Evaluation of the relaxed eddy accumulation coefficient at various wetland ecosystems

► We present the results of REA coefficients at various wetland ecosystems. ► We conclude the better relationship in predicting REA coefficients. ► The relative minimal variability of the b was found when the wind deadband was 0.8. ► We examine the independence of REA coefficients on variations of surface roughness. ► Diurnal patterns of scalar correlations between CO2, H2O and Ta were presented.