Other EC sites:

KuivajärviSiikaneva ISMEAR II subcanopy SMEAR II 27.0m


SMEAR I (Värriö) EC measurements at 17 m

This website contains plots of data from SMEAR I (Värriö) EC system at 17 m height.
The figures are intended for detecting instrument's failure and they are updated daily. Data are not quality checked.

Choose figure category:
FluxesMeansLag timesLI-7200 diagnosticsSpikes  Flow distortion  Spectra/CospectraSpectral attenuationMeteorological/auxiliary data


Flow distortion.

Figure 1: The second coordinate rotation angle (upper plot) and std(w)/u* (lower plot) vs wind direction. According to Rannik (1998) std(w)/u* should be approx. 1.3 in a neutral stratification.