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Proceedings Paper

Airborne direct-detection and coherent wind lidar measurements along the east coast of Greenland in 2009 supporting ESA's Aeolus mission
Author(s): Uwe Marksteiner; Oliver Reitebuch; Stephan Rahm; Ines Nikolaus; Christian Lemmerz; Benjamin Witschas
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Paper Abstract

The Aeolus mission of the European Space Agency (ESA) will send the first wind lidar to space to fulfill the utmost need for global wind profile observations. Before the scheduled launch in late 2013, pre-launch campaigns have to be performed to validate the measurement principle and to optimize retrieval algorithms. Therefore, an airborne prototype instrument has been developed, the ALADIN Airborne Demonstrator (A2D). In September 2009 an airborne campaign over Greenland, Iceland and the Atlantic Ocean was conducted using two instruments: the A2D and a well established coherent 2-μm lidar for aerosol and cloud backscatter. Thus, two wind lidar instruments measuring Mie and Rayleigh backscatter in parallel were operated on the same aircraft. This paper describes the analysis of wind measurement data gathered during a flight segment on 26.09.2009. A dedicated aerial interpolation algorithm is introduced taking into account the different resolution grids of the two lidar systems. Via a statistical comparison of line of sight (LOS) winds the systematic and random error of the direct-detection wind lidar A2D was assessed, yielding -0.7 m/s and 1.9 m/s for the Rayleigh and 1.1 m/s and 1.3 m/s for the Mie channel, respectively.

Paper Details

Date Published: 30 September 2011
PDF: 8 pages
Proc. SPIE 8182, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VII, 81820J (30 September 2011); doi: 10.1117/12.897528
Show Author Affiliations
Uwe Marksteiner, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Oliver Reitebuch, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Stephan Rahm, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Ines Nikolaus, Physics Solutions (Germany)
Christian Lemmerz, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Benjamin Witschas, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)


Published in SPIE Proceedings Vol. 8182:
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VII
Upendra N. Singh; Gelsomina Pappalardo, Editor(s)

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