Browsing by Author "Richardson, Michael D."
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Attenuation of shear waves in near-surface sediments
Richardson, Michael D. (NATO. SACLANTCEN, 1997)In situ measurement of compressional and shear speed and compressional attenuation in near-surface marine sediments is a well-developed technology but techniques required to measure shear attenuation have lagged behind. ... -
High-resolution characterization of seafloor sediments for modeling acoustic backscatter
Orsi, Thomas H.; Duncan, Michael E.; Lyons, Anthony P.; Briggs, Kevin B.; Richardson, Michael D.; Anderson, Aubrey L. (NATO. SACLANTCEN, 1997)Quantitative information on fine-scale sediment inhomogeneity is extremely scarce and sorely needed for developing realistic volume scattering models. To address this deficiency, we present a novel approach for sediment ... -
Sediment shear waves: a comparison of in situ and laboratory measurements
Richardson, Michael D.; Muzi, Enrico; Troiano, Luigi; Miaschi, Bruno (NATO. SACLANTCEN, 1989/03)Surficial sediment shear wave velocity measurements were made at eight sites (water depths 7-22 m) -
Spatial variability of surficial shallow water sediment geoacoustic properties
Richardson, Michael D. (NATO. SACLANTCEN, 1986/06)Variability of surficial sediment geoacoustic properties was determined from cores collected at eight shallow-water continental shelf regions in the U.S., Italy and Australia. Highly porous muds found in low energy ...