Title :
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
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;
Conference_Titel :
OCEANS '93. Engineering in Harmony with Ocean. Proceedings
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-1385-2
DOI :
10.1109/OCEANS.1993.326022
