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Journal articles
Global analysis of scintillation variance: Indication of gravity wave breaking in the polar winter upper stratosphere
Viktoria F. Sofieva
1
Erkki Kyrölä
1
Seppo Hassinen
1
Leif Backman
1
Johanna Tamminen
1
Annika Seppälä
1
Laura Thölix
1
Alexandre S. Gurvich
2
Valery Kan
2
Francis Dalaudier
3
Alain Hauchecorne
3
Jean-Loup Bertaux
3
Didier Fussen
4
Filip Vanhellemont
4
Odile Fanton d' Andon
5
Gilbert Barrot
5
Antoine Mangin
5
Marielle Guirlet
5
Thorsten Fehr
6
Paul Snoeij
7
Lidia Saavedra
6
Rob Koopman
6
Renaud Fraisse
8
Johanna Tamminen 1
Author
Annika Seppälä 1
Author
Laura Thölix 1
Author
Alexandre S. Gurvich 2
Author
Valery Kan 2
Author
Francis Dalaudier 3
Author
Alain Hauchecorne 3
Author
Jean-Loup Bertaux 3
Author
Didier Fussen 4
Author
Filip Vanhellemont 4
Author
Odile Fanton d' Andon 5
Author
Gilbert Barrot 5
Author
1
FMI - Finnish Meteorological Institute (Erik Palmenin aukio 1, P.O. Box 503, 00 101 Helsinki, Finland - Finland)
2
IAP - A.M.Obukhov Institute of Atmospheric Physics (
Pyzhyovskiy pereulok, 3, Moscow - Russia)
- RAS - Russian Academy of Sciences [Moscow] (Leninsky Ave, 14, Moscow, Russie, 119991 - Russia)
3
SA - Service d'aéronomie (France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines (55 avenue de Paris - 78035 Versailles cedex - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 (4 place Jussieu - 75005 Paris - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7620 (France)
4
BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (Ringlaan-3-Avenue Circulaire B-1180 Brussels - Belgium)
5
ACRI-ST - Analytic and Computational Research, Inc. - Earth Sciences (260 route du Pin Montard 06904 Sophia-Antipolis - France)
6
ESRIN - European Space Research Institute (Frascati 0044 Roma - Italy)
- ESA - European Space Agency (France)
7
ESTEC - European Space Research and Technology Centre (Keplerlaan 1, 2201 Noordwijk - Netherlands)
- ESA - European Space Agency (France)
8
Astrium [Toulouse] (31 rue des Cosmonautes, Z.I. du Palays, F-31402 Toulouse Cedex 4 - France)
Abstract : Stellar scintillations observed through the Earth atmosphere are caused by air density irregularities generated mainly by internal gravity waves and turbulence. We present global analysis of scintillation variance in two seasons of year 2003 based on GOMOS/Envisat fast photometer measurements. Scintillation variance can serve as a qualitative indicator of intensity of small-scale processes in the stratosphere. Strong increase of scintillation variance at high latitudes in winter is observed. The maximum of scintillation variance can be associated with the polar night jet. The simplified spectral analysis has shown the transition of scintillation spectra toward small scales with altitude, which is probably related with turbulence appearing as a result of wave breaking. The breaking of gravity waves in the polar night jet seems to start in the upper stratosphere, a predicted, but not confirmed by observations before, feature. Weaker enhancements in tropics are also observed; they might be related to tropical convection.
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Journal articles
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https://hal.archives-ouvertes.fr/hal-00162013
Contributor : Cécile Takacs <>
Submitted on : Sunday, December 11, 2016 - 2:37:52 PM
Last modification on : Wednesday, December 9, 2020 - 3:10:57 PM
Long-term archiving on: : Monday, March 27, 2017 - 3:44:00 PM
Contributor : Cécile Takacs <>
Submitted on : Sunday, December 11, 2016 - 2:37:52 PM
Last modification on : Wednesday, December 9, 2020 - 3:10:57 PM
Long-term archiving on: : Monday, March 27, 2017 - 3:44:00 PM
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Sofieva.pdf
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Identifiers
- HAL Id : hal-00162013, version 1
- DOI : 10.1029/2006GL028132
Citation
Viktoria F. Sofieva, Erkki Kyrölä, Seppo Hassinen, Leif Backman, Johanna Tamminen, et al.. Global analysis of scintillation variance: Indication of gravity wave breaking in the polar winter upper stratosphere. Geophysical Research Letters, American Geophysical Union, 2007, 34, pp.L03812. ⟨10.1029/2006GL028132⟩. ⟨hal-00162013⟩
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