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Attention:

Please note that operations of the Fishing Echo Sounder Simrad EK 60 / EK 80 requires experienced scientific staff on board. The system is not operated by the ship's crew. Announce operations with the Fishing Echo Sounder Simrad EK 60 / EK 80 to AWI-Logistics 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 wered detected from simultaneously operating a) POSIDONIA, b) Deep Water Sounder Simrad EA 500 DWS, c) Sonar Doppler Speed Log DOLOG and d) Sediment Echo Sounder Parasound P70. Switch off these Echo Sounders for high data quality.

Summary

Transducer Frequency:

18, 38, 70, 120, 200 kHz

Responsible Persons

Components

The system consits of five "split beam" transducers (ES-18, ES-38B, ES-70C, ES-120C, ES-200C) located in the box keel, five General Purpose Transceivers (GPTs) in Geräteraum and a computer with data acquisition and processing software installed in wissenschaftlichen Arbeitsraum.

38 kHz

70 kHz

120 und 200 kHz

Subdevices

Position

Data logging, storage and archiving

Measurement data are stored in the local data volume and in the DShip-System on board.
After the cruise, the operator must transfer the measurement data to AWI via central AWI-data-transfer, where required meta data are added for data archiving and further processing.

Logged parameters

Central geographical ship's position and time standard

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

 

Rohdaten an Bord: Die herstellerspezifische Datenerfassungs- und Verarbeitungs-Software ER60 erzeugt Rohdaten mit folgender Dateistruktur: || Stammverzeichnis || Verzeichnisname || Dateiname || | \\polsrv1\data01\fishsounder\ | Reisenummer | Dateipräfix-Dyyyymmdd-Thhmmss.raw | mit yyyy = Jahr; mm = Monat; dd = Tag; hh = Stunde; mm = Minute; ss = Sekunde. so z.B.: || Stammverzeichnis || Verzeichnisname || Dateiname || | \\polsrv1\data01\fishsounder\ | ANT25-3\ | ANT25_3-D20090113-T144735.raw | | | | ANT25_3-D20090113-T145849.raw| Dabei belegt die Dateistruktur das folgende Volumen: ||Volumen (MB pro Tag) ca.|3500 || || Anzahl Dateien pro Tag ca. | 100|
Rohdaten an Land: Je nach Absprache mit der AWI-Logistik und mit dem oben genannten Geräteverantwortlichen besteht die Möglichkeit die gewonnenen Rohdaten, nachdem sie mit Metadaten versehen worden sind, über PANGAEA zur Verfügung zu stellen.


The data acquisition and processing software VmDas creates rawdata on the local drive of the computer.
Every hour the software Easy2Sync copies the data to a local backup file structure.
Every 3 hours the software Easy2Sync synchronizes the backup data to the directory structure of the mass storage.
Attention: Deleting files in the directory structure of the mass storage will also delete these files in the backup file structure with the next synchronization run. But: As long as these files are not removed from the local rawdata drive these files will be copied again to the local backup file structure with the next backup run and to the directory structure of the mass storage with the next synchronization run.

root directory

C:\ADCPData\
or
C:\ADCPDataBackup\
or
\\polsrv1\data01\ADCP\...

directory name

CruiseNo \
e.g.
ANT25_3\

file name

CruiseNoVVV_RRRRRR.ENR
CruiseNoVVV_RRRRRR.ENS
CruiseNoVVV_RRRRRR.ENX
CruiseNoVVV_RRRRRR.LTA
CruiseNoVVV_RRRRRR.N1R
CruiseNoVVV_RRRRRR.NMS
CruiseNoVVV_RRRRRR.STA
CruiseNoVVV_RRRRRR.LOG
CruiseNoVVV_RRRRRR.VMO
with:
VVV = version No.
RRRRRR = running No.
e.g.
ANT25_3012_000000.ENR
ANT25_3012_000000.N1R
ANT25_3012_000000.LOG
...
ANT25_3012_000001.ENR
ANT25_3012_000001.N1R
ANT25_3012_000001.LOG
...

Data volume (MB per day) ca

350

Number of files per day ca

35

Dship

Es werden keine Daten an das DShip-System übergeben.

Data archiving on land

After the cruise the operator transfers the complete measurement data to AWI via central AWI-data-transfer. Then, the data (including meta data) can be extracted from https://www.pangaea.de/ (for authorized users only). The reduced, unevaluated DShip data set can be extracted from https://dms.awi.de.

PANGAEA Directory structure:

/<PANGAEA-Dir>/ADCP/<CruiseNo>/

File format(s)

See: Handbuch VmDas Quick Start Guide

Calibration certificates

NO

Documentation

External Manuals

Events

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