Logo des Repositoriums
Zur Startseite
  • English
  • Deutsch
Anmelden
  1. Startseite
  2. SuUB
  3. Dissertationen
  4. The temporal variability of the OH* airglow layer: A study based on Fourier Transform Spectroscopy and mesospheric models
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-00104399-11

The temporal variability of the OH* airglow layer: A study based on Fourier Transform Spectroscopy and mesospheric models

Veröffentlichungsdatum
2015-03-18
Autoren
Kowalewski, Stefan  
Betreuer
Palm, Mathias  
Gutachter
von Savigny, Christian  
Zusammenfassung
This work investigates the mesospheric OH* airglow layer. Ground-based observations of its Meinel emission are performed by means of Fourier Transform Spectroscopy at the AWIPEV station, Spitsbergen. Gas kinetic ambient temperatures are derived from the recorded spectra and compared with other data sets, indicating a rather persistent negative temperature offset to co-located spaceborne observations. Furthermore, temperature/brightness fluctuations serve as a diagnostic tool for wave driven perturbations of the OH* airglow layer due to its adiabatic/chemical response. Evidence of a vertical coupling with the lower atmospheric fraction is found on some occasions, corroborating current theories on the wave-mean-flow-interaction as the important driver of mesospheric dynamics. Finally, this work performed gas kinetic simulations, revealing the importance of the combined effect of the O and O2 quenching on the temporal modulation of vertical shifts between different OH* Meinel bands.
Schlagwörter
mesosphere

; 

airglow

; 

hydroxyl layer

; 

atmospheric waves

; 

mesopause temperatures
Institution
Universität Bremen  
Fachbereich
Fachbereich 01: Physik/Elektrotechnik (FB 01)  
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Englisch
Dateien
Lade...
Vorschaubild
Name

00104399-1.pdf

Size

11.8 MB

Format

Adobe PDF

Checksum

(MD5):e9569246ed736c7bad9a0dff1a0f1bfd

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Datenschutzbestimmungen
  • Endnutzervereinbarung
  • Feedback schicken