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Changes in seismic velocity and apparent attenuation due to isotropic and anisotropic scattering : results from physical modeling

Creator:

Dubendorff, Bruce H.

Abstract:

Much work is presently being done concerning small scale heterogeneities in the earth's crust. These heterogeneities range from pores in sedimentary rocks up to fluctuations in the density and seismic constants of the earth's crust with scale lengths of kilometers. The ability to study and quantify these heterogeneities using seismic...

Resource Type:

Dissertation

Full Text:

-dimensional and one two-dimensional) are used to investigate the scattering of seismic waves from small scale
Detection, classification and ecology of acoustic scattering layers

Creator:

Cade, David Edmund

Abstract:

Acoustic scattering layers of biological origin have been observed for nearly 70 years across the world’s oceans. The organisms that comprise these layers are known to be important features in most oceanic ecosystems, providing a vital trophic link between small phytoplankton grazers and larger species. There are many aspects of...

Resource Type:

Masters Thesis

Full Text:

, scattering layer boundaries were identified in data from the Gulf of California. The bottom of the
The biological and acoustical structure of sound scattering layers in the ocean off Oregon

Creator:

Kalish, John M.

Resource Type:

Masters Thesis

Full Text:

(>50 kHz) to eliminate resonant scattering in sound scattering layer studies (Baird and Wilson, 1977