Analysis of an acoustic wave that is propagated through a body of water while the body of water is frozen.

摘要

Analysis of an acoustic wave that is propagated through a body of water while the body of water is frozen.This is a method that includes: (I) to detect the Au acoustic wave which is propagating through a body of water, as the body of water is frozen in a structure, which yields an acoustic wave detected; (II) to extract, from the acoustic wave detected.(a) a component of a frequency thereof, and (b) a magnitude of the frequency component; and (III) removing the water body of the structure when the magnitude exceeds a limit value.