Attention:
Please note that operations of the Fishnet Echo Sounders requires experienced scientific staff on board and can only be operated upon request. The system is not operated by the ship's crew. Request operations with the Fishnet Echo Sounders to AWI-Logistics in sufficient time prior to the cruise and clarify the data transfer after the cruise.
Summary
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. Small sensors are attached to the trawl and deliver data to the ship where they are received by hydrophones.
Manufacturer | Scanmar |
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Model | SS4-VTL, Minitransponder MTR-144 |
Serial No. | n/a |
Type | echo sounder |
Transducer Frequency
Contacts
Name | Institution | Role |
---|---|---|
Ralf Krocker | Alfred-Wegener-Institute for Polar and Marine Research | Engineer In Charge |
Components
The transducer of the Scanmar Fishnet Sounder system and the battery charging equipment are stored in the Umformerraum. Two hydrophones are permanently installed on the hull of the ship. Working places are situated on the bridge and in the Messraum. ScanBas System is installed on the PCs. It analyzes and visualizes the data.
Name | Model | Type |
---|---|---|
hydrophone starbord | not assigned | |
hydrophone portside | not assigned |
Position
Origin Description: | no xyz-position given. The devices are stored in the Umformerraum in the forecastle. |
Data logging, storage and archiving
Logged parameters
Parameter | Sensor Output Type | Unit |
---|---|---|
depth of trawl | depth | m |
Central geographical ship's position and time standard
Rawdata storage on board
root directory |
|
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directory name |
operators choice |
file name |
suggested name for NMEA data: Cruise No.-YYYY-MM-DD.txt |