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The Airborne Demonstrator for the Direct-Detection Doppler Wind Lidar ALADIN on ADM-Aeolus: II. Simulations and Rayleigh Receiver Radiometric Performance

Paffrath, U. and Lemmerz, Ch. and Reitebuch, O. and Witschas, B. and Nilolaus, I. and Freudenthaler, V. (2009) The Airborne Demonstrator for the Direct-Detection Doppler Wind Lidar ALADIN on ADM-Aeolus: II. Simulations and Rayleigh Receiver Radiometric Performance. Journal of Atmospheric and Oceanic Technology, 26, pp. 2516-2530. DOI: 10.1175/2009JTECHA1314.1.

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Official URL: http://ams.allenpress.com/perlserv/?request=get-archive&issn=1520-0426

Abstract

In the frame of the Atmospheric Dynamics Mission Aeolus (ADM-Aeolus) satellite mission by the European Space Agency (ESA), a prototype of a direct-detection Doppler wind lidar was developed to measure wind from ground and aircraft at 355 nm. Wind is measured from aerosol backscatter signal with a Fizeau interferometer and from molecular backscatter signal with a Fabry–Perot interferometer. The aim of this study is to validate the satellite instrument before launch, improve the retrieval algorithms, and consolidate the expected performance. The detected backscatter signal intensities determine the instrument wind measurement performance among other factors, such as accuracy of the calibration and stability of the optical alignment. Results of measurements and simulations for a ground-based instrument are compared, analyzed, and discussed. The simulated atmospheric aerosol models were validated by use of an additional backscatter lidar. The measured Rayleigh backscatter signals of the wind lidar prototype up to an altitude of 17 km are compared to simulations and show a good agreement by a factor better than 2, including the analyses of different error sources. First analyses of the signal at the Mie receiver from high cirrus clouds are presented. In addition, the simulations of the Rayleigh signal intensities of the Atmospheric Laser Doppler Instrument (ALADIN) Airborne Demonstrator (A2D) instrument on ground and aircraft were compared to simulations of the satellite system. The satellite signal intensities above 11.5 km are larger than those from the A2D ground-based instrument and always smaller than those from the aircraft for all altitudes.

Document Type:Article
Title:The Airborne Demonstrator for the Direct-Detection Doppler Wind Lidar ALADIN on ADM-Aeolus: II. Simulations and Rayleigh Receiver Radiometric Performance
Authors:
AuthorsInstitution or Email of Authors
Paffrath, U.UNSPECIFIED
Lemmerz, Ch.UNSPECIFIED
Reitebuch, O.UNSPECIFIED
Witschas, B.UNSPECIFIED
Nilolaus, I.Physics Solutions
Freudenthaler, V.Univ. Munich
Date:December 2009
Journal or Publication Title:Journal of Atmospheric and Oceanic Technology
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:26
DOI:10.1175/2009JTECHA1314.1
Page Range:pp. 2516-2530
Status:Published
Keywords:ADM-Aeolus; Doppler Wind Lidar, ALADIN airborne Demonstrator
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Projekt ADM II (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Oliver Reitebuch
Deposited On:03 Dec 2009 15:32
Last Modified:12 Dec 2013 20:46

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