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Spontaneous Rayleigh-Brillouin scattering of ultraviolet light in nitrogen, dry air, and moist air

Witschas, Benjamin and Vieitez, Maria Ofelia and van Duijn, Eric-Jan and Reitebuch, Oliver and van de Water, Willem and Ubachs, Wim (2010) Spontaneous Rayleigh-Brillouin scattering of ultraviolet light in nitrogen, dry air, and moist air. Applied optics, 49 (22), pp. 4217-4227. Optical Society of America.

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Official URL: http://www.opticsinfobase.org/abstract.cfm?URI=ao-49-22-4217

Abstract

Atmospheric lidar techniques for the measurement of wind, temperature, and optical properties of aerosols rely on the exact knowledge of the spectral line shape of the scattered laser light on molecules. We report on spontaneous Rayleigh–Brillouin scattering measurements in the ultraviolet at a scattering angle of 90° on N2 and on dry and moist air. The measured line shapes are compared to the Tenti S6 model, which is shown to describe the scattering line shapes in air at atmospheric pressures with small but significant deviations.We demonstrate that the line profiles of N2 and air under equal pressure and temperature conditions differ significantly, and that this difference can be described by the S6 model. Moreover, we show that even a high water vapor content in air up to a volume fraction of 3:6 vol:% has no influence on the line shape of the scattered light. The results are of relevance for the future spaceborne lidars on ADM-Aeolus (Atmospheric Dynamics Mission) and EarthCARE (Earth Clouds, Aerosols, and Radiation Explorer).

Item URL in elib:https://elib.dlr.de/64895/
Document Type:Article
Title:Spontaneous Rayleigh-Brillouin scattering of ultraviolet light in nitrogen, dry air, and moist air
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Witschas, BenjaminBenjamin.Witschas (at) dlr.deUNSPECIFIED
Vieitez, Maria OfeliaVrije Univ. Amsterdam, NLUNSPECIFIED
van Duijn, Eric-JanVrije Univ. Amsterdam, NLUNSPECIFIED
Reitebuch, OliverOliver.Reitebuch (at) dlr.deUNSPECIFIED
van de Water, WillemUniv. of Technology Eindhoven, NLUNSPECIFIED
Ubachs, WimVrije Univ. Amsterdam, NLUNSPECIFIED
Date:27 July 2010
Journal or Publication Title:Applied optics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:49
Page Range:pp. 4217-4227
Publisher:Optical Society of America
Status:Published
Keywords:ADM-Aeolus, Rayleigh-Brillouin scattering, LIDAR, spectroscopy, Tenti model
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: Witschas, Dr. Benjamin
Deposited On:04 Aug 2010 15:48
Last Modified:06 Sep 2019 15:22

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