Applications of Parametric Sonar to Under-Ice Operations. Volume II.

• Main Authors: Bell,D. L., Britton,L. C., Porter,W. J.
• Other Authors: RAYTHEON CO PORTSMOUTH R I SUBMARINE SIGNAL DIV
• Format: Text
• Language: English
• Published: 1975
• Subjects: Snow; Ice and Permafrost; Acoustic Detection and Detectors; *SONAR; *UNDERICE; PROFILES; OPERATION; BOTTOM; SEA ICE; PARAMETRIC DEVICES; Ice; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/ADA010552; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA010552

The report describes an investigation concerning parametric sonar applications to under-ice operations. Two basic tasks are undertaken. These are first, a data gathering program in an environment which partially simualtes the under-ice environment; and second, a theoretical investigation which extrapolates the results obtained to the under-ice environment. To gather data in a representative environment, a parametric sonar operating in a sub-bottom profiling mode was used in a downward looking mode analogous to upward scanning of the water to sea-ice interface. Results were analyzed and compared to possible under-ice operations in the theoretical investigations.