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) 200612 Generic Sensor Format (GSF) digital data http://www.soest.hawaii.edu/pibhmc/ EM1002 and EM120 multibeam Data were collected in October/November 2002 aboard R/V Kilo Moana between Kauai Island and Lisianski Island in the Northwestern Hawaiian Islands (NWHI). Multibeam data were collected using Simrad Neptune software, converted to the Generic Sensor Format, and processed using SABER editing software. Sound velocity corrections from CTD's and motion corrections from a POS-MV vertical reference were applied to the data in real time. No tidal correctors were applied in real-time or in post-processing. The EM1002 has heave artifacts (~0.6m) in shallow bank-top data. 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 30-5200 meters below sea level. The data were collected to provide information on the 25, 50, and 100 fm contours in the NWHI, which are important for establishing management boundaries for the NWHI Coral Reef Ecosystem Reserve. The data are being used to provide bathymetric and backscatter data for previously unmapped areas. The data support ecosystem management requirements for benthic habitat mapping and location of Essential Fish Habitat. The data are also used to study the geologic features of the area. Data were collected aboard the R/V Kilo Moana, a 57 m (186') oceanographic research vessel operated by the University of Hawaii, School of Ocean and Earth Science and Technology undera a charter agreement with the Office of Naval Research. The R/V Kilo Moana survey sensors include a 12 kHz Simrad EM120 sonar and a 95 kHz Simrad EM1002 sonar, used to acquire bathymetry and acoustic backscatter imager, a TSS/Applanix POS/MV Model 320, which measures time, position, velocity, attitude and heading, and expendable bathymetry thermographs (XBT) to acquire sound velocity profiles. For more information on R/V Kilo Moana's survey equipment see the University of Hawaii Marine Center's website: www.soest.hawaii.edu/UMC. For more information on R/V Kilo Moana cruise KM-02-06 see the cruise report: ftp.soest.hawaii.edu/pibhmc/website/cruisecatalog/KM0206_cruise_report_draft.pdf. Resource Description: EM1002 and EM120 Multibeam Sonar Data from KM-02-06 20021022 20021116 ground condition In Work As needed -174.70 -158.00 26.66 21.00 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 Northwestern Hawaiian Islands Islands CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands (28N178W0000) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Northwestern Hawaiian Islands (28N178W0000) CoRIS Region NWHI 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 Joyce E. Miller, NOAA PIFSC Coral Reef Ecosystem Division and Dr. Bruce Appelgate and Paul Johnson, Hawaii Mapping Research Group, University of Hawaii Not applicable Unclassified Not applicable Generic Sensor Format multibeam data procesed with SAIC SABER processing software on LINUX operating system computers. Horizontal accuracy is ~20 m as data were collected using GPS with no differential corrections. Vertical accuracy of multibeam data is estimated at 1% of water depth; no tidal corrections were applied. These data are believed to be logically consisten though no tests were performed Varies Variable 20 Multibeam sonar data. No DGPS corrections applied; 20 m accuracy Variable 1 Accuracy varies with water depth. No tide correctors applied; multibeam data vertical accuracy is ~1% of water depth. Joyce E. Miller 200612 Digital data 2006 ground condition Simrad EM 120 Simrad EM 120 (12 kHz) bathymetry and imagery data were collected in depths of ~100m and greater. The EM 120 system was placed in stand-by mode in shallower water due to high noise levels. Joyce E. Miller 200612 Digital data 2006 ground condition Simrad EM1002 Simrad EM 1002 (95 kHz) bathymetry and imagery data were collected in depths of ~20-1000m. The EM 1002 system was placed in stand-by mode in water depths greater than ~500 m. EM1002 bathymetric data have ~0.6 m heave artifacts 0n shallow bank-tops. 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 20090526 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 20090526033530 None 20021022 20021116 http://www.coris.noaa.gov/metadata/records/html/cred_km0206_mb_metadata.html 2721