Metadata: Identification_Information: Citation: Citation_Information: Originator: Center for Coastal & Ocean Mapping, University of New Hampshire Publication_Date: 2003 Title: Multibeam Mapping of North Flank of Bowers Ridge, Bering Sea Description: Abstract: XYZ ASCII format data generated from the 2003 multibeam sonar survey, field activity D03-1, of the North Flank of Bowers Ridge, Bering Sea. The data include high-resolution bathymetry and acoustic backscatter. Purpose: These data are intended for UNCLOS concerns, science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to display bathymetry and backscatter data of the North Flank of Bowers Ridge, Bering Sea. Supplemental_Information: Information about UNH Center for Coastal and Ocean Mapping field activity D03-1 are online at http://www.jhc.unh.edu/unclos/html/reports.htm Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20030707 Ending_Date: 20030728 Status: Progress: Complete Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 175.830521 East_Bounding_Coordinate: 179.819519 North_Bounding_Coordinate: 55.588905 South_Bounding_Coordinate: 54.593906 Bouding_Coordinate_Units: Decimal Degree Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Marine Geology Theme_Keyword: Multibeam Theme_Keyword: Water Depth Theme_Keyword: Bathymetry Theme_Keyword: Ocean Floor Topography Theme_Keyword: ASCII xyz Theme_Keyword: Continental Margin Place: Place_Keyword_Thesaurus: None Place_Keyword: Bering Sea Place_Keyword: AK Place_Keyword: Alaska Place_Keyword: USA Place_Keyword: Bowers Ridge Access_Constraints: None Use_Constraints: Please recognize the University of New Hampshire, Center for Coastal & Ocean Mapping (UNH/CCOM) as the source of this information. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: for Coastal & Ocean Mapping, University of New Hampshire Contact_Person: James V. Gardner Contact_Position: Research Professor Contact_Address: Address_Type: mailing and physical address Address: Chase Ocean Engineering Lab, 24 Colovos Road City: Durham State_or_Province: NH Postal_Code: 03824 Country: USA Contact_Voice_Telephone: 603-862-3473 Contact_Facsimile_Telephone: 603-862-0839 Contact_Electronic_Mail_Address: jim.gardner@unh.edu Hours_of_Service: 9 AM - 5 PM EST Security_Information: Security_Classification: Unclassified Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Not Determined. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: 5 Meters Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: 1% of Water Depth Lineage: Process_Step: Process_Description: The bathymetry and backscatter data were collected and processed by Thales GeoSolutions, Inc. along a continuous swath perpendicular to the direction of the ship (RV Davidson) using a Reson Seabat8150 multibeam sonar system. The data are cleaned of bad navigation and depth readings. Backscatter readings were converted from voltages amplitude to DN (digital number)and arbitrarily stretched to tone match. The depth readings are gridded into a common grid. The gridded data are converted to an XYZ ASCII format file (Longitude, Latitude, Attribute). Process_Date: 20030815 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Bill Gilmour Contact_Organization: Thales GeoSolutions (Pacific), Inc Contact_Position: Program Manager Contact_Address: Address_Type: Mailing and Physical Address Address: 3837 Ruffin Road City: San Diego State_or_Province: CA Postal_Code: 92123 Country: USA Contact_Voice_Telephone: 858-292-8922 Contact_Facsimile_Telephone: 858-292-5308 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 100 Meters Longitude_Resolution: 100 Meters Geographic_Coordinate_Units: Meters Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.00 Meters Denominator_of_Flattening_Ratio: 0.003352811 Meters Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Instantaneous Sea Level Depth_Resolution: Better than 1% of Water Depth Depth_Distance_Units: Meters Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Center for Coastal & Ocean Mapping, University of New Hampshire Contact_Person: James V. Gardner Contact_Position: Research Professor Contact_Address: Mailing and Physical Address Address: Chase Ocean Engineering Lab, 24 Colovos Road City: Durham State_or_Province: NH Postal_Code: 03824 Country: USA Contact_Voice_Telephone: 603-862-3473 Contact_Facsimile_Telephone: 603-862-0839 Contact_Electronic_Mail_Address: jim.gardner@unh.edu Hours_of_Service: 9 AM - 5 PM EST Distribution_Liability: These data not intended for navigational purposes. These data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Neither the University of New Hampshire nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ASCII File_Decompression_Technique: Winzip Transfer_Size: 51.58 MB Metadata_Reference_Information: Metadata_Date: 20030815 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Center for Coastal & Ocean Mapping, University of New Hampshire Contact_Person: James V. Gardner Contact_Position: Research Professor Contact_Address: Mailing and Physical Address Address: Chase Ocean Engineering Lab, 24 Colovos Road City: Durham State_or_Province: NH Postal_Code: 03824 Country: USA Contact_Voice_Telephone: 603-862-3473 Contact_Facsimile_Telephone: 603-862-0839 Contact_Electronic_Mail_Address: jim.gardner@unh.edu Hours_of_Service: 9 AM - 5 PM EST Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: Universal Time Metadata_Security_Information: Metadata_Security_Classification: Unclassified