Comparison of the wind data measured on a tall met mast with common long term reference data

]Site: North Germany

Results:

• The on average decreasing wind speed level observed in met station data and production indices during the investigated period is confirmed by the met mast.
• The reanalysis data do not show the same pattern.
• The long term course of wind speed is similar in all measurement heights.
• The measured data correlate best with met station data in low heights and with reanalysisd data in high levels. However, the magnitude of the correlation does not provide a means for evaluating the agreement of the long term average course in the time series.