Global ETD Search
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Showing 1 to 6 of 6 for “"ocean bottom seismometer"”.
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The Mechanisms and Triggering of Earthquakes in the Ridge-Transform Environment
… plate boundaries, however, are beneath our oceans making data collection, the key to furthering our knowledge about these zones, difficult. Recent advances in research vessels, seismic data acquisition techniques, and equipment built to withstand the temperatures and pressures within the …
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Acoustic full-waveform to elastic pre-stack seismic inversion of the Yakutat Terrane, Gulf of Alaska
… by a traveltime tomographic inversion of ocean-bottom seismometer and streamer seismic data. Data preconditioning includes muting, filtering, noise removal and amplitude rescaling of the field seismic data to match the corresponding amplitudes of the synthetic traces. The forward model is …
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The architecture, growth and tectono-stratigraphic significance of rift-oblique lineaments on the NE Atlantic Margin
… seismic reflection, seismic refraction and ocean bottom seismometer datasets, a series of rift-oblique lineaments (loosely referred to as ‘transfer zones’) have been identified which are commonly inferred to compartmentalise and laterally offset structural highs and depocentres developed …
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Seismic Tomography at Volcanic Rift Zones and Transpressional Plate Boundaries Askja Caldera and Macquarie Island
… south-west Pacific, that sits within an intra-oceanic transpressive regime. For decades, the presence or absence of a shallow magma body beneath Askja caldera has been a source of speculation in numerous studies. However, conclusive evidence from seismic tomography, a powerful tool for imaging …
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Very low frequency seismo-acoustic noise below the sea floor (0.2-10 Hz)
… the Stoneley and pseudo-Rayleigh wave. For ocean sediments, where the shear wave velocity is less than the acoustic wave velocity of water, only the Stoneley interface wave can exist. For well consolidated sediments and basalt, the shear velocity exceeds the acoustic wave velocity of water …
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Investigating blue and fin whale populations through passive acoustic monitoring using ocean bottom seismometers
… continuous data on a large spatial scale. Ocean bottom seismometers (OBSs), geophysical instruments used to study earthquakes through recording ground motion, are opportunistic PAM sensors that record large baleen whale calls. There are large amounts of publicly available OBS data, but …