2005 Reson 8101ER Multibeam Sonar Data from Cruise AHI-05-04 - Main Hawaiian Islands

Reson 8101ER multibeam Data were collected from 13 June-08 July 2005 aboard NOAA Survey Launch Acoustic Habitat Investigator (AHI) at Niihau, Penguin Bank, and Molokai in the Main Hawaiian Islands during cruise AHI-05-04. These multibeam data were collected using SAIC ISS-2000 software in the Generic Sensor Format and processed using SABER editing software. Sound velocity corrections from a Seabird SBE19 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 and observed tides were applied in postprocessing. Horizontal accuracy is 5m (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 10 - 250 m. The AHI was deployed from the NOAA Ship Hi'ialakai and concurrent mapping was done using Simrad EM300 and EM3002D sonars aboard the ship; metadata for HI-05-04 are submitted separately.