Our system that records pCO2 in the chamber every 15 sec.
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We use different designs of chambers, depending on the environments we are working on and the technique we use to analyse gas
concentrations. Chambers are designed taller in estuaries than in lakes. The wall of the chambers extend few centimeters
into the water. Gas concentrations are measured
either on samples taken at regular intervals or continuously with a gas analyser. Measurements are
always performed while drifting to avoid the creation of artificial turbulence and enhance the gas flux.
Deployments may vary from 5 min to 1 hour.
An example of the time course of pCO2 in the chamber for four replicate fluxes.
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