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*ACOUSTIC PROPERTIES
1
*ACOUSTIC SOUNDING
1
*PULSE ECHO TECHNIQUE
1
*SEA ICE
1
ACOUSTIC ATTENUATION
1
ACOUSTIC REFLECTION
1
ACOUSTIC VELOCITY
1
Acoustic Detection and Detectors
1
Acoustics
1
COMPUTER PROGRAMS
1
INTERFACES
1
Ice and Permafrost
1
LOW FREQUENCY
1
MEASUREMENT
1
REFLECTIVITY
1
SEA WATER
1
SONAR ECHOES
1
SONAR PULSES
1
SOUND TRANSMISSION
1
SOUNDING
1
Snow
1
THICKNESS
1
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