Download or read book Measurement of the Acoustic and Geotechnical Properties of Marine Sediment Cores written by S. Buchan and published by . This book was released on 1966* with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Correlation Between Geotechnical and Acoustic Properties of Marine Sediments Outer Placentia Bay Newfoundland written by Shaden Tawfik Abdel-Gawad and published by . This book was released on 1980 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Acoustic and Geotechnical Properties of North Atlantic Cores written by S. Buchan and published by . This book was released on 1971 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relations Between the Acoustic and Geotechnical Properties of Marine Sediments written by S. Buchan and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics of Sound in Marine Sediments written by Lloyd Hampton and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phenomenon of sound transmissions through marine sediments is of extreme interest to both the United States civilian and Navy research communities. Both communities have conducted research within the field of this phenomenon approaching it from different perspectives. The academic research community has approached it as a technique for studying sedimentary and crustal structures of the ocean basins. The Navy research community has approached it as an additional variable in the predictability of sound trans mission through oceanic waters. In order to join these diverse talents, with the principal aim of bringing into sharp focus the state-of-the-science in the problems relating to the behavior of sound in marine sediments, the Office of Naval Research organized and sponsored an invited symposium on this subject. The papers published in this volume are the results of this symposium and mark the frontiers in the state-of-the-art. The symposia series were based on five research areas identified by ONR as being particularly suitable for critical review and for the appraisal of future research trends. These areas include: 1. Physics of Sound in Marine Sediments, 2. Physical and Engineering Properties of Deep-Sea Sediments, 3. The Role of Bottom Currents in Sea Floor Geological Processes, 4. Nephelometry and the Optical Properties of the Ocean I'laters, S. Natural Gases in Marine Sediments and Their Mode of Distribution. These five areas also form some of the research priorities of the ONR program in Marine Geology and Geophysics.
Download or read book In Situ High frequency Acoustic Propagation Measurements in Marine Sediments in the Santa Barbara Shelf California written by Y. Igarashi and published by . This book was released on 1973 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements were made of sound speed and attenuation in marine sediments at 15, 30, and 60kHz by means of in situ acoustic probe instrumentation in conjunction with CURV II. These experiments were conducted in silty sand and sandy silt Continental Shelf areas of the Santa Barbara Channel, California. The main conclusions are: (1) attenuation was found to be about 3, 10, and 20 dB per meter at 15, 30, and 60 kHz, respectively; (2) for the attenuation equation, alpha = K(f to the nth power) (where alpha is sound attenuation in dB per meter, K is a dimensional material parameter, and f is frequency in kHz), the exponent, n, was found to be about 1.2, and K varied from approximately 0.1 to 0.2; (3) no significant sound-speed dispersion was found, in agreement with many other investigations; and (4) individual acoustic measurements made in close proximity to one another in a nominally homogeneous bottom can vary appreciably, although their average values may be in close agreement. (Author).
Download or read book The Estimation of Geotechnical Properties of Marine Sediments from Their Acoustic Reflectivity written by Martin Ebel and published by . This book was released on 1993 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints written by and published by . This book was released on 1972 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected reprints written by Atlantic Oceanographic and Meteorological Laboratory and published by . This book was released on 1973 with total page 1486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints written by Atlantic Oceanographic and Meteorological Laboratories and published by . This book was released on 1970 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of North American Geology written by Geological Survey (U.S.) and published by . This book was released on 1968-07 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical Abstracts written by and published by . This book was released on 1969 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling Acoustic and Geotechnical Properties of Simulated in Situ Marine Sediments written by Michele Kruse and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Correlation of Acoustic and Physical Properties of Marine Sediments Proceedings of the Acoustic geotechnical Correlation Workshop written by and published by . This book was released on 1987 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic Retrieval of Seafloor Geotechnics written by Homa J. Lee and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acoustic profiling is a rapid and relatively economical means of obtaining considerable information about large areas of the seafloor. Acoustic data can be quantified, and basic theory suggests that these data incorporate seafloor physical parameters similar to those used by geotechnical engineers in foudation and anchor design. This report summarizes the basic acoustic reflection theories and reviews earlier filed efforts to quantitatively classify the seafloor with acoustics. It appears that sediment density can be measured with an accuracy range of about + or - 10%. This in turn leads to sediment classification into at least two categories: sand and clay. Experiments to date have not had sufficient control of physical sampling relative to acoustic testing, and greater accuracies may be possible. The potential for indirectly measuring shear wave velocity and direclty inferring shear strength is explored and rejected for the short term. Shear information is contained in acoustic data but is too small to be measured. Shear strength can, in many cases, be deduced from acoustically measured density data, if a few cores are available for calibration. Further work is recommended to determine the true accuracy of acoustic measurements and to develop quantitative acoustic systems to satisfy Navy needs in seafloor geotechnical engineering. (Author).
Download or read book Correlation of Acoustic and Physical Properties of Marine Sediments Proceedings of the Acoustic geotechnical Correlation Workshop written by P. G. Simpkin and published by . This book was released on 1902 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Acoustic geotechnical Correlation Workshop written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
