Ocean Seismo-Acoustics: Low-Frequency Underwater Acoustics
Gespeichert in:
1. Verfasser: | |
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Format: | Elektronisch E-Book |
Sprache: | English |
Veröffentlicht: |
Boston, MA
Springer US
1986
|
Schriftenreihe: | NATO Conference Series, IV Marine Sciences
16 |
Schlagworte: | |
Online-Zugang: | Volltext |
Beschreibung: | 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 |
Beschreibung: | 1 Online-Ressource (XV, 915 p) |
ISBN: | 9781461322016 9781461292937 |
DOI: | 10.1007/978-1-4613-2201-6 |
Internformat
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500 | |a 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 | ||
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author | Akal, Tuncay |
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dewey-search | 551.46 |
dewey-sort | 3551.46 |
dewey-tens | 550 - Earth sciences |
discipline | Geologie / Paläontologie Physik |
doi_str_mv | 10.1007/978-1-4613-2201-6 |
format | Electronic eBook |
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spelling | Akal, Tuncay Verfasser aut Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics edited by Tuncay Akal, Jonathan M. Berkson Boston, MA Springer US 1986 1 Online-Ressource (XV, 915 p) txt rdacontent c rdamedia cr rdacarrier NATO Conference Series, IV Marine Sciences 16 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 Geography Oceanography Earth Sciences Geografie Geowissenschaften Seismoakustik (DE-588)4180764-9 gnd rswk-swf Meer (DE-588)4038301-5 gnd rswk-swf 1\p (DE-588)1071861417 Konferenzschrift 1985 La Spezia gnd-content Meer (DE-588)4038301-5 s Seismoakustik (DE-588)4180764-9 s 2\p DE-604 Berkson, Jonathan M. Sonstige oth https://doi.org/10.1007/978-1-4613-2201-6 Verlag Volltext 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 2\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
spellingShingle | Akal, Tuncay Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics Geography Oceanography Earth Sciences Geografie Geowissenschaften Seismoakustik (DE-588)4180764-9 gnd Meer (DE-588)4038301-5 gnd |
subject_GND | (DE-588)4180764-9 (DE-588)4038301-5 (DE-588)1071861417 |
title | Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics |
title_auth | Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics |
title_exact_search | Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics |
title_full | Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics edited by Tuncay Akal, Jonathan M. Berkson |
title_fullStr | Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics edited by Tuncay Akal, Jonathan M. Berkson |
title_full_unstemmed | Ocean Seismo-Acoustics Low-Frequency Underwater Acoustics edited by Tuncay Akal, Jonathan M. Berkson |
title_short | Ocean Seismo-Acoustics |
title_sort | ocean seismo acoustics low frequency underwater acoustics |
title_sub | Low-Frequency Underwater Acoustics |
topic | Geography Oceanography Earth Sciences Geografie Geowissenschaften Seismoakustik (DE-588)4180764-9 gnd Meer (DE-588)4038301-5 gnd |
topic_facet | Geography Oceanography Earth Sciences Geografie Geowissenschaften Seismoakustik Meer Konferenzschrift 1985 La Spezia |
url | https://doi.org/10.1007/978-1-4613-2201-6 |
work_keys_str_mv | AT akaltuncay oceanseismoacousticslowfrequencyunderwateracoustics AT berksonjonathanm oceanseismoacousticslowfrequencyunderwateracoustics |