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As a summary, the steps of the calibration and the data processing are as follows:

1. determination of the lag times

2. synchronization of the computers

3. calculation of the calibration functions

4. averaging time determination

5. conversion of voltage signal into physical quantities

6. wind vector rotation

7. trend removal

8. data screening

9. calculation of covariances

10. conversion into physical fluxes

11. instationarity test

12. spectral corrections

This is a routine method which is suggested to be used by other investigators who conduct long term, tower based eddy covariance measurements with similar instrumentation.

root 2001-06-16