Reson 8101ER multibeam Data were collected in February 11 - March 14, 2010 aboard NOAA Ship Oscar Elton Sette in the Commonwealth of the Northern Mariana Islands and Guam on cruise SE1002. These multibeam data were collected using SAIC ISS-2000 v 4.0.0.3.0 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 during post-processing. 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 - 200 m.
The data were collected for use as a planning and reference document. The data are also being used for benthic habitat mapping, for locating Essential Fish Habitat, and for studying geologic features of the area. Refer to supplemental information for description of instrument and survey.
Data were collected aboard the NOAA vessel Oscar Elton Sette, a 68 m (224') United States National Oceanographic and Atmospheric Agency (NOAA) research ship. The Oscar Elton Sette deployed an over the side pole mounted survey sensors system including a 240 kHz RESON 8101-ER sonar which measures bathymetry and acoustic backscatter imagery, a TSS/Applanix POS/MV Model 320 which measures time, position, velocity, attitude and heading, and a Seabird SBE 19 CTD used to measure sound velocity profiles. The equipment serial numbers, software versions and sensor configuration settings are as follows: RESON 8101-ER multibeam echosounder Transducer serial #: 201004 Firmware, dry: 8101-2.09-2E34D Firmware, wet: 8101-1.08-C215 POS/MV Model 320, version 4.0000 (w/ TrueHeave but no RTK) PCS serial #: 2514 IMU serial #: 203 Controller software: v 3.4.0.0 PCS Firmware: 3.41 Seabird SBE19 CTD: Serial #: 3029 Last Callibration: 08/2009 Lever Arm Distances and Alignment Offsets: THe Reference Point (RP) is defined to be the center of pivot on the pole mounted transducer system directly in line with the transducer. RP is located between the 20'and 28' 10" deck on the Oscaer Elten Sette. Positive X means the point is forward of the RP, positive Y means the point is to starboard of the RP, positive Z means the point is below the RP. POS/MV Settings (x,y,z): RP to IMU, m 9.06 -7.52 -2.85 RP to Primary GPS,m 2.18 -5.29 -8.52 RP to Vessel, m 0.00 0.00 0.00 IMU w.r.t. Ref. Frame, deg 0.00 0.00 0.00 RP to Heave lever arm, m 19.92 -7.49 -1.90 RP to Sensor 1(MB transducer), m -0.13 0.05 7.32 RP to Sensor 2 0 0 0 Sensor 1 rotation Ref. Frame, deg 0 0 0 Sensor 2 rotation Ref. Frame, deg 0 0 0 Antenna Baseline Distance: 3.848 ISS2000 Settings for RESON DTC: Roll Bias, deg -0.34 Pitch Bias, deg 0.13 Gyro Bias, deg Transducer depth, m 5.0419 Resource Description: Reson 8101ER Multibeam Sonar Data from Cruise SE-10-02 ( R/V Oscar Elton Sette)
ground condition
These data are NOT TO BE USED FOR NAVIGATION
NOAA IRC
NMFS/PIFSC/CRED
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John Rooney, Coral Reef Ecosystem Division, NOAA Pacific Islands Fisheries Science Center
Horizontal accuracy is ~5 m as data were collected using DGPS. Vertical accuracy of multibeam data is estimated at 1% of water depth; predicted tidal corrections were applied.
These data are believed to be logically consistent though no tests were performed
Varies
Variable
Multibeam sonar data. DGPS corrections applied; 5 m accuracy
Accuracy varies with water depth. Predicted tide correctors applied in real time and and observed tides were applied in post- processing. Multibeam data vertical accuracy is ~1% of water depth.
Reson 8101ER (240 kHz) bathymetry and imagery data were collected in depths of ~10-200 m.
None
These data are not to be used for navigational purposes. NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
Please contact the Distributor (see above) for distribution options Data Format - Generic Sensor Format, as described in http://www.ldeo.columbia.edu/res/pi/MB-System/formatdoc/gsf_spec.pdf
