pvm
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pvm [2020/08/31 22:17] – [Data availability] bpospich | pvm [2020/08/31 22:32] – [Measurement examples] bpospich | ||
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===== Link to current observations ===== | ===== Link to current observations ===== | ||
- | Current observations at [[http:// | + | Current observations at [[http:// |
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===== Measurement examples ===== | ===== Measurement examples ===== | ||
- | [[http:// | ||
- | Current VAD plot:\\ | ||
- | {{http:// | ||
- | //The figure shows a velocity azimuth display | + | {{wiki: |
- | Color shading gives the backscatter coefficient. | + | {{wiki: |
- | // | + | //Example time series of PVM observations |
- | + | ===== PVM History ===== | |
- | ===== Doppler lidar History ===== | + | ^ Period |
- | ^ Period | + | | 5. October 2016 - 02.01.2017 |
- | | 12.9.2012 | + | | 03.01.2017 - 10.06.2020 | | | | not installed (roof renovations) |
- | | 26.7.2012 - 31.8.2012 | [[https:// | + | | 10.06.2020 - today | 30°, southward |
- | | 7.11.2011 - 26.7.2012 | + | |
===== Technical specifications ===== | ===== Technical specifications ===== | ||
- | ^ Parameter | + | ^ Parameter |
- | | Wavelength / nm | + | | STC power |
- | | Pulse energy / $\mu$J | + | | Current |
- | | Pulse width / ns (m) | 150 (22.5) | + | | Voltage |
- | | Repetition Rates / s | + | | Short circuit current |
- | | | 1.67 | avg.beam i.e. N_avg pulses averaged and processed => dead time=0.67s | + | | Open circuit voltage |
- | | | 300 | Doppler Beam swing (DBS) with 3 beams ([azi,ele] = [0, | + | | System voltage |
- | | | 900 | Velocity azimuth display (VAD) with 36 beams ([azi,ele] = [i*10, | + | | Dimensions |
- | | | 3600 | vertical slice (RHI) with 18 beams ([azi,ele] = [109,i*10]) | | + | | Weight |
- | | N_avg | 15000 | number of pulses to be averaged in one ' | + | |
- | | 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 crystals) | + | |
- | | velocity resolution / ms< | + | |
- | | velocity precsision / ms< | + | |
- | | max velocity / ms< | + | |
- | | Aperture / mm (area / | + | |
- | | Size / cm³ | + | |
- | | Average Power consumption / W | 140/250 [600] | (wo/w Heating/ | + | |
- | | Weight | + | |
- | | Manufacturer | + | |
- | | Year | 2011 | | | + | |
- | | Instrument | + | |
- | + | ||
pvm.txt · Last modified: 2021/03/01 11:18 by bpospich