> gov.noaa.ngdc.mgg.multibeam:EW9808 LDEO 20070622 0 http://www.marine-geo.org/services/data/set/EW9808-Multibeam-0.xml http://www.marine-geo.org/services/data/set/EW9808-Multibeam-0.xml http Multibeam Data Set Specific multibeam survey information available from Lamont-Doherty Earth Observatory. information http://www.marine-geo.org/services/getDataSet/?collection=EW9808&device=Sonar:Multibeam&quality=0&format=TAR http Multibeam Data Set Download link for multibeam survey data. access EW9808: Multibeam Data Set 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. 19981005 19981009 Ground Condition Complete None Planned -76.3409 -58.763 44.6664 36.853 ISO 19115 Topic Category Oceans Elevation GeoscientificInformation NASA/GCMD Earth Science Keywords Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography Uncontrolled - Departure Halifax, Nova Scotia Uncontrolled - Arrival Norfolk, Virginia EW9808 Maurice Ewing Atlas Hydrosweep DS none Data shall not be used for navigation. LDEO > Lamont-Doherty Earth Observatory MGDS Data Manager Mailing and Physical Address

61 Route 9W

Palisades NY 10964 USA 845-818-3745 845-818-3745 info@marine-geo.org 24 hours Contact Data Center Heallen, Robert : WesternGeco Marine Geoscience Data System Unclassified none 4 files (160948885 bytes) in directory field/Ewing/EW9808/swath MB-System Data Format Complete Primary Navigation = GPS Vertical accuracy is within the IHO standards of 1% of the depth. Lamont-Doherty Earth Observatory 20070622 Version 5 Monterey Bay Aquarium Research Institute and Lamont-Doherty Earth Observatory Columbia University http://www.ldeo.columbia.edu/MB-System/ http://www.ldeo.columbia.edu/MB-System/ http MB-System Information on MB-System, an open source software package for the processing and display of bathymetry and backscatter imagery data used by NGDC. information Online 1990 Present Publication Date MB System 2006 Calculate information for this bathymetry data. Calculated information for the bathymetry data using MB-System. MB INFO 20070622 LDEO > Lamont-Doherty Earth Observatory MGDS Data Manager Mailing and Physical Address

61 Route 9W

Palisades NY 10964 USA 845-818-3745 845-818-3745 info@marine-geo.org 24 hours Contact Data Center Point Area point 105581 Bathymetry Survey. 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 6229279 6229279 Count 19981005 19981009 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 5927745 5927745 Count 19981005 19981009 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 301534 301534 Count 19981005 19981009 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 19981005 19981009 Longitude The positional longitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown -76.3409 -58.763 Decimal Degrees 19981005 19981009 Latitude The positional latitude of the corresponding sounding as recorded in the data file and reported by MB-System. unknown 36.853 44.6664 Decimal Degrees 19981005 19981009 Sonar Depth The depth of the sonar sounding as recorded in the data file and reported by MB-System. unknown 0 0 Meters 19981005 19981009 Altitude Minimum and maximum altitude of the Atlas Hydrosweep DS instrument above the seafloor MB-System software 0 0 Meters 1 19981005 19981009 Depth Minimum and maximum water depths of the seafloor measured by the SeaBeam 2100 instrument MB-System software 11.9 2713 Meters 1 19981005 19981009 Survey time Total elapsed time of data collection as recorded in the data files and reported by MB-System. Unknown 93.8858 93.8858 Hours 19981005 19981009 Track Length Total distance traveled during data collection as recorded in the data files and reported by MB-System. Unknown 1822.53 1822.53 kilometers 19981005 19981009 LDEO > Lamont-Doherty Earth Observatory MGDS Data Manager Mailing and Physical Address

61 Route 9W

Palisades NY 10964 USA 845-818-3745 845-818-3745 info@marine-geo.org 24 hours Contact Data Center LDEO_ID = EW9808 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, LDEO 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. LDEO makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. MBF_HSATLRAW (21) Raw Hydrosweep http://www.marine-geo.org/services/data/set/EW9808-Multibeam-0.xml http://www.marine-geo.org/services/data/set/EW9808-Multibeam-0.xml http Multibeam Data Set Specific multibeam survey information available from Lamont-Doherty Earth Observatory. information None DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce William T. Virden Mailing and Physical Address

NOAA/NESDIS/NGDC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-7278 (303) 497-6958 (303) 497-6513 William.T.Virden@noaa.gov 7:30 - 5:00 Mountain Contact Data Center LDEO_ID = EW9808 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, LDEO 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. LDEO makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. MBF_HSATLRAW (21) Raw Hydrosweep http://map.ngdc.noaa.gov/website/mgg/multibeam/ http://www.ngdc.noaa.gov/nndc/struts/results?op_0=l&v_0=&op_1=l&v_1=&op_2=l&v_2=EW9808&t=101378&s=2&d=6 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=&op_1=l&v_1=&op_2=l&v_2=EW9808&t=101378&s=2&d=6 http Multibeam Survey Specific multibeam survey information available from the National Geophysical Data Center. information None 20070622 LDEO > Lamont-Doherty Earth Observatory MGDS Data Manager Mailing and Physical Address

61 Route 9W

Palisades NY 10964 USA 845-818-3745 845-818-3745 info@marine-geo.org 24 hours Contact Data Center Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 http://LocalID.ngdc.noaa.gov EW9808