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| Note | ||
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Please note that operations of the Fishing Fishnet Echo Sounders 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 the Fishnet Echo Sounders to AWI-Logistics in sufficient time prior to the cruise and clarify the data transfer after the cruise. |
Summary
Transducer Frequency:
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Contacts
Components
| Metadata (Metadata Plugin) | ||
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The system consits of five "split beam" transducers (ES-18, ES-38B, ES-70-7C, ES-120-7C, ES-200-7C) located in the box keel, five General Purpose Transceivers (GPTs), two EK80 WBTs (45-90 kHz, 90-160 kHz) and a computer with installed data acquisition and processing software ER60 and EK80 in room A113. |
Subdevices
Position
Data logging, storage and archiving
Logged parameters
Central geographical ship's position and time standard
| Metadata (Metadata Plugin) | ||
|---|---|---|
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Time synchronising of the computers is regulated via the affiliation to the Windows domain. Additionally, the NMEA-String ZDA is stored in the data files.
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
| Metadata (Metadata Plugin) | ||
|---|---|---|
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Mass data: The data acquisition and processing software ER60 creates rawdata in the mass storage. Please note that there will be a transit from Simrad EK60 to EK80 in 2018 changing data structure and volume.
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| Metadata list |
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|| root directory | \\polsrv1\data01\fishsounder\ ||
|| directory name | CruiseNo \\ e.g. \\ ANT25_3 ||
|| file name | CruiseNo-Dyyyymmdd-Thhmmss.raw \\ with: \\ yyyy = year \\ mm = month \\ dd = day \\ hh = hour \\ mm = minute \\ ss = second \\ e.g. \\ ANT25_3-D20090113-T144735.raw ||
|| Data volume (MB per day) ca | 3500 ||
|| Number of files per day ca | 100 || |
Dship
| Metadata (Metadata Plugin) | ||
|---|---|---|
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Reduced set of measurement data. |
| Metadata list |
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|| 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
| Metadata (Metadata Plugin) | ||
|---|---|---|
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After the cruise, the operator transfers the measurement data along with required meta data to AWI after consultaion with the data scientist and AWI Logistics. Then, the data including meta data can be extracted from https://www.pangaea.de/ (for authorized users only). DShip data set can be extracted from https://dms.awi.de. |
| Metadata list |
|---|
|| File format(s) | *.txt ||
|| Calibration certificates | NO || |
Documentation
| Sensorweb integration | ||||
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The net echo sounders are used for information about the status of fishnets deployed in the water. Information about depth of the net, distance to seabed and amount of fish coming in are provided. |
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Transducer Frequency:
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Contacts
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Components
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Position
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Data logging, storage and archiving
Logged parameters
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No parameters available. |
Documentation
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