Near-surface biosphere/atmosphere exchange is observed at permanent monitoring stations with both stationary and mobile outdoor facilities, such as leaf cuvettes, surface flux chambers and tents, automated trace gases flux measuring systems in aluminium boxes and trucks, flux towers, tunable diode laser (TDL) and path-averaging (FTIR, DOAS) systems.
Available instrumentation
- In-situ trace gas concentrations (CO2, CH4, N2O)
- In-situ trace gas concentrations (NO/NO2, O3, PM10, CO) (until 2012)
- In-situ meteorological parameters (wind, temperature, humidity, radiation)
- Leaf gas exchange with cuvettes
- Trace gas surface fluxes with dynamic and static chambers (order of 1 m2)
- Trace gas surface fluxes with tents (order of 100 m2)
- Tunable diode laser spectroscopy (TDLAS) for N2O and CO2
- Vertical turbulent fluxes of trace gases (CO2, N2O) and latent/sensible heat with the eddy covariance technique
- Path-integrated concentrations of trace gases (DOAS, FTIR)
- Scanning-imaging FTIR system (SIGIS)
- diffuse emission fluxes with inverse methods (downwind concentration measurements
plus inverse (backward) dispersion modelling)
