eddy covariance systems consist sonic anemometer scientific tower station research gas analyzer wind carbon dioxide gas

tower eddy covariance systems consist station weather meteorological meteorology sonic anemometer scientific research gas analyzer wind relevant fluctuations frequency floodplain forests plant measurements using technique monitoring technology tree technocal wood global change ecology ecosystematmosphere greenhouse exchange carbon dioxide water methane nitrous oxide co2 h2o ch4 n2o measurement heat czech europe