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. |
The Ocean Surveyor/Ocean Observer is designed for current profile measurement in the upper ocean water. The system consists of a transducer and electronics chassis. Data are transmitted in either an ASCII or binary format through the I/O cable. |
|
150_kHz
|
The transducer of the Ocean Surveyor 150 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.
|
|
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.
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 |
The ADCP data are not transferred to DShip.
After consultation with the data scientist and AWI Logistics the ADCP data including meta data may be transferred to PANGAEA (https://www.pangaea.de/).