The Relationship Between Those Physical Properties of Underwater Sediments that Affect Bottom Reflection

Over the last few years very many cores have been taken from various parts of the ocean bottom, ranging from harbours to abyssal plains. This study presents the relationship between those physical properties of the sediments that affect bottom reflection, by using the data from more than 400 cores t...

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Bibliographic Details
Main Author: Akal, Tuncay
Other Authors: SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)
Format: Text
Language:English
Published: 1970
Subjects:
Physical and Dynamic Oceanography
Acoustics
*SOUND TRANSMISSION
*SEDIMENTARY ROCK
VELOCITY
DENSITY
PREDICTIONS
INTERFACES
REFRACTION
PACIFIC OCEAN
REFLECTIVITY
NORWEGIAN SEA
BLACK SEA
COMPRESSIVE PROPERTIES
OCEAN BOTTOM
HARBORS
OCEAN BOTTOM TOPOGRAPHY
OCEAN BOTTOM SAMPLING
MEDITERRANEAN SEA
ATLANTIC OCEAN
ATTENUATION
STATISTICAL DATA
POROSITY
DEPOSITS
*SEDIMENTS
SUBMARINE PLAINS
MOST PROJECT-3
Norwegian Sea
Pacific
Online Access:http://www.dtic.mil/docs/citations/AD0876824
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0876824
Description
Summary:Over the last few years very many cores have been taken from various parts of the ocean bottom, ranging from harbours to abyssal plains. This study presents the relationship between those physical properties of the sediments that affect bottom reflection, by using the data from more than 400 cores taken from various physiographic regions of the Pacific and Atlantic Oceans and the Norwegian, Mediterranean and Black Seas. The compressional sound velocities and densities measured in the cores and the Rayleigh reflection coefficients computed from these values are discussed with respect to their dependence on porosity. It is found that density and reflection coefficients can be related to porosity by a simple linear equation, and sound velocity by a second-order polynomial equation.

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