Shoot chambers
Stem chambers
Soil chambers (ICOS)
Soil chambers (Siikaneva 1)
![http://www.atm.helsinki.fi/pics/cuvette/cuvette_ref_h2o.png](http://www.atm.helsinki.fi/pics/cuvette/cuvette_ref_h2o.png)
Chamber and supply air H2O concentrations vs H2O calculated from sample line dew point measurement during last 7 days
![http://www.atm.helsinki.fi/pics/cuvette/cuvette_mast_co2.png](http://www.atm.helsinki.fi/pics/cuvette/cuvette_mast_co2.png)
Initial dry CO2 concentrations in shoot chambers vs mast CO2 at 16.8 m during last 7 days
![http://www.atm.helsinki.fi/pics/cuvette/cuvette_ref_regrparamsh.png](http://www.atm.helsinki.fi/pics/cuvette/cuvette_ref_regrparamsh.png)
![http://www.atm.helsinki.fi/pics/cuvette/cuvette_mast_regrparamsc.png](http://www.atm.helsinki.fi/pics/cuvette/cuvette_mast_regrparamsc.png)
Chamber vs dew point H2O and chamber vs mast CO2 regression parameters (circles),
calibration dates are shown with vertical lines