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Please note that operations with the Seismic Equipment can only be operated upon request. Request operations with the Seismic Equipoment to AWI-Geophysics and AWI-Logistics in sufficient time prior to the cruise. Operations of the system require experienced scientific staff on board. The system is not operated by the ship's crew. |
Summary
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Marine seismic data acquisition is a technique to generate and record seismic waves in the subsurface. By determining location and shape of seismic reflections below the seafloor, a structural map of the subsurface can be created. For this you need a source for the seismic signal (Airguns) and receivers for recording the reflected (Hydrophone Streamer) or refracted (Ocean Bottom Seismometer) signals. |
Contacts
| Role | Name |
|---|---|
| Engineer in Charge | Thorsten Eggers |
| Data Scientist | Karsten Gohl |
Components
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The Marine Seismic System consits of onboard data control and acquisition computers and tape drives for data storage, a Hydrophone Streamer (reflection seismic) or Ocean Bottom Seismometer (OBS; refraction seismic) and an airgun cluster (GI-guns or G-guns) as seismic source. |
Subdevices
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Data logging, storage and archiving
Logged parameters
Central geographical ship's position and time standard
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Time synchronising via Polarstern Network. Geographical ship's position via Polarstern Network. |
Rawdata storage on board
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Raw data is temporarily stored to the data acquisition unit and written on tapes and backup tapes on a regular basis. |