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Comment: Automatically updated by Registry2Confluence-Transporter (polarstern@ingestsrv1, ask o2a-support@awi.de for questions)

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Note
titleAttention:

The EM-Log is operated by ship's command only.

Summary

Sensorweb integration
urnvessel:polarstern:em-log
contenttypeSummary

The electromagnetic log measures the speed of the vessel through water.


Sensorweb integration
urnvessel:polarstern:em-log
contenttypeMetadata
ManufacturerSAGEM
ModelLHS
Serial No.n/a
Typespeed log
REGISTRY-Link↪ REGISTRY (627)


Sensorweb integration
urnvessel:polarstern:em-log
contenttypeImages

Image Added Image Added Image Added Image Added Image Added

Contacts

Sensorweb integration
urnvessel:polarstern:em-log
contenttypeContacts
Name Institution Role
Reederei LaeiszF. LaeiszEngineer In Charge

Components

Metadata (Metadata Plugin)
0Components
The system consists of the EM Log transducer located in box keel, the EM Log electronics box (G707) and the EM Log display on the bridge.

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Position
 Sensorweb integration
urnvessel:polarstern:em-log
contenttypeLocalFrame
Infoxyz-position of transducer from Alignment Survey Report RV Polarstern (June 2016), transducer located in box keel, electronics located on G-deck room G707, display located on bridge
X78.99 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-0.502 m
(Y-0 at centerline, positive Y-axis is portside)
Z0.022 m
(Z-0 is set to the lowest point of the keel, positive Z-axis is upwards) 
Data logging, storage and archiving
Logged parameters
 Sensorweb integration
urnvessel:polarstern:em-log
contenttypeParameters
 Parameter  O2ARegistry Output Type  Unit 
speedspeedknot
Central geographical ship's position and time standard
 Metadata (Metadata Plugin)
0timestandard
Time synchronising via DShip.
Geographical ship's position via DShip.
 Rawdata storage on board 
 Metadata (Metadata Plugin)
0Rawdata
Data storage in DShip system.

Dship
 Uncorrected measurement data.
 Metadata (Metadata Plugin)
0DShip

|| Device name | EM-Log || 
|| Parameters | speed \[kn\] ||
 Metadata list
Data archiving on land
After the cruise the DShip data set can be extracted from https://dms.awi.de.
 Metadata (Metadata Plugin)
0DataOnLand

 Metadata list
|| File format(s) | *.txt || 
|| Calibration certificates | ??? ||
Documentation
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