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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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Manufacturer: LMF
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Responsible Persons
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 |
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Engineer in Charge | Thorsten Eggers |
Data Scientist | Wilfried JokatKarsten Gohl |
Components
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Subdevices
Seismic Compressor
Airguns Reflection Seismic
Airguns Refraction Seismic
Array
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.
Parts of airgun deployment rail are stored in container WCAU351219-7. |
Subdevices
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0 | Page |
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label | polarstern+seismic |
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space | EFPW |
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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 ??? |
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??? geographicalvia Polarstern Network.
Geographical ship's position ??? via Polarstern Network. |
Rawdata storage on board
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Dship
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???Raw data transferis temporarily stored to DShip. |
Data archiving on land
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|| File format(s) | ??? ||
|| Calibration certificates | ??? || |
Documentation
Events
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the data acquisition unit and written on tapes and backup tapes on a regular basis. |