Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) 20070824 Generic Sensor Format (GSF) digital data http://www.soest.hawaii.edu/pibhmc/ Reson 8101ER multibeam Data were collected between 19 April - 9 May 2007 aboard NOAA Survey Launch Acoustic Habitat Investigator (AHI) at Wake Atoll, Western Pacific during cruise AHI0701. 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 using predicted tides downloaded from NOAA's National Ocean Service Center for Operational Oceanographic Products and Services (CO-OPS) website. Horizontal accuracy is ~5m, DGPS from NavCom sensor from C&C Technologies was used, vertical accuracy is depth dependent (~1% of water depth), WGS84 datum. These data are not to be used for navigation. Depths mapped range from 5 - 350 m. The AHI was deployed from the NOAA Ship Hi'ialakai and concurrent mapping was done using the Simrad EM300 sonar aboard the ship; metadata for HI0701 are submitted separately. The data were collected in support of Coral Reef Conservation Program goals to map all shallow (0-30 m)coral reefs in US Pacific waters and priority moderate (> 30 m)depth areas by 2009. The data are being used to provide bathymetric and backscatter data for previously unmapped areas; in support of ecosystem management requirements for benthic habitat mapping and location of Essential Fish Habitat; and to study the geologic features of the area. Data were collected aboard the R/V AHI (Acoustic Habitat Investigator), a 8 m (25') survey launch owned and operated by the NOAA Pacific Islands Fisheries Science Center in Honolulu, HI. The R/V AHI's survey sensors include 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. A C&C Technologies NavCom sensor and the C-NAV RTG network, which is a global system for the distribution of differential GPS corrections, was used for navigation. The AHI's equipment serial numbers, software versions and sensor configuration settings are as follows: RESON 8101-ER multibeam echosounder Transducer serial #: 201004 Firmware, dry: 8101-2.07-2D4D Firmware, wet: 8101-1.06-2F6B R/V AHI POS/MV Model 320, version 4.0000 PCS serial #: 2514 IMU serial #: 203 Controller software: v 3.4.0.0 PCS Firmware: 3.41 Seabird SBE19 CTD: Serial #: 3029 Calibrated 12/28/2006 C&C Technologies NavCom Serial #5111 R/V AHI Lever Arm Distances and Alignment Offsets: The R/V AHI Reference Point (RP) is defined to be the intersection of the vessel's centerline, the cabin deck and the bulkhead immediately aft of the transducer. This is marked by a punch in the deck weld at that location. 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. The loaded waterline is defined as the intersection of the vessel's performance wing with the hull at the transom. A vessel offset survey and patch test were performed in March 2007 and the settings shown here reflect these data. POS/MV Settings: RP to IMU, m 0.796 0.001 0.078 RP to Primary GPS(port),m 0.869 -0.472 -2.284 RP to Vessel, m 0.144 0.009 0.786 IMU w.r.t. Ref. Frame, deg 0.000 0.000 0.000 RP to Heave lever arm, m -0.670 0.000 0.000 RP to Sensor 1(MB transducer), m 0.144 0.009 0.786 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: 1.229 ISS2000 Settings for RESON DTC: Roll Bias, deg 0.15 Pitch Bias, deg 0.0 Gyro Bias, deg 0.0 Transducer depth, m 0.62 Resource Description: Reson 8101ER Multibeam Sonar Data from Cruise AHI0701 (R/V AHI) 20070420 20070509 ground condition In Work As needed 166.6659 168.5900 19.3295 19.2634 CoRIS Discovery Thesaurus Geographic Information > Bathymetry ISO 19115 Topic Category elevation 006 CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry None Bathymetry Multibeam sonar None Wake Atoll Wake Island Wilkes Island Peale Island CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Wake Atoll (19N167E0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Wake Atoll > Wake Atoll (19N167E0001) CoRIS Region PRIA None. These data are NOT TO BE USED FOR NAVIGATION Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) mailing and physical address

1125B Ala Moana Blvd.

Honolulu HI 96814 (808) 983-3776 (808) 983-2902 pibhmc@soest.hawaii.edu e-mail preferred NOAA PIFSC CRED PIBHMC and JIMAR Not applicable Unclassified Not applicable Generic Sensor Format multibeam data processed with SAIC SABER processing software on LINUX operating system computers Horizontal accuracy is ~5 m as data were collected using DGPS using C-NAV satellite correctors. 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 20 Multibeam sonar data. DGPS with 5 m accuracy Variable 1 Accuracy varies with water depth. Predicted tide correctors applied using data supplied by the NOAA CO-OPs program; multibeam data vertical accuracy is ~1% of water depth. NOAA PIFSC CRED PIBHMC and JIMAR 20070824 Digital data 2007 ground condition Reson 8101ER Reson 8101ER (240 kHz) bathymetry and imagery data were collected in depths of ~10-350 m. None Unknown Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) mailing and physical address

1125B Ala Moana Blvd.

Honolulu HI 96814 (808) 983-3776 (808) 983-2902 pibhmc@soest.hawaii.edu e-mail preferred Downloadable Data 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 These data are also archived through NOAA's National Geophysical Data Center at http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html Data Format - Generic Sensor Format, as described in http://www.ldeo.columbia.edu/res/pi/MB-System/formatdoc/gsf_spec.pdf 20121220 20110318 Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA) mailing and physical address

1125B Ala Moana Blvd.

Honolulu HI 96814 (808) 983-3776 (808) 983-2902 pibhmc@soest.hawaii.edu e-mail preferred FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 Universal Time 20090526040524 None 20070420 20070509 http://www.coris.noaa.gov/metadata/records/html/cred_ahi0701_mb_metadata.html 2731