Scholte wave attenuation estimates from two diverse test sites

Author

Broadhead, Michael K. ; Ali, Hassan B. ; Bibee, L.D.

Author_Institution

Naval Res. Lab., Stennis Space Center, MS, USA

fYear

1993

fDate

18-21 Oct 1993

Abstract

Scholte wave arrivals at two diverse test sites were analyzed with the spectral ratio method to obtain estimates of the shear attenuation properties of deep sea bottom sediments. The quantities obtained are interpreted as depth averaged estimates of the quality factor Q. The Scholte waves were generated by bottom located explosive charges and recorded on ocean bottom seismometers. The source-to-receiver ranges were approximately 0.6 to 2.0 km, and the bandwidth of the Scholte waves used m the analyse was approximately 0.3 to 6.0 Hz. The results obtained are internally consistent and fall within the range of values previously published in the literature. The results from one site are compared to Q estimates reported by another investigator for an experiment site in the same area

Keywords

oceanographic regions; seafloor phenomena; sediments; seismic waves; underwater sound; North Pacific; Q; Scholte wave attenuation; arrivals; deep sea bottom sediment; marine sediment; ocean; quality factor; seafloor; seismic wave propagation; seismology; shear attenuation; spectral ratio method; underwater sound; Attenuation; Bandwidth; Explosives; Oceans; Probes; Q factor; Sea measurements; Sediments; Spectral analysis; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '93. Engineering in Harmony with Ocean. Proceedings

Conference_Location

Victoria, BC

Print_ISBN

0-7803-1385-2

Type

conf

DOI

10.1109/OCEANS.1993.326022

Filename

326022