| Note |
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Please note that the Marine Gravitymeter System can only be operated upon request. Request operations with the Marine Gravitymeter System to AWI-Logistics in sufficient time prior to the cruise. |
Summary
| Sensorweb integration |
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| urn | vessel:polarstern:LR_Grav1031 |
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| contenttype | Summary |
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A gravimeter is used to measure the gravitational field of the earth. The gravimeter on board of Polarstern is situated on a gyro-stabilized platform to compensate for the ships movement. It is a spring and mass system with magnetic compensation, the length of the spring being proportional to the gravitation. |
| Sensorweb integration |
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| urn | vessel:polarstern:LR_Grav1031 |
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| contenttype | Metadata |
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| Manufacturer | Bodensee Gravitymeter Geosystem GmbH (BGGS) |
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| Model | KSS 32 M |
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| Serial No. | n/a |
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| Type | gravimeter |
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| Sensorweb integration |
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| urn | vessel:polarstern:LR_Grav1031 |
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| contenttype | Contacts |
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| Name | Institution | Role |
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| Graeme Eagles | Alfred-Wegener Institute of Polar and Marine Research | Principal Investigator | | Graeme Eagles | Alfred-Wegener Institute of Polar and Marine Research | Data Scientist | | Thorsten Eggers | Alfred-Wegener-Institute for Polar and Marine Research | Engineer In Charge | | Alfred Wegener Institute for Polar and Marine Research | Alfred Wegener Institute, Helmholz Centre for Polar and Marine Research | Owner | | polarstern dship | Alfred-Wegener-Institute | dship connector |
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Components
| Metadata (Metadata Plugin) |
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The Marine Gravitymeter System consits of the Gravitymeter KSS 32-M and the operator-laptop in the Gravitymeter Room on board. The Gravitymeter control system and data acquisition software BGGS DACQS is installed on the laptop.
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Position
| Sensorweb integration |
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| urn | vessel:polarstern:LR_Grav1031 |
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| contenttype | LocalFrame |
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| Origin Description: | xyz-position from Alignment Survey Report RV Polarstern (June 2016), located in F632 | | X: | 56.99 m
(X-0 is at the center of der rudder (ref. design drawing of the vessel), positive X-axis is forward and along vessel centerline) | | Y: | 0.147 m
(Y-0 at centerline, positive Y-axis is portside) | | Z: | 11.81 m
(Z-0 is set to the lowest point of the keel, positive Z-axis is upwards) |
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Data logging, storage and archiving
Logged parameters
| Sensorweb integration |
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| urn | vessel:polarstern:LR_Grav1031 |
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| contenttype | Parameters |
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| Parameter | Sensor Output Type | Unit |
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| acceleration | acceleration | m/s^2 | | gravity | gravity | mGal |
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Central geographical ship's position and time standard
| Metadata (Metadata Plugin) |
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Rawdata storage on board
| Metadata (Metadata Plugin) |
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Dship
| Metadata (Metadata Plugin) |
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Data archiving on land
| Metadata (Metadata Plugin) |
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Documentation
The manuals are located in the Gravitymeter Room on board.
| Sensorweb integration |
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| urn | vessel:polarstern:LR_Grav1031 |
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| contenttype | Resources |
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