instruments:wind_lidar
Differences
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instruments:wind_lidar [2014/11/26 17:33] – [Specifications] jan | instruments:wind_lidar [2021/10/01 21:32] (current) – [Doppler Lidar] jan | ||
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- | ====== | + | ====== |
- | //Mentor: [[http:// | + | |
+ | //Mentor: [[http:// | ||
+ | The instrument is a [[https:// | ||
===== Principle ===== | ===== Principle ===== | ||
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===== Data ===== | ===== Data ===== | ||
- | * If you are interested in receiving data please contact the instrument mentor [[http:// | + | * If you are interested in receiving data please contact the instrument mentor [[http:// |
- | * Recent plots can be found in the [[http://gop.meteo.uni-koeln.de/ | + | * Recent plots can be found in the [[http://atmos.meteo.uni-koeln.de/ |
Current VAD plot:\\ | Current VAD plot:\\ | ||
- | [[http://gop.meteo.uni-koeln.de/ | + | [[http://atmos.meteo.uni-koeln.de/ |
- | 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. | The figure shows a velocity azimuth display (VAD): vectors give direction and speed of horizontal wind at time and height. | ||
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^ Period | ^ Period | ||
| 12.9.2012 - | | 12.9.2012 - | ||
- | | 26.7.2012 - 31.8.2012 | [[https:// | + | | 26.7.2012 - 31.8.2012 | [[https:// |
- | | 7.11.2009 - 26.7.2012 | [[http:// | + | | 7.11.2011 - 26.7.2012 | [[http:// |
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^ Parameter | ^ Parameter | ||
- | | Wavelength / nm | 150nm | + | | Wavelength / nm | 1500nm |
- | | Repetition | + | | Pulse energy / $\mu$J |
+ | | Pulse width / ns (m) | 150 (22.5) | ||
+ | | Repetition | ||
+ | | | 1.67 | ||
+ | | | 300 | Doppler Beam swing (DBS) with 3 beams ([azi,ele] = [0, | ||
+ | | | 900 | Velocity azimuth display (VAD) with 36 beams ([azi,ele] = [i*10, | ||
+ | | | 3600 | vertical slice (RHI) with 18 beams ([azi,ele] = [109,i*10]) | | ||
+ | | N_avg | 15000 | number of pulses to be averaged in one ' | ||
| resolution / m | 30 | range resolution (adjustable from 15m onward) | | resolution / m | 30 | range resolution (adjustable from 15m onward) | ||
| Field-of-View / deg | 360 x 90 | free alingment of the beam | | | Field-of-View / deg | 360 x 90 | free alingment of the beam | | ||
- | | maximum range / m | 9000 | adjustable | + | | maximum range / m | 9000 | adjustable, but restriced to sufficent backscatter (aerosol, cloud droplets or ice crystals) |
- | | velocity resolution / m/s | 0.0382 | + | | velocity resolution / ms$^{-1}$ |
- | | max velocity / m/s | 19 | adjustable | + | | velocity precsision / ms$^{-1}$ |
- | | Size / cm³ | ~ 150 x 60 x 70 | + | | max velocity / ms$^{-1}$ |
+ | | Aperture / mm (area / | ||
+ | | Size / cm³ | 80 x 53 x 40 | ||
| Average Power consumption / W | 140/250 [600] | (wo/w Heating/ | | Average Power consumption / W | 140/250 [600] | (wo/w Heating/ | ||
| Weight / kg | 110 | with transport case | | | Weight / kg | 110 | with transport case | | ||
| Manufacturer | | Manufacturer | ||
- | | Instrument | + | | Year | 2011 | | |
+ | | Instrument | ||
- | Current setup: | ||
- | * doppler beam swing (DBS) with 3 beams ([azi,ele] = [0, | ||
- | * velocity azimuth display scan (VAD) ([azi,ele]i = [i*10,75]) every 15minutes | ||
- | * vertical staring during rest of time (dt=1.67sec) | ||
instruments/wind_lidar.1417019601.txt.gz · Last modified: 2016/04/07 19:53 (external edit)