Measuring H2O and CO2 fluxes at field scales with scintillometry: Part I - Introduction and validation of four methods

► New method of combined scintillometer and scalar measurements for H2O and CO2 fluxes. ► The combined methods reproduce H2O and CO2 fluxes well. ► The energy balance does not close, because storage terms are neglected. ► Structure parameters are less sensitive to signal non-stationarity than variances.