gov.noaa.ngdc.mgg.multibeam:A198HW_kaho US Geological Survey (USGS) 20080402 http://www.ngdc.noaa.gov/nndc/struts/results?op_0=l&v_0=NEW697&op_1=l&v_1=&t=101378&s=2&d=6&no_data=suppress http://map.ngdc.noaa.gov/website/mgg/multibeam/ http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html http://map.ngdc.noaa.gov/website/mgg/multibeam/ http Multibeam Bathymetric Data Viewer Multibeam bathymetry available from the National Geophysical Data Center. search http://www.ngdc.noaa.gov/nndc/struts/results?op_0=l&v_0=NEW697&op_1=l&v_1=&t=101378&s=2&d=6&no_data=suppress http Multibeam Survey Specific multibeam survey information available from the National Geophysical Data Center. information http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html http Multibeam Bathymetric Data Homepage NGDC is the US national archive for multibeam bathymetric data and presently holds over 1.6 million nautical miles of ship tracklines (660 surveys) received from sources worldwide. information This data set is part of a larger set of data called the the MultiBeam Bathymetric Data Base (MBBDB) where other similar data can be found at http://map.ngdc.noaa.gov/website/mgg/multibeam/. The intent of these data is to make high-resolution bathymetry available to the public for a wide variety of uses such as research and earth science analysis. These data are not intended to be used for navigation. Nautical charts produced and certified by NOAA should be used for navigational purposes. For more information on NOAA"s nautical charts go to NOAA"s Office of Coast Survey website at: http://chartmaker.ncd.noaa.gov/. Virden, W. Habermann, T. Glover, G. Divins, D. Sharman, G. Fox, C. 2004 Bridges Across the Ocean OCEANS'04 MTS/IEEE, TECHNO-OCEAN'04 November 9-12, 2004 (conference) http://www.techno-ocean.com/e/top.html Gardner, J.V. Hughs-Clarke, J.E. 1998 USGS Open File Report OF-98-212 OF-98-212 http://geopubs.wr.usgs.gov/open-file/of98-212 Torresan, M.E. Gardner, J.V. 2000 USGS Open File Report OF-00-124 http://geopubs.wr.usgs.gov/open-file/of00-124 http://geopubs.wr.usgs.gov/open-file/of00-124 http Acoustic Mapping of the Regional Seafloor Geology in and Around Hawaiian Ocean Dredged-Material Disposal Sites USGS Open File Report information 19980130 19980223 Ground Condition Complete None Planned -156.863 -156.4656 20.8023 20.5289 NASA> GCMD Earth Science Keywords EARTH SCIENCE Oceans > Bathymetry/Seafloor Topography > Seafloor Topography ISO 19115 Topic Category Oceans Elevation GeoscientificInformation NASA/GCMD Data Center Keywords WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Limits of the Oceans and Seas North Pacific North Pacific A198HW_kaho Ocean Alert Simrad EM300 none Data shall not be used for navigation. NOAA/NESDIS/NGDC > National Geophysical Data Center MB Data Manager Mailing and Physical Address

NOAA/NESDIS/NGDC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 mb.info@noaa.gov 7:30 - 5:00 Mountain Contact Data Center James V. Gardner and John Hughes-Clarke, Chief Scientist U.S. Geological Survey and Ocean Mapping Group, University of New Brunswick 152 files in directory NEW697 MB-System Data Format Complete Received 20080402 NOAA/NESDIS/NGDC > National Geophysical Data Center MB Data Manager Mailing and Physical Address

NOAA/NESDIS/NGDC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 mb.info@noaa.gov 7:30 - 5:00 Mountain Contact Data Center Assimilated 20080417 NOAA/NESDIS/NGDC > National Geophysical Data Center MB Data Manager Mailing and Physical Address

NOAA/NESDIS/NGDC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 mb.info@noaa.gov 7:30 - 5:00 Mountain Contact Data Center Point Area point 376292 Multibeam Bathymetry The determination of ocean depths or the general configuration of the sea floor as determined by the profile analysis of depth data, using a multibeam, wide-swath echo sounder. Depths are measured directly below and transverse to the ship's track. The width of the swath is a function of the number of beams and their aperture. International Hydrographic Organization P-32; Hydrographic Dictionary, 5th Ed. Total Number of Beams The total number of beams used in the survey, as recorded in the data files and reported by MB-System unknown 43332411 43332411 Count 19980130 19980223 Number of Good Beams The number of beams used in the survey, as recorded in the data files and reported by MB-System, where the corresponding soundings yield reasonable and dependable values unknown 42910446 42910446 Count 19980130 19980223 Number of Zero Beams The number of beams used in the survey, as recorded in the data files and reported by MB-System, where the corresponding soundings yield zero values unknown 421965 421965 Count 19980130 19980223 Number of Flagged Beams The number of beams used in the survey, as recorded in the data files and reported by MB-System, where the corresponding soundings yield values that are flagged for possible errors unknown 0 0 Count 19980130 19980223 Longitude The positional longitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown -156.863 -156.4656 Decimal Degrees 19980130 19980223 Latitude The positional latitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown 20.5289 20.8023 Decimal Degrees 19980130 19980223 Sonar Depth The depth of the sonar sounding as recorded in the data file and reported by MB-System. unknown -6553.6001 7.07 Meters 19980130 19980223 Altitude Minimum and maximum altitude of the SeaBeam 2100 instrument above the seafloor MB-System software 0 446 Meters 1 19980130 19980223 Depth Minimum and maximum water depths of the seafloor measured by the SeaBeam 2100 instrument MB-System software 38.38 480.76 Meters 1 19980130 19980223 Survey time Total elapsed time of data collecion as recorded in the data files and reported by MB-System. Unknown 87.5454 87.5454 Hours 19980130 19980223 Track Length Total distance traveled during data collecion as recorded in the data files and reported by MB-System. Unknown 1622.3924 1622.3924 kilometers 19980130 19980223 Multibeam Amplitude The determination of ocean depths or the general configuration of the seafloor as determined by the profile analysis of depth data International Hydrographic Organization P-32; Hydrographic Dictionary, 5th Ed. Total Number of Beams The total number of beams used in the survey, as recorded in the data files and reported by MB-System unknown 43332411 43332411 Count 19980130 19980223 Number of Good Beams The number of beams used in the survey, as recorded in the data files and reported by MB-System, where the corresponding soundings yield reasonable and dependable values unknown 42910446 42910446 Count 19980130 19980223 Number of Zero Beams The number of beams used in the survey, as recorded in the data files and reported by MB-System, where the corresponding soundings yield zero values unknown 421965 421965 Count 19980130 19980223 Number of Flagged Beams The number of beams used in the survey, as recorded in the data files and reported by MB-System, where the corresponding soundings yield values that are flagged for possible errors unknown 0 0 Count 19980130 19980223 Longitude The positional longitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown -156.863 -156.4656 Decimal Degrees 19980130 19980223 Latitude The positional latitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown 20.5289 20.8023 Decimal Degrees 19980130 19980223 Sonar Depth The depth of the sonar sounding as recorded in the data file and reported by MB-System. unknown -6553.6001 7.07 Meters 19980130 19980223 Altitude Minimum and maximum altitude of the SeaBeam 2100 instrument above the seafloor MB-System software 0 446 Meters 1 19980130 19980223 Depth Minimum and maximum water depths of the seafloor measured by the SeaBeam 2100 instrument MB-System software 38.38 480.76 Meters 1 19980130 19980223 Survey time Total elapsed time of data collecion as recorded in the data files and reported by MB-System. Unknown 87.5454 87.5454 Hours 19980130 19980223 Track Length Total distance traveled during data collecion as recorded in the data files and reported by MB-System. Unknown 1622.3924 1622.3924 kilometers 19980130 19980223 Multibeam Sidescan A form of active sonar in which fixed acoustic beams are directed into the water perpendicularly to the direction of travel to scan the bottom and generate a record of the bottom configuration. International Hydrographic Organization P-32; Hydrographic Dictionary, 5th Ed. Total Number of Pixels The total number of pixels used in the survey, as recorded in the data files and reported by MB-System unknown 385225728 385225728 Count 19980130 19980223 Number of Good Pixels The total number of good pixels used in the survey, as recorded in the data files and reported by MB-System unknown 301441610 301441610 Count 19980130 19980223 Total Number of Zero Pixels The total number of zero pixels used in the survey, as recorded in the data files and reported by MB-System unknown 83784118 83784118 Count 19980130 19980223 Total Number of Flagged Pixels The total number of flagged pixels used in the survey, as recorded in the data files and reported by MB-System unknown 0 0 Count 19980130 19980223 Longitude The positional longitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown -156.863 -156.4656 Decimal Degrees 19980130 19980223 Latitude The positional latitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown 20.5289 20.8023 Decimal Degrees 19980130 19980223 Sonar Depth The depth of the sonar sounding as recorded in the data file and reported by MB-System. unknown -6553.6001 7.07 Meters 19980130 19980223 Altitude Minimum and maximum altitude of the SeaBeam 2100 instrument above the seafloor MB-System software 0 446 Meters 1 19980130 19980223 Depth Minimum and maximum water depths of the seafloor measured by the SeaBeam 2100 instrument MB-System software 38.38 480.76 Meters 1 19980130 19980223 Survey time Total elapsed time of data collecion as recorded in the data files and reported by MB-System. Unknown 87.5454 87.5454 Hours 19980130 19980223 Track Length Total distance traveled during data collecion as recorded in the data files and reported by MB-System. Unknown 1622.3924 1622.3924 kilometers 19980130 19980223 NOAA/NESDIS/NGDC > National Geophysical Data Center MB Data Manager Mailing and Physical Address

NOAA/NESDIS/NGDC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 mb.info@noaa.gov 7:30 - 5:00 Mountain Contact Data Center NGDC_ID = NEW697 While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. MBF_EM300RAW (56) Simrad current multibeam vendor format http://map.ngdc.noaa.gov/website/mgg/multibeam/ http://www.ngdc.noaa.gov/nndc/struts/results?op_0=l&v_0=NEW697&op_1=l&v_1=&t=101378&s=2&d=6&no_data=suppress http://map.ngdc.noaa.gov/website/mgg/multibeam/ http Multibeam Bathymetric Data Viewer Multibeam bathymetry available from the National Geophysical Data Center. search http://www.ngdc.noaa.gov/nndc/struts/results?op_0=l&v_0=NEW697&op_1=l&v_1=&t=101378&s=2&d=6&no_data=suppress http Multibeam Survey Specific multibeam survey information available from the National Geophysical Data Center. information None 20080417 NOAA/NESDIS/NGDC > National Geophysical Data Center MB Data Manager Mailing and Physical Address

NOAA/NESDIS/NGDC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 mb.info@noaa.gov 7:30 - 5:00 Mountain Contact Data Center Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 Navigation Horizontal Control None Simrad current multibeam vendor format bathymetry None Simrad EM120, EM300, EM1002, EM3000, bathymetry, amplitude, and sidescan, up to 254 beams, variable pixels, ascii + binary, Simrad Simrad current multibeam vendor format sidescan None Simrad EM120, EM300, EM1002, EM3000, bathymetry, amplitude, and sidescan, up to 254 beams, variable pixels, ascii + binary, Simrad Simrad current multibeam vendor format amplitude None Simrad EM120, EM300, EM1002, EM3000, bathymetry, amplitude, and sidescan, up to 254 beams, variable pixels, ascii + binary, Simrad