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Wind Lidar

Mentor: J.H. Schween


The backscattered light from an emitted laserbeam is used to measure wind speed. Analysis of doppler shift gives wind speed along the beam. Combination of several beams allows an estimate of the three components of the wind vector. Amount of received backscattered light allows calculation of backscatter coefficient.



  • If you are interested in receiving data please contact the instrument mentor J.H. Schween.

Current VAD plot:

Click on figure for further plots.

The figure shows a velocity azimuth display (VAD): vectors give direction and speed of horizontal wind at time and height. Vectors pointing upward indicate south wind, vectors pointing to the right indicate west wind. Color shading gives the backscatter coefficient.


Period Place Project
12.9.2012 - today Research Center Jülich, Germany TR32
26.7.2012 - 31.8.2012 Engelsdorf, Germany TR32-Patvap
7.11.2009 - 26.7.2012 Research Center Jülich, Germany TR32


Parameter Specification Remark
Wavelength / nm 150nm
Repetition Rates / s 1/15000, 1, 300, 900, laser pulses, avg.beam, Doppler Beam swing (DBS), Velocity azimuth display (VAD)
1/15000 laser pulses, avg.beam, Doppler Beam swing (DBS), Velocity azimuth display (VAD)
1/15000 laser pulses
1.67 avg.beam
300 Doppler Beam swing (DBS) with 3 beams ([azi,ele] = [0,90],[0,75],[90,75])
900 Velocity azimuth display (VAD) with 36 beams ([azi,ele] = [i*10,75])
3600 vertical slice (RHI) with 18 beams ([azi,ele] = [109,i*10])
resolution / m 30 range resolution (adjustable from 15m onward)
Field-of-View / deg 360 x 90 free alingment of the beam
maximum range / m 9000 adjustable, but restriced to sufficent backscatter (aerosol, cloud droplets or ice chrystals)
velocity resolution / m/s 0.0382 adjustable
max velocity / m/s 19.2 adjustable
Size / cm³ ~ 150 x 60 x 70 estimated
Average Power consumption / W 140/250 [600] (wo/w Heating/cooling) [The power supply shall provide 600W]
Weight / kg 110 with transport case
Manufacturer Halo Photonics
Instrument streamline V4 Instrument #17
instruments/wind_lidar.1417020019.txt.gz · Last modified: 2016/04/07 19:53 (external edit)