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
The OceanPack Sea-Air-Exchange system measures the partial pressure of CO2 (pCO2) in seawater using membrane equilibration and Li-cor IR analyser for CO2 detection. The instrument reports mole fraction of CO2 in wet air in ppm. Values of pCO2 in microatm can only be obtained with shore-based data processing.
| Manufacturer | subCtech GmbH |
|---|---|
| Model | OceanPack SAE pCO2 Analyzer |
| Serial No. | n/a |
| Type | pCO2 Sensor |
| REGISTRY-Link | ↪ REGISTRY (74) |
Contacts
| Name | Institution | Role |
|---|---|---|
| Mario Hoppema | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research | Principal Investigator, Data Scientist |
| Thomas Liebe | F. Laeisz | Engineer In Charge |
Components
Position
| Info | no xyz-position given, device located in G707 |
| X | 0.0 (no unit given) (no description given) |
| Y | 0.0 (no unit given) (no description given) |
| Z | 0.0 (no unit given) (no description given) |
Data logging, storage and archiving
Logged parameters
| Parameter | O2ARegistry Output Type | Unit |
|---|---|---|
| CO2 air | CO2 | ppm |
| CO2 corrected water | CO2 | ppm |
| H2O air | wet bulk density | ppt |
| H2O density | wet bulk density | μmol/m3 |
| xCO2 dry | CO2 | μmol/mol |
| CO2 density | CO2 | μmol/m3 |
Central geographical ship's position and time standard
Rawdata storage on board
Dship
Data archiving on land
Documentation
-
Factsheet: pCO2 Analyser on R.V. Polarstern (Article)
Factsheet for pCO2 Analyser on board of R.V. Polarstern -
OceanPack RACK MK-2 datasheet (Factsheet, 325 kB)
