Journal ArticleDOI
The Airborne Demonstrator for the Direct-Detection Doppler Wind Lidar ALADIN on ADM-Aeolus. Part I: Instrument Design and Comparison to Satellite Instrument
Oliver Reitebuch,Christian Lemmerz,Engelbert Nagel,Ulrike Paffrath,Yannig Durand,Martin Endemann,Frederic Fabre,Marc Chaloupy +7 more
TLDR
In this article, the European Space Agency (ESA) decided to implement a Doppler wind lidar mission called the Atmospheric Dynamics Mission Aeolus (ADM-Aeolus) to demonstrate the potential of the doppler lidar technology and the expected impact on numerical weather forecasting.Abstract:
The global observation of profiles of the atmospheric wind speed is the highest-priority unmet need for global numerical weather prediction. Satellite Doppler lidar is the most promising candidate to meet the requirements on global wind profile observations with high vertical resolution, precision, and accuracy. The European Space Agency (ESA) decided to implement a Doppler wind lidar mission called the Atmospheric Dynamics Mission Aeolus (ADM-Aeolus) to demonstrate the potential of the Doppler lidar technology and the expected impact on numerical weather forecasting. An airborne prototype of the instrument on ADM-Aeolus was developed to validate the instrument concept and retrieval algorithms with realistic atmospheric observations before the satellite launch. It is the first airborne direct-detection Doppler lidar for atmospheric observations, and it is operating at an ultraviolet wavelength of 355 nm. The optical design is described in detail, including the single-frequency pulsed laser and th...read more
Citations
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Journal ArticleDOI
Remote sensing of plant-water relations: An overview and future perspectives
Alexander Damm,Alexander Damm,Eugénie Paul-Limoges,Erfan Haghighi,Clemens Simmer,Felix Morsdorf,Fabian D. Schneider,C. van der Tol,Mirco Migliavacca,Uwe Rascher +9 more
TL;DR: It is hypothesized that an appropriate cross-scale monitoring of plant-water relations can be achieved by combined observational and modelling approaches, and it is concluded that future research should focus on strategies combining observations and mechanistic modelling to advance knowledge on the interplay between the plant- water system and environmental change.
Journal ArticleDOI
First validation of Aeolus wind observations by airborne Doppler wind lidar measurements
Benjamin Witschas,Christian Lemmerz,Alexander Geiß,Oliver Lux,Uwe Marksteiner,Stephan Rahm,Oliver Reitebuch,Fabian Weiler +7 more
TL;DR: In this article, the first ever wind lidar in space developed by the European Space Agency (ESA) has been providing profiles of the component of the wind vector along the instrument's line of sight (LOS) on a global scale.
Journal ArticleDOI
Daytime measurements of atmospheric temperature profiles (2-15 km) by lidar utilizing Rayleigh-Brillouin scattering.
TL;DR: A novel method for measuring atmospheric temperature profiles by lidar during daytime for heights of 2-15.3 km, with a vertical resolution of 0.3-2.2 km, using Rayleigh-Brillouin scattering, assuming standard atmospheric pressure conditions.
Journal ArticleDOI
Spontaneous Rayleigh-Brillouin scattering of ultraviolet light in nitrogen, dry air, and moist air.
Benjamin Witschas,Maria Ofelia Vieitez,Eric-Jan van Duijn,Oliver Reitebuch,Willem van de Water,Wim Ubachs +5 more
TL;DR: It is demonstrated that the line profiles of N(2) and air under equal pressure and temperature conditions differ significantly, and that this difference can be described by the S6 model, which is shown to describe the scattering line shapes in air at atmospheric pressures with small but significant deviations.
Journal ArticleDOI
Mid-altitude wind measurements with mobile Rayleigh Doppler lidar incorporating system-level optical frequency control method
Haiyun Xia,Xiankang Dou,Dongsong Sun,Zhifeng Shu,Xianghui Xue,Yan Han,Hu Dongdong,Yuli Han,Tingdi Cheng +8 more
TL;DR: For the first time, quasi-zero wind layer and dynamic evolution of high-altitude tropospheric jet are observed based on Rayleigh Doppler lidar in Asia.
References
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Journal ArticleDOI
On the Kinetic Model Description of Rayleigh–Brillouin Scattering from Molecular Gases
TL;DR: In this article, the behavior of a model kinetic equation used for describing the density fluctuation spectrum in molecular gases was analyzed in detail in the kinetic regime, in the case of molecular gases.
Journal ArticleDOI
The atmospheric dynamics mission for global wind field measurement
Ad Stoffelen,Jean Pailleux,Erland Källén,J. Michael Vaughan,Lars Isaksen,Pierre H. Flamant,Werner Wergen,Erik Andersson,Harald Schyberg,Alain Culoma,Roland Meynart,Martin Endemann,Paul Ingmann +12 more
TL;DR: The Atmospheric Dynamics Mission (ADM) as discussed by the authors demonstrated measurements of vertical wind profiles from space using a high-performance Doppler wind lidar based on direct-detection interferometric techniques.
Journal ArticleDOI
A Doppler lidar for measuring winds in the middle atmosphere
TL;DR: In this paper, a Doppler Lidar is used to measure the wave-mean flow interaction in the middle atmosphere using Rayleigh scattering from air molecules, which is designed to cover the height range 25-60 km, where radars cannot operate.
Journal ArticleDOI
The airborne multi-wavelength water vapor differential absorption lidar WALES: system design and performance
TL;DR: In this article, a high-performance airborne water vapor differential absorption lidar has been developed during the past years, which uses a four-wavelength/three-absorption line measurement scheme in the 935 nm H2O absorption band to cover the whole troposphere and lower stratosphere simultaneously.
Journal ArticleDOI
Edge technique: theory and application to the lidar measurement of atmospheric wind.
TL;DR: The frequency shift measurement insensitive to both laser and filter frequency jitter and drift is shown to be insensitive to the laser width and shape for widths that are less than the half-width of the edge filter.
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