Compressional Wave Speed Dispersion and Attenuation in Carbonate Sediments, Kaneohe Bay, Oahu, HI

Measurement and Modeling of High‐Frequency Acoustic Properties in Fine Sandy Sediments

“…The measured attenuation data run essentially parallel to, but below, the Biot-Stoll model fits when the sound speed data get a good fit, which is different to the result in Zimmer et al (2010). The attenuation data show a steeper trend than the Biot-Stoll model curve trend when the sound speed data get a good fit, which is similar to the result in Nosal et al (2008) and in Zimmer et al (2010). We tried to get a best model-data fit by varying the input parameters in the calculated data range as shown in Table 3.…”

“…Many studies have focused on the frequency dependence of sound speed and attenuation within the frequency range from a few hundred of hertz up to a few thousand of kilohertz (Zimmer et al, 2010) and used the measured data to assess the applicability of the geoacoustic propagation models, including Biot-Stoll model (Chotiros & Isakson, 2004;Nosal et al, 2008), EDFM model (Williams, 2001;Yu et al, 2017), GS and VGS models Buckingham, 2005). Biot theory focused on the relative motion between the framework and the pore fluid (Biot, 1956a(Biot, , 1956b and can be expressed as Biot-Stoll model with a number of input physical parameters, including permeability, porosity, pore size, and tortuosity, as well as bulk modulus and density of sediment grains, bulk modulus, density, and viscosity of the pore fluid (Stoll, 1998;Stoll & Baustia, 1998).…”