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| Titel |
KISAP: New in situ seafloor velocity measurement tool |
| VerfasserIn |
Gil Young Kim, Ki Ju Park, Young Kyo Seo, Gwang Soo Lee, Seong Pil Kim |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250108939
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| Publikation (Nr.) |
 EGU/EGU2015-8783.pdf |
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| Zusammenfassung |
| The KISAP (KIGAM Seafloor Acoustic Prober) is an instrument developed to obtain in situ
compressional wave velocity and attenuation profiles for upper several meters of sedimentary
layer at the sediment-seawater interface. This instrument consists of independent recording
channels (NI cDAQ-9132, National Instruments) with a linear array of receivers (5 Hz-20
kHz, GeoSpectrum Technologies Inc) with depth below acoustic source (acoustic pinger,
1-50 kHz frequency, GeoSpectrum Technologies Inc). It provides in situ recording of
full waveforms to determine interval velocity and attenuation. The system can be
attached to a corer (gravity and/or piston corer) or to a specially designed prober. The
experiments for in situ test were carried out in east coast of Korea and Songjeong beach,
Pusan, Korea. We collected good waveform data to be calculated in situ velocity
from KISAP test. Therefore KISAP can be used to collect in situ acoustic data. In
addition, it can be effectively used to calibrate previous laboratory data to in situ data. |
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