Attention:
Please note that operations of the Sediment Echo Sounder Atlas Parasound P70 requires experienced scientific staff on board for permanent supervision of data aquisition and storage. The system is not operated by the ship's crew. Announce operations with the Sediment Echo Sounder Atlas Parasound P70 to AWI-Logistics prior to the cruise and clarify the data transfer after the cruise.
Summary
Transducer Frequency
Contacts
Components
The transducer consists of four segments and is mounted without ice protection window in the box keel. The transducer transmits in the frequency range of 18 - 39 kHz and reaches water depth of 10 to 11000m. Frequency interferences generate "parametric low frequencies" between 0.5 and 6.0 kHz. Penetration depth into the sediment accounts for > 200m (depending on sediment properties) and the resolution is 6.1 cm.
Position
Data logging, storage and archiving
Logged parameters
Central geographical ship's position and time standard
The recorded geographical ship's position is the location of the central motion sensor MINS. The lever between transducer and the central motionsensor MINS is considered.
Rawdata storage on board
root directory |
R:\data01\parasound| |
---|---|
directory name |
CruiseNo\XXX_ASD_YYYYMMDD |
file name |
PS3XXX_YYYY-MM-DDThhmmssZ_<identNo>.asd.acf |
Data volume (MB per day) ca |
10000 |
Number of files per day ca |
1000 |
Dship
Device name |
parasound |
---|---|
Parameters |
depth [m] |
Data archiving on land
File format(s) |
stored in PANGAEA or DShip system |
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Calibration certificates |
NO |