Bremen 2017 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 5: Postersession

UP 5.12: Poster

Dienstag, 14. März 2017, 16:40–18:10, GW2 B3010

Development of the Scanning Mobile ATMONSYS Lidar for water Vapor, Aerosol and Temperature — •Hannes Vogelmann, Thomas Trickl, Matthias Perfahl, and Stefan Biggel — KIT IMK-IFU, Garmisch-Partenkirchen, Germany

Water vapor is the most important greenhouse gas and dominates weather patterns, the atmospheric energy budget and atmospheric dynamics. For analysing dynamic processes of the planetary boundary layer we developed a scanning lidar for measuring water vapor, aerosols and temperature. In order to obtain 3-dimensional information it is equipped with a scanner covering the entire hemisphere above the system. Water vapor is measured with the differential absorption method (DIAL), aerosol with simple backscatter from different wavelengths and temperature with the rotational Raman-backscatter of air-molecules. We present the design of the three-stage laser-system including a diode-pumped Nd:YAG-Laser, a single mode two-wavelengths Ti:Sapphire oscillator and a regenerative Ti:Sapphire amplifier. We also give insight into the design of the lidar receiver with separate telescopes for near and far field, the scanning optics, the structure of the polychromators and the data aquistion. Additionally we report from our first field campaign (ScaleX) with the new system in summer 2016 in Peißenberg.