Attention:
Please note: The system runs continuously during all cruises. Support is given by the board electricians. Plaease ask them if you need specific info, or contact the responsible AWI scientist.
Summary
Contacts
Components
The system consists of a flow-through unit for CO2 extraction at a membrane and CO2 detection by a Li-cor Infra Red (IR) analyser. The instrument reports "mole fraction of CO2 in wet air [ppm]". Values of "pCO2 [µatm] can only be obtained with shore-based data processing.
Position
Data logging, storage and archiving
Logged parameters
Central geographical ship's position and time standard
Time synchronising is regulated via DShip.
Geographical ship's position via DShip.
Geographical ship's position via DShip.
Rawdata storage on board
Data storage in the instrument itself and in the DShip system.
Dship
Uncorrected measurement data.
Device name |
OceanPack pCO2 Analyzer |
|---|---|
Parameters |
xCO2 (air) [ppm]; xCO2 corrected (water) [ppm]; CO2 concentration[mmol/m3]; pressure difference (membrane; licor) [mbar]; xH2O (air) [ppt]; H2O concentration [mmol/m3]; xCO2 dry [µmol/mol] |
Data archiving on land
After the cruise the (uncorrected) DShip data set can be extracted from https://dms.awi.de
.
Data must be corrected before final use. Corrected data can only be obtained after on land processing.
.Data must be corrected before final use. Corrected data can only be obtained after on land processing.
File format(s) |
stored in DShip system |
|---|---|
Calibration certificates |
NO |