Attention:
Please note that operations of the Acoustic Doppler Current Profiler requires experienced scientific staff on board. The system is not operated by the ship's crew. Announce operations with the Acoustic Doppler Current Profiler to AWI-Logistics prior to the cruise and clarify the data transfer after the cruise.
Summary
Transducer Frequency:
Responsible Persons
Components
The data acquisition and processing software VmDas and the synchronizing software Easy2Sync are installed on the computer.
The 150kHz transducer is mounted behind an ice protection window and reaches water depth up to 350m with resolution of 4m ("Cell Size" at 1 to 5 kn ship's speed) and accuracy of about 0.30 m/s for a Single-Ping measurement.
The angle between the ship centerline and transducer centerline is 45° direction starboard.
Position
Data logging, storage and archiving
Logged parameters
Central geographical ship's position and time standard
Rawdata storage on board
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\ |
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directory name |
CruiseNo |
file name |
CruiseNoVVV_RRRRRR.ENR |
Data volume (MB per day) ca |
350 |
Number of files per day ca |
35 |
Dship
Device name |
ADCP |
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Parameters |
average east velocity [m/s]; average north velocity [m/s]; averaging interval [s]; maximum depth for averaging [m]; minimum depth for averaging [m]; number of measurements used for averaging; true horizontal velocity [m/s]; true velocity direction [°]; up velocity [m/s] |
Data archiving on land
File format(s) |
See: Handbuch VmDas Quick Start Guide |
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Calibration certificates |
NO |
Documentation
See also http://www.rdinstruments.com/