ERRORS IN EDDY-CORRELATION MEASUREMENTS OF MOMENTUM FLUXES AND THEIR CORRECTION

The article discusses the corrections needed for eddy correlation measurements of momentum fluxes in the atmospheric boundary layer to encourage a thoughtful use of other people's data. The research rose from a question posed in the HEXOS program. After identifying the corrections they are successively treated, with the main emphasis on the consequences of flow distortion. It turns out that for moderate to low distortion all corrections but one can be made to an acceptable accuracy. The remaining correction can by accident be neglected for the specific data used in this paper. Some general advice is given to judge the importance of flow distortion effects in a given situation.