elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Rayleigh‐Brillouin scattering in the atmosphere and in the lab

Witschas, Benjamin (2011) Rayleigh‐Brillouin scattering in the atmosphere and in the lab. Abbe school of photonics at the Friedrich-Schiller-University Jena, Jena.

Dieses Archiv kann nicht den gesamten Text zur Verfügung stellen.

Kurzfassung

The global observation of atmospheric wind profiles remains to be the highest priority need for weather forecast. Therefore, the European Space Agency ESA decided to implement the Atmospheric Dynamics Mission ADM-Aeolus to demonstrate the potential of the Doppler lidar technology for global wind profiling. Thereby, the laser of the Doppler lidar sends short pulses into the atmosphere where they are scattered by aerosols and molecules. Some of the backscattered light is collected by a telescope and analyzed concerning its frequency. The frequency shift between emitted and received light, caused by the Doppler shift of moving particles, is directly proportional to the atmospheric wind speed. The accuracy of this measurement technique is significantly depending on the knowledge of the spectral distribution of the backscattered light. For the validation and the improvement of spectral line shape models of Rayleigh-Brillouin scattered light, laboratory measurements at the university of Amsterdam as well as atmospheric measurements from Germany highest mountain – the Zugspitze were performed. In my talk I will introduce the Doppler lidar principle and demonstrate the urgent need of accurate line shape description of the scattered light. The results of laboratory and atmospheric measurements are introduced and discussed.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Rayleigh‐Brillouin scattering in the atmosphere and in the lab
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Witschas, BenjaminBenjamin.Witschas@dlr.de
Datum:13 Mai 2011
Referierte Publikation:Ja
In ISI Web of Science:Nein
Stichwörter:Rayleigh-Brillouin scattering, ADM-Aeoulus, Doppler-Wind-Lidar
Veranstaltungstitel:Abbe school of photonics at the Friedrich-Schiller-University Jena
Veranstaltungsort:Jena
Veranstaltungsart:Workshop
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben ADM (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Lidar
Hinterlegt von: Dr. Benjamin Witschas
Hinterlegt am:13 Feb 2012 14:30
Letzte Änderung:13 Feb 2012 14:30

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.