Accession Number:

ADA090269

Title:

Intermediate Frequency Sound Absorption in Seawater: The Role of Magnesium Sulphate,

Descriptive Note:

Corporate Author:

MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)

Personal Author(s):

• Whelan,Daniel J.

Report Date:

1980-06-01

Pagination or Media Count:

21.0

Abstract:

The resonant absorption frequency, and the excess absorption parameter for 0.014 m MgSO4 in water a 4 C and 100 atmosphere pressure have been calculated and agree quite closely with those values defined by the Thorp equation for deep ocean sound channel absorption at intermediate frequencies.

Descriptors:

• *ACOUSTIC ABSORPTION
• *SEA WATER
• *INTERMEDIATE FREQUENCIES
• *MAGNESIUM SULFATES
• LOW TEMPERATURE
• LABORATORY TESTS
• FIELD TESTS
• HIGH PRESSURE
• RESONANT FREQUENCY
• MATHEMATICAL ANALYSIS
• SOUND TRANSMISSION
• ACOUSTIC ATTENUATION
• AUSTRALIA
• UNDERWATER SOUND
• CONCENTRATION(CHEMISTRY)
• RESONANCE ABSORPTION
• DEEP OCEANS

Subject Categories:

• Physical and Dynamic Oceanography
• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE