Author: Mitchell PetersPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Sea Refractions
Author: Mitchell PetersOcean Seismo-Acoustics
Author: T. AkalPublisher: Springer Science & Business Media
ISBN: 1461322014
Category : Science
Languages : en
Pages : 898
Book Description
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.
Antarctic Journal of the United States
Author: United States Exploring Expedition
Author: Narrative of the United States Exploring Expedition
Author: Charles WilkesNarrative of the United States Exploring Expedition During the Years 1838, 1839, 1840, 1841, 1842
Author: Charles WilkesPublisher:
ISBN:
Category : Antarctica
Languages : en
Pages : 646
Book Description
Narrative of the United States Exploring Expedition During the Years 1838, 1839, 1840, 1841, 1842 by Charles Wilkes
Author: Sailing Directions (planning Guide) for the South Pacific Ocean
Author: United States. Defense Mapping Agency. Hydrographic/Topographic CenterPublisher:
ISBN:
Category : Pilot guides
Languages : en
Pages : 510
Book Description
Acquiring Better Seismic Data
Author: W.C. PritchettPublisher: Springer Science & Business Media
ISBN: 9780412350009
Category : Science
Languages : en
Pages : 470
Book Description
Written as a reference for geophysicists, seismic surveyors and engineers in the mining, hydrocarbon and water industries this book attempts to recommend solutions to problems commonly experienced in the field. It recommends careful planning and executions of operations at this stage of resources exploration, results in large cost and time saving.
Author: