Interactive comment on “Lidar arc scan uncertainty reduction through scanning geometry optimization” by H. Wang et al
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چکیده
This paper concerns estimation of the uncertainty of the mean wind speed when estimated from a Doppler lidar arc scan, i.e. a certain fraction of a normal conical scan. The subject is timely, as more and more scanning Doppler lidars are used, especially in the wind energy industry. The authors has got accepted a similar paper in Journal of Oceanic and Atmospheric Technology (Wind Measurements from Arc Scans With Doppler Wind Lidar by Wang, Barthelmie, Clifton and Pryor), and although there is some overlap, the present paper contains a series of new experiments and an emphasis on the implication for annual energy production (AEP) estimation of wind turbines. The papers shows how wind direction relative to the direction of the arc is quite important for the uncertainty, and also that, in general, a wider arc gives lower uncertainty.
منابع مشابه
Lidar arc scan uncertainty reduction through scanning geometry optimization
Doppler lidars are frequently operated in a mode referred to as arc scans, wherein the lidar beam scans across a sector with a fixed elevation angle and the resulting measurements are used to derive an estimate of the nminute horizontal mean wind velocity (speed and direction). Previous studies have shown that the uncertainty in the measured wind speed originates from turbulent wind fluctuation...
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