Attention:
Please note: The system runs continuously at all cruises. Support is given by the board electricians. Please ask them if you need specific info, or contact the responisple AWI scientist.
Summary
The Model 8050 pCO2 Measuring System is an autonomous analytical system for online measurement of the mixing ratio (partial pressure) of carbon dioxide in oceanic surface water and in the marine atmosphere.
| Manufacturer | General Oceanics |
|---|---|
| Model | Model 8050 pCO2 |
| Serial No. | n/a |
| Type | pCO2 Sensor |
| SENSOR-Link | ↪ |
Contacts
| Name | Institution | Role |
|---|---|---|
| Mario Hoppema | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research | Data Scientist |
| Alfred Wegener Institute for Polar and Marine Research | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research | Owner |
| Hauke Becker | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research | Engineer In Charge |
Components
The system consists of a wet box and a dry box. In the wet box, surface seawater is brought into equilibrium with air, which is measured for its CO2 content in the dry box. CO2 determination is peformed with a Li-cor Infra Red (IR) analyser.
Position
| Info | no xyz-position given, device located in G707 |
Data logging, storage and archiving
Logged parameters
| Parameter | Sensor Output Type | Unit |
|---|---|---|
| preliminary pCO2 | pCO2 | μatm |
| Type | index | unknown |
Central geographical ship's position and time standard
Time synchronising is regulated by hand by comparing ship's time with computer's time.
Geographical ship's position via ship's system.
Geographical ship's position via ship's system.
Rawdata storage on board
Data is stored on the computer of the GO system and in DShip system.
Dship
Preliminary, uncorrected measurement data. Reporting of a preliminary pCO2 (based on xco2, equtemp in licorpres) was implemented in May 2015, for reporting to DSHIP and on to AWI. Please note that these data are NOT the final product of this instrument. After-cruise processing of the data improves the values significantly compared to the preliminary value.
Device name |
GO pCO2 Analyzer |
|---|---|
Parameters |
DateTime; fCO2 [µmol/mol]; Type |
Data archiving on land
After the cruise the uncorrected DShip data set can be extracted from https://dship.awi.de/
.
The data need processing for correcting the raw data to useful and high-quality pCO2 data. Final data are stored in SOCAT (https://www.socat.info), where further quality control is done. Also available in https://www.pangaea.de/ (for authorized users only).
.The data need processing for correcting the raw data to useful and high-quality pCO2 data. Final data are stored in SOCAT (https://www.socat.info
), where further quality control is done. Also available in https://www.pangaea.de/ (for authorized users only).File format(s) |
stored in DShip system |
|---|---|
Calibration certificates |
NO |