2006 EM300 and EM3002D Multibeam Sonar Data from Cruise Hi'ialakai HI-06-01 - Pacific Remote Island Areas
Description
EM300 and EM3002D multibeam Data were collected from 15 Jan - 6 Feb 2006 aboard NOAA Ship Hi'ialakai at Johnston Island, Howland Island, and Baker Island in the Central Pacific during cruise HI-06-01 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: for Johnston Island predicted tides from the NOS CO-OPS web site were used; for Baker and Howland Islands predicted tides based upon the Honolulu tide station (1612340) with a time corrector of 3 hrs 48 min and a range ratio of 3.91. Horizontal accuracy is 20m (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 ~20 - 4720 m. Concurrent mapping was done by the R/V AHI in water depths ranging from 3-250 m with the data set being AHI-06-01; metadata for AHI-06-01 are submitted separately.
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Tags
- united states of america
- johnston atoll (16n169w0001)
- baker island
- pacific remote island areas
- bathymetry
- oceans
- johnston island
- 1084
- baker island (00n176w0001)
- howland island
- earth science
- bathymetry/seafloor topography
- benthic habitat mapping and characterization - american samoa and pria
- pria
- multibeam sonar
- howland island (00s176w0001)
- central pacific ocean
- usa minor outlying islands
- islands
- ocean basin
- johnston atoll
- coris_metadata
- pacific ocean
- geographic information
- country/territory