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
The WorkHorse Mariner is designed to measure real-time current profiles of coastal, inshore, and open ocean water current structures from temporary or permanent mounting in a vessel. It gives fine along-track resolution thanks to RDI’s superior low-noise data, including bottom tracking.
| Manufacturer | Teledyne RDI |
|---|---|
| Model | WHMVM600-RE-UG10 |
| Serial No. | Transducer S/N 38129 |
| Type | current profiler |
| REGISTRY-Link | ↪ REGISTRY (11172) |
Transducer Frequency
600_kHz
Contacts
| Name | Institution | Role |
|---|---|---|
| Ralf Krocker | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research | Device Contact |
| FIELAX GmbH | FIELAX Gesellschaft für wissenschaftliche Datenverarbeitung mbH | Device Contact |
Components
The transducer of the Workhorse Mariner 600 kHz is hull mounted in the keel of RV Heincke. The angle between the ship centerline and transducer centerline is 45° direction starboard. The electronics chassis and the operator PC are situated in the Mess- and Registrierraum on the main deck. The data acquisition and processing software VmDas and the synchronizing software Easy2Sync are installed on the computer.
Position
| Info | xyz-position of the 600kHz transducer from Alignment Survey Report RV Heincke (January 2016) The transducer is hull mounted in the keel of RV Heincke. The operators PC and the electronic chassis are situated in the Mess- and Registrierraum. |
| X | 42.829 m (Positive X-axis is forward and along the vessels centerline. Origin is ship stern.) |
| Y | 0.526 m (Positive Y-axis is portside of centerline) |
| Z | 0.077 m (Positive Z-axis is upwards of basis) |
Data logging, storage and archiving
Logged parameters
| Parameter | O2ARegistry Output Type | Unit |
|---|---|---|
| current velocities in depth range up to 50m | current speed | m/s |
Central geographical ship's position and time standard
The GPS position of the Trimble GPS receiver antenna is stored in the data files. The position is NOT centralized to the ADCP transducers. Time synchronisation is achieved via NTP.
Rawdata storage on board
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: xdc\home\scientists\data\ADCP\... |
|---|---|
directory name | CruiseNo e.g. HE507 |
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 |
Data volume (MB per day) ca | 350 |
Number of files per day ca | 35 |
DShip
The ADCP data are not transferred to DShip.
Data archiving on land
After consultation with the data scientist and AWI Logistics the ADCP data including meta data may be transferred to PANGAEA (https://www.pangaea.de/
).