Influence of Relative Changes in Magnesium and Sulfate Content upon the Sound Velocity of Sea Water

1965 ◽  
Vol 38 (2) ◽  
pp. 313-325 ◽  
Author(s):  
Norman W. Lord ◽  
Morris A. Ransone ◽  
Mary E. Brey
Keyword(s):  
Sound Velocity ◽  
Sea Water ◽  
Sulfate Content

Estimating quality of indirect measurements of sea water sound velocity by CTD data

Measurement ◽  
2021 ◽  
Vol 175 ◽  
pp. 109073
Author(s):  
Aleksandr N. Grekov ◽  
Nikolay A. Grekov ◽  
E.N. Sychov
Keyword(s):  
Sound Velocity ◽  
Sea Water ◽  
Indirect Measurements

scholarly journals The new equation for calculation the density of sea water from measurements of the speed of sound

2017 ◽  
pp. 12-18
Author(s):  
A. N. Grekov ◽  
◽  
N.A. Grekov ◽  
E.N. Sychov ◽  
◽  
...  
Keyword(s):  
Equation Of State ◽  
Sound Velocity ◽  
Speed Of Sound ◽  
Sea Water ◽  
High Accuracy ◽  
Wide Range ◽  
New Equation

In this work the new kind of the equation of state expressing the density of sea water through independent and in situ measurable parameters: temperature, pressure and sound velocity, is justified theoretically and implemented in practice. The novelty of the approach is that the use of sound velocity as one of the arguments makes it possible measuring of the density of sea water without measurements of salinity. The developed equation reproduces the density of sea water with a high accuracy in a wide range of parameters.

A RESONANT CHAMBER METHOD FOR SOUND VELOCITY AND ATTENUATION MEASUREMENTS IN SEDIMENTS

Geophysics ◽  
1956 ◽  
Vol 21 (2) ◽  
pp. 305-319 ◽  
Author(s):  
George Shumway
Keyword(s):  
Shallow Water ◽  
Sound Velocity ◽  
Deep Sea ◽  
Atmospheric Pressure ◽  
San Diego ◽  
Sea Water ◽  
Resonance Method ◽  
Water Velocity ◽  
Red Clay ◽  
Shallow Water Sediments

Sound velocity and attenuation measurements in unconsolidated marine sediments have been made by a resonance method which utilizes a thin‐walled plastic cylinder as a pressure‐release container to hold samples. Velocities were determined from resonant frequencies which lay between 23 and 36 kc/sec for the 2 inch diameter by 4 inch long cylindrical container used. Attenuation was determined from the sharpness of the resonant modes. Relatively undisturbed sediment samples were obtained by diver, in shallow water, using the same plastic containers in which the acoustic measurements are made. Deep sea samples were obtained by cutting sections from cores which were taken in plastic tubes. Velocities for shallow water sediments in the San Diego area ranged from 4,840 ft/sec (0.978 times sea water velocity) for fine silt to 5,680 ft/sec (1.147 times sea water velocity) for medium sand, measured at 60°F. and atmospheric pressure. Velocities in deep‐sea red clay samples ranged between 0.980 and 1.040 times the sea water velocity, at 60°F. and atmospheric pressure. Attenuation coefficients for shallow‐water San Diego sediments varied from about 1 to 4 db/ft for silts, to about 3 to 8 db/ft for sand.

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