Accession Number : AD0710849

Title :   THE TRANSITION FROM MOVING TO FAST ICE IN WESTERN VISCOUNT MELVILLE SOUND,

Corporate Author : DEFENCE RESEARCH ESTABLISHMENT PACIFIC VICTORIA (BRITISH COLUMBIA)

Personal Author(s) : Milne,A. R.

Report Date : 1970

Pagination or Media Count : 3

Abstract : An unexpected result of the recording of underwater noise under sea-ice is the ability to detect the difference in character of the noise generated by ice in motion in relation to the noise generated under shore-fast ice. The detection of motion was easily made by observing the hourly samples of underwater noise recorded by a remote instrument package (RIP). One RIP was installed in the sea bottom south of Melville Island in August 1967 and was recovered one year later. A sample strip-chart record of the change of underwater noise-power with time in the 150-300 Hz frequency band is shown. (Author)

Descriptors :   (*SEA ICE, MOTION), DETECTION, UNDERWATER EQUIPMENT, DETECTORS, SAMPLING, HYDROPHONES, NOISE, CANADA

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE