VARIABLE;METH_DESCR AirFlux_CO2_3.8m_Avg30min;CO2 FLUX in micromol CO2 per m-2 per second measured on an Eddy flux tower 3.8 m above ground, as an average of 30 minutes AirFlux_CH4_4m_Avg30min;CH4 FLUX in micro mol CO2 per m-2 per second measured on an Eddy flux tower 4 m above ground, as an average of 30 minutes