SONAR MAPPING OF THE UNDERSIDE OF SEA ICE

A technique was developed for adapting the sidescan sonar to obtain sonar maps of the undersurface of sea ice. The equipment is portable and air-mobile operations were made from single-engine light aircraft. Graphic records displaying the range and relative scattering strengths at 48 kHz were assembled into sonar maps that display the location and shape of under ice features. Data were taken at five sites in the Arctic. The purpose of the research is to develop the underwater technology required to measure the location and shape of features on the bottom of sea ice and to compare the bottom with features on the surface; and to study the scattering of sound from the water-ice interface.

• Corporate Authors:

  University of Wisconsin, Middleton

  Geophysical and Polar Research Center
  Middleton, WI  United States 
• Authors:
  • Clay, C S
  • Berkson, J M
  • Kan, T K
• Publication Date: 1972-2

Media Info

• Pagination: 21 p.

Subject/Index Terms

• TRT Terms: Ice; Ice navigation; Mapping; Side looking radar; Sonar; Surveys
• Old TRIS Terms: Ice mapping; Ice surveys; Side looking sonar; Undersurface ice mapping
• Subject Areas: Data and Information Technology; Marine Transportation;

Filing Info

• Accession Number: 00044651
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: RR-73-1, Contrib-293Res Rpt
• Contract Numbers: N00014-67A-0128-0019, ARPA Order-1783
• Files: TRIS
• Created Date: Sep 18 1973 12:00AM