EFFECT OF UNCONSOLIDATED SEDIMENT RIGIDITY ON LOW FREQUENCY ACOUSTIC PROPAGATION.

J. H. Beebe; C. W. Holland

doi:10.1007/978-1-4613-2201-6_21

EFFECT OF UNCONSOLIDATED SEDIMENT RIGIDITY ON LOW FREQUENCY ACOUSTIC PROPAGATION.

J. H. Beebe, C. W. Holland

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

Most unconsolidated ocean sediments have been reported to possess small, but finite, rigidity. In sandy sediments rigidity is due to sliding and rolling friction resulting from the interlocking grain structure; in silt clays rigidity is due to cohesion. For many marine environments acoustic propagation is not measurably affected by sediment rigidity. In some environments, however, the effect of sediment rigidity is the dominant mechanism in modal attenuation. Two coastal regions on the Scotian shelf will be contrasted by comparing the effects of sediment shear wave excitation on transmission loss at low frequency. The key environmental factor in unconsolidated sediment shear wave excitation is not the intrinsic sediment properties but the degree of elastic contrast found in the acoustic field.

Original language	English (US)
Title of host publication	Marine Science (Plenum)
Publisher	Plenum Press
Pages	207-215
Number of pages	9
ISBN (Print)	0306422662, 9780306422669
DOIs	https://doi.org/10.1007/978-1-4613-2201-6_21
State	Published - 1986

Publication series

Name	Marine Science (Plenum)
Volume	16
ISSN (Print)	0160-273X

All Science Journal Classification (ASJC) codes

General Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/978-1-4613-2201-6_21

Cite this

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title = "EFFECT OF UNCONSOLIDATED SEDIMENT RIGIDITY ON LOW FREQUENCY ACOUSTIC PROPAGATION.",

abstract = "Most unconsolidated ocean sediments have been reported to possess small, but finite, rigidity. In sandy sediments rigidity is due to sliding and rolling friction resulting from the interlocking grain structure; in silt clays rigidity is due to cohesion. For many marine environments acoustic propagation is not measurably affected by sediment rigidity. In some environments, however, the effect of sediment rigidity is the dominant mechanism in modal attenuation. Two coastal regions on the Scotian shelf will be contrasted by comparing the effects of sediment shear wave excitation on transmission loss at low frequency. The key environmental factor in unconsolidated sediment shear wave excitation is not the intrinsic sediment properties but the degree of elastic contrast found in the acoustic field.",

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year = "1986",

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N2 - Most unconsolidated ocean sediments have been reported to possess small, but finite, rigidity. In sandy sediments rigidity is due to sliding and rolling friction resulting from the interlocking grain structure; in silt clays rigidity is due to cohesion. For many marine environments acoustic propagation is not measurably affected by sediment rigidity. In some environments, however, the effect of sediment rigidity is the dominant mechanism in modal attenuation. Two coastal regions on the Scotian shelf will be contrasted by comparing the effects of sediment shear wave excitation on transmission loss at low frequency. The key environmental factor in unconsolidated sediment shear wave excitation is not the intrinsic sediment properties but the degree of elastic contrast found in the acoustic field.

AB - Most unconsolidated ocean sediments have been reported to possess small, but finite, rigidity. In sandy sediments rigidity is due to sliding and rolling friction resulting from the interlocking grain structure; in silt clays rigidity is due to cohesion. For many marine environments acoustic propagation is not measurably affected by sediment rigidity. In some environments, however, the effect of sediment rigidity is the dominant mechanism in modal attenuation. Two coastal regions on the Scotian shelf will be contrasted by comparing the effects of sediment shear wave excitation on transmission loss at low frequency. The key environmental factor in unconsolidated sediment shear wave excitation is not the intrinsic sediment properties but the degree of elastic contrast found in the acoustic field.

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SN - 9780306422669

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ER -

EFFECT OF UNCONSOLIDATED SEDIMENT RIGIDITY ON LOW FREQUENCY ACOUSTIC PROPAGATION.

Abstract

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All Science Journal Classification (ASJC) codes

UN SDGs

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