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Development and evaluations of the broadband ocean bottom seismometer (Yardbird-BB OBS) in Taiwan
This study focuses on develo** and evaluating the broadband ocean bottom seismometer (Yardbird-BB OBS) in Taiwan. The Yardbird-BB OBS is a crucial...
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First-Arrival Picking Method for Active Source Data with Ocean Bottom Seismometers Based on Spatial Waveform Variation Characteristics
The precision and reliability of first-arrival picking are crucial for determining the accuracy of geological structure inversion using active source...
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A Robust Workflow for Acquiring and Preprocessing Ambient Vibration Data from Small Aperture Ocean Bottom Seismometer Arrays to Extract Scholte and Love Waves Phase-Velocity Dispersion Curves
The phase-velocity dispersion curve (DC) is an important characteristic of the propagation of surface waves in sedimentary environments. Although the...
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Seabed Physical Parameter Research Based on Active-Source OBS Data in the Chukchi Sea Shelf of the Arctic
The acquisition of seabed physical parameters is one of the focuses of marine acoustic researches. However, the active-source ocean bottom...
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Acoustic–Elastic Coupled Equations for Joint Elastic Imaging of TS and Sparse OBN/OBS Data
Elastic wave imaging with ocean-bottom four-component (4C) seismic data offers unique advantages in offshore oil and gas exploration, but for sparse...
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Fault geometry of M6-class normal-faulting earthquakes in the outer trench slope of Japan Trench from ocean bottom seismograph observations
Since the 2011 Mw 9.0 Tohoku-oki earthquake, intra-plate normal-faulting earthquakes, including several M7-class earthquakes, have occurred in the...
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Shear wave velocity inversion of marine sediments using deep-water OBS Scholte-wave data
Acoustic velocity varies in deep-water environments, and the variable-velocity seawater can affect the dispersion characteristics of Scholte wave. To...
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Precise aftershock distribution of the 2019 Yamagata-oki earthquake using newly developed simple anchored-buoy ocean bottom seismometers and land seismic stations
An earthquake with a magnitude of 6.7 occurred in the Japan Sea off Yamagata on June 18, 2019. The mainshock had a source mechanism of reverse-fault...
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Microseismicity in the Persian Gulf and in the Zagros Mountain Massif according to OBS Observations
AbstractOBS observations in the Persian Gulf during a short time span have revealed the occurrence of low magnitude ( M L = –0.2–2.9) earthquakes with...
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High-frequency S and S-coda waves at ocean-bottom seismometers
To clarify the characteristics of high-frequency (> 1 Hz) S and S -coda waves at ocean-bottom seismometers (OBSs), we analyzed seismograms observed at...
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A new method for OBS relocation using direct water-wave arrival times from a shooting line and accurate bathymetric data
Relocation of the ocean-bottom seismometer (OBS) is a basic step for subsequent inversion of stratigraphic structure. Obtaining sufficient and...
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Submarine volcanism in the southern margin of the South China Sea
Submarine volcanism is widely developed in the South China Sea (SCS). However, the characteristics, distribution, and genesis of submarine volcanoes...
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Origin of a giant fuzzy reflection zone and its implication for natural gas exploration in the southwestern Qiongdongnan Basin of the South China Sea
The southwestern depression of the Qiongdongnan Basin (QDNB) hosts thick Cenozoic sediments and awaits major hydrocarbon discovery. Multichannel...
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A fast inversion method for ocean parameters based on dispersion curves with a single hydrophone
The dispersion characteristics of shallow water can be described by the dispersion curves, which contain substantial ocean parameter information. A...
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Shallow tectonic tremor activities in Hyuga-nada, Nankai subduction zone, based on long-term broadband ocean bottom seismic observations
The study of slow earthquake activity, which occurs in the shallow and deep sides of seismogenic zone, is crucial for understanding subduction zones,...
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Gravity modelling of crustal architecture and heterogeneity in the Nansha Block, South China Sea
The stretched structure and heterogeneity of the crust of the Nansha Block, the southern continental margin of the South China Sea (SCS), are not...
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“N”-shaped Y/X coda spectral ratio observed for in-line-type OBS networks; S-net and ETMC: interpretation based on natural vibration of pressure vessel
We have identified “N”-shaped Y/X amplitude spectral ratios in S-coda records from a significant number of OBSs (ocean bottom seismometers) belonging...
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Bottom Simulating Reflections in Antarctica
There are several reports of gas hydrates offshore Antarctica. These reports come from the South Shetland continental margin, the Weddel Sea, the...
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