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Measurement And Correlation Of Acoustic Reflection And Sediment Properties Off Panama City Florida
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Book Synopsis Measurement and Correlation of Acoustic Reflection and Sediment Properties Off Panama City, Florida by : E. G. McLeroy
Download or read book Measurement and Correlation of Acoustic Reflection and Sediment Properties Off Panama City, Florida written by E. G. McLeroy and published by . This book was released on 1972 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuous fathometer echo measurements were made along a 1200-mile track in the Gulf of Mexico off Panama City, Florida. Bottom samples were taken at 160 locations in the 3500 square mile test area. The amplitude and length of the echoes at the 160 locations were compared with results of the laboratory measurements of various sediment parameters. The echo parameters are readily correlatable with sediment water content, porosity, and the fraction of silt- and clay-sized particles. The length of the echo is suggested as a good indicator of the grain size fraction. (Author).
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1973 with total page 1476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1978-05 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocean Seismo-Acoustics written by T. Akal and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seafloor investigation has long been a feature of not only seismology but also of acoustics. Indeed it was acoustics that produced depth sounders, giving us the first capability of producing both global and local maps of the seafloor. Subsequently, better instrumentation and techniques led to a clearer, more quantitative picture of the seabed itself, which stimulated new hypotheses such as seafloor spreading through the availability of more reliable data on sediment thickness over ocean basins and other bottom features. Geologists and geophysicists have used both acoustic and seismic methods to study the seabed by considering the propagation of signals arising from both natural seismic events and man-made impulsive sources. Although significant advances have been made in instrumentation, such as long towed geophysical arrays, ai r guns and ocean bot tom seismometers, the pic ture of the seafloor is still far from complete. Underwater acoustics concerns itself today with the phenomena of propagation and noise at frequencies and ranges that require an understanding of acoustic interaction at both of its boundaries, the sea surface and seafloor, over depths ranging from tens to thousands of meters. Much of the earlier higher frequency (>1 kHz) work included the characterization of the seafloor in regimes of reflection coefficients which were empirically derived from surveys. The results of these studies met with only limited success, confined as they were to those areas where survey data existed and lacking a physical understanding of the processes of reflection and scattering.
Book Synopsis Delaware Coast from Cape Henlopen to Fenwick Island, Rehoboth Beach/Dewey Beach Interim Feasibility Study by :
Download or read book Delaware Coast from Cape Henlopen to Fenwick Island, Rehoboth Beach/Dewey Beach Interim Feasibility Study written by and published by . This book was released on 1996 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1982 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1994 Ocean Sciences Meeting written by and published by . This book was released on 1994 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Geophysical Exploration at Sea by : Richard A. Geyer
Download or read book Handbook of Geophysical Exploration at Sea written by Richard A. Geyer and published by CRC Press. This book was released on 1991-12-26 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume handbook presents advanced research and operational information about hard minerals and hydrocarbons. It provides information in an integrated, interdisciplinary manner, stressing case histories. It includes review chapters, illustrations, graphs, tables, and color satellite images that present the results of gravity, geodetic, and seismic surveys and of 3-D sea floor sub-bottom visualizations. The data was obtained using satellites, aircraft, and ships from the Atlantic and Pacific Oceans, the Gulf of Mexico, and the Caribbean Sea. Major topics addressed in these volumes include geophysical methods used to explore for hydrocarbons, advanced radiometric and electrical methods for hard mineral searches, the role of geotechnology and seismic acoustics in overcoming geological hazards in selecting drilling sites and pipeline routes, and remote sensing techniques used to determine the physical properties of sediments.
Download or read book Proceedings written by and published by . This book was released on 1979 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Journal of the Acoustical Society of America by : Acoustical Society of America
Download or read book The Journal of the Acoustical Society of America written by Acoustical Society of America and published by . This book was released on 2002 with total page 1636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Index written by and published by . This book was released on 1973 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Earth Sciences by :
Download or read book Canadian Journal of Earth Sciences written by and published by . This book was released on 1980 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geographical Abstracts written by and published by . This book was released on 1975 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts with Indexes written by and published by . This book was released on 1987 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shallow Water Acoustic Backscatter and Reverberation Measurements Using a 68-kHz Cylindrical Array by : Timothy Cole Gallaudet
Download or read book Shallow Water Acoustic Backscatter and Reverberation Measurements Using a 68-kHz Cylindrical Array written by Timothy Cole Gallaudet and published by . This book was released on 2001 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: The characterization of high frequency, shallow water acoustic backscatter and reverberation is important because acoustic systems are used in many scientific, commercial, and military applications. The approach taken is to use data collected by the Toroidal Volume Search Sonar (TVSS), a 68 kHz multibeam sonar capable of 360 deg imaging in a vertical plane perpendicular to its direction of travel. With this unique capability, acoustic backscatter imagery of the seafloor, sea surface, and horizontal and vertical planes in the volume is constructed from data obtained in 200 m deep waters in the Northeastern Gulf of Mexico when the TVSS was towed 78 m below the surface, 735 m astern of a towship. The processed imagery provides a quasi-synoptic characterization of the spatial and temporal structure of boundary and volume acoustic backscatter and reverberation. Diffraction, element patterns, and high sidelobe levels are shown to be the most serious problems affecting cylindrical arrays such as the TVSS, and an amplitude shading method is presented for reducing the peak sidelobe levels of irregular-line and non-coplanar arrays. Errors in the towfish's attitude and motion sensor, and irregularities in the TVSS's transmitted beampattern produce artifacts in the TVSS-derived bathymetry and seafloor acoustic backscatter imagery. Correction strategies for these problems are described, which are unique in that they use environmental information extracted from both ocean boundaries. Sea surface and volume acoustic backscatter imagery is used to explore and characterize the structure of near-surface bubble clouds, schooling fish, and zooplankton. The simultaneous horizontal and vertical coverage provided by the TVSS is shown to be a primary advantage, motivating further use of multibeam sonars in these applications.
Book Synopsis Baseline Monitoring Studies, Mississippi, Alabama, Florida Outer Continental Shelf, 1975-1976: Discussion by :
Download or read book Baseline Monitoring Studies, Mississippi, Alabama, Florida Outer Continental Shelf, 1975-1976: Discussion written by and published by . This book was released on 1977 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bethany Beach written by and published by . This book was released on 1998 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
