Doppler Lidar Measurements at DLR

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Presentation transcript:

Doppler Lidar Measurements at DLR Coherent 2 mm Doppler Lidar Measurements at DLR S. Rahm R. Simmet, I. Smalikho, M. Wirth Institut für Physik der Atmosphäre, DLR Airborne Wind Profile Measurements 2001 Ground Based Wake Vortex Measurements Tarbes (France) 2002 Airborne Wind Profile Measurements during Vertikator Campaign 2002 Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 2 mm Lidar System Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Airborne Konfiguration Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 2 mm Lidar System Installed in Falcon Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Mediteranean Sea 18/07/2002 Alpine Area Windprofile at 7° 6` E; 44° 42` N 40 km SW of Turin Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Mediteranean Sea 18/07/2002; Boundary Layer at Sardinia Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Comparison Dropsonde <-> Lidar Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Adria 18/07/2002 Windprofile at Vicenza (near Verona) Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Adria 18/07/2002 Windprofile at Vicenza (near Verona) Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Strategy of lidar measurements at Tarbes airport Quinetic + Onera 10 mm cw DLR 2 mm pulsed Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Wake vortex measurement at Tarbes airport. Quicklook sequence of 91 minutes 400 800 1200 100 200 300 500 Range Altitude Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Wake vortex measurement at Tarbes airport. Quicklook sequence of 91 minutes 400 800 1200 100 200 300 500 Range Altitude Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Spectra at wake vortex measurements 1 range gate 2 3 Velocity [m/s] Lidar Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 WakeTarbes 2002: Signatures of A340 wake vortices config. 1, 56 s after OF at 338 m altitude Z [m] 100 200 starboard vortex velocity [m/s] 13 5 10 400 600 X [m] 100 200 300 1200 800 1000 Z [m] pos. envelope [m/s] neg. envelope [m/s] 400 100 200 300 1200 600 800 1000 Z [m] X [m] -2 -12 -8 -4 Z [m] 100 200 -10 10 velocity [m/s] port vortex Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Results of a VLTA - wake vortex measurement: trajektory, zirkulation, core separation and tilt Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003

Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003 Conclusion Wind profiles obtained airborne from 5000 m altitude down to ground. Wake vortices can be detected and characterised in the boundary layer. Higher energy would be welcome e.g. 10 mJ !?! Working Group on Space-Based Lidar Winds; Oxnard Feb. 2003