Attention:
Please note that operations of the Fishing Echo Sounder Simrad EK 60 / EK 80 requires experienced scientific staff on board and can be only operated on request. The system is not operated by the ship's crew. Request operations with the Fishing Echo Sounder Simrad EK 60 / EK 80 to AWI-Logistics in sufficient time prior to the cruise and clarify the data transfer after the cruise.
Data quality of Fishing Echo Sounder Simrad EK 60 / EK 80 is decreased by operating other Echo Sounders. Repeatable disturbances were detected from simultaneously operating a) POSIDONIA, b) Sonar Doppler Speed Log DOLOG and c) Sediment Echo Sounder Parasound P70. Switch off these Echo Sounders for high data quality.
Summary
The sounder operates several frequencies simultaneously thus allowing to detect fish in different depths.
vessel:polarstern:simrad_ek_60___ek_80 (1394)
Manufacturer | Kongsberg |
---|---|
Model | Simrad EK 60 / EK 80 |
Serial No. | n/a |
Type | echo sounder |
Transducer Frequency:
Contacts
Name | Institution | Role |
---|---|---|
Sören Krägefsky | Alfred-Wegener-Institute for Polar and Marine Research | Engineer In Charge, Data Scientist |
Giulia Castellani | AWI | Data Provider |
Alfred Wegener Institute for Polar and Marine Research | Alfred Wegener Institute, Helmholz Centre for Polar and Marine Research | Owner |
Svensson | Data Provider | |
Snoeijs-Leijonmalm | Stockholm University | Data Provider |
Katrin Schmidt | University of Plymouth | Data Provider |
Serdar Sakinan | Wageningen Marine Research | Data Provider |
Robert Campbell | University of Rhode Island | Data Provider |
Components
Subdevices
Name | Model | Serial Number |
---|---|---|
Calibration System for Simrad EK60/EK80 | n/a | |
F120/200_kHz transducer | Simrad EK60/EK80 | n/a |
F18_kHz transducer | EK60/EK80 | n/a |
F38_kHz transducer | Simrad EK60/EK80 | n/a |
F70_kHz transducer | Simrad EK60/EK80 | n/a |
Position
Info | xyz-position calculated from Alignment Survey Report RV Polarstern (2016), transducers located in box keel, electronics located in E525, computers located in A113 |
X | 73.14 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 | 0.022 m (Y-0 at centerline, positive Y-axis is portside ) |
Z | 0.012 m (Z-0 is set to the lowest point of the keel, positive Z-axis is upwards) |
Data logging, storage and archiving
Logged parameters
Parameter | Sensor Output Type | Unit |
---|---|---|
depth | depth | m |
Central geographical ship's position and time standard
The geographical ship's position is transferred to the Master PC together with the NMEA-String and to the data files. There is no centering of the GPS Position to the transducers.
Rawdata storage on board
root directory |
\\polsrv1\data01\fishsounder| |
---|---|
directory name |
CruiseNo |
file name |
CruiseNo-Dyyyymmdd-Thhmmss.raw |
Data volume (MB per day) ca |
3500 |
Number of files per day ca |
100 |
Dship
Device name |
fishing echo sounder |
---|---|
Parameters |
depth (18 kHz) [m]; depth (38 kHz) [m]; depth (70 kHz) [m]; depth (120 kHz) [m]; depth (200 kHz) [m] |
Data archiving on land
File format(s) |
*.txt |
---|---|
Calibration certificates |
NO |