Islands

Description

EM300 and EM3002D multibeam Data were collected from 11-31 October 2005 aboard NOAA Ship Hi'ialakai at Maro Reef and a seamount east of Nihoa Island in the Northwestern Hawaiian Islands during cruise HI-05-08. These multibeam data were collected using SAIC ISS-2000 software in the Generic Sensor Format and processed using SABER editing software. Surface sound velocity values were supplied by a Seabird SBE-45 MicroTSG and a SBE-38 remote temperature probe. Sound velocity corrections from a Seabird 911 CTD sensor and motion corrections from a POS-MV vertical reference were applied to the data in real time. Predicted tides were applied to the data in real time. Horizontal accuracy is 20 m (no differential GPS correctors applied), vertical accuracy is depth dependent (~1% of water depth), WGS84 datum. These data are not to be used for navigation. Depths mapped range from ~30-3000m. Concurrent mapping at Maro Reef was done by the R/V AHI in water depths ranging from 30-100m with the data set being AHI-05-08; metadata for AHI-05-08 are submitted separately.

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Tags

  • united states of america
  • bathymetry
  • oceans
  • hawaii
  • nihoa (23n161w0001)
  • nihoa island
  • earth science
  • maro reef (25n170w0001)
  • 1217
  • bathymetry/seafloor topography
  • nwhi
  • benthic habitat mapping and characterization - northwestern and main hawaiian islands
  • multibeam sonar
  • honolulu
  • central pacific ocean
  • maro reef
  • islands
  • ocean basin
  • northwestern hawaiian islands
  • coris_metadata
  • pacific ocean
  • geographic information
  • country/territory

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