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Lidar measurements of atmospheric temperature profiles (2-15 km) by utilizing Rayleigh-Brillouin scattering

Witschas, Benjamin and Lemmerz, Christian and Reitebuch, Oliver (2013) Lidar measurements of atmospheric temperature profiles (2-15 km) by utilizing Rayleigh-Brillouin scattering. SPIE Remote Sensing, 23.-26. Sept. 2013, Dresden, Germany.

Full text not available from this repository.

Abstract

In this paper, we report on a novel method for measurements of atmospheric temperature profiles during daytime from 2 km up to 15.3 km with a vertical resolution between 0.3 km to 2.2 km by lidar (light detection and ranging) using Rayleigh-Brillouin scattering. The spectra of Rayleigh-Brillouin scattered light are measured by scanning a laser (λ = 355 nm) over a 12 GHz range and using a single Fabry-Perot interferometer as frequency discriminator. Temperature is derived by analyzing the measured Rayleigh-Brillouin spectra with an analytical line shape model and assuming standard-atmospherical pressure conditions. Two exemplary temperature profiles resulting from measurements over 14 min and 27 min are shown. A comparison to radiosonde temperature measurements show reasonable agreement. The temperature difference reaches up to 5 K within the boundary layer and is smaller than 2.5 K above. The statistical error is calculated with a maximum likelihood estimator and varies between 0.15 K and 1.5 K.

Item URL in elib:https://elib.dlr.de/85674/
Document Type:Conference or Workshop Item (Speech)
Title:Lidar measurements of atmospheric temperature profiles (2-15 km) by utilizing Rayleigh-Brillouin scattering
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Witschas, BenjaminDeutsches Zentrum für Luft- und Raumfahrt - Institut für Physik der AtmosphäreUNSPECIFIED
Lemmerz, ChristianDeutsches Zentrum für Luft- und Raumfahrt - Institut für Physik der AtmosphäreUNSPECIFIED
Reitebuch, OliverDeutsches Zentrum für Luft- und Raumfahrt - Institut für Physik der AtmosphäreUNSPECIFIED
Date:24 September 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Rayleigh-Brillouin scattering, molecular scattering, temperature Lidar, High spectral resolution Lidar
Event Title:SPIE Remote Sensing
Event Location:Dresden, Germany
Event Type:international Conference
Event Dates:23.-26. Sept. 2013
Organizer:SPIE
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 III (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Witschas, Dr. Benjamin
Deposited On:27 Nov 2013 10:04
Last Modified:08 May 2014 23:30

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