Atmos. Chem. Phys., 9, 8967-8973, 2009
www.atmos-chem-phys.net/9/8967/2009/
doi:10.5194/acp-9-8967-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
Technical note: Scintillations of the double star α Cru observed by GOMOS/Envisat
V. F. Sofieva1, F. Dalaudier2, V. Kan3, and A. S. Gurvich3
1Earth observation, Finnish Meteorological Institute, Helsinki, Finland
2LATMOS, Université Versailles Saint-Quentin; CNRS/INSU, Verrières-le-Buisson, France
3Organization of Russian Academy of Sciences A. M. Obukhov Institute of Atmospheric Physics RAS, Moscow, Russia

Abstract. In this paper, we discuss scintillation time-spectra of the double star α Cru, which were measured by the GOMOS/Envisat photometer. The components of α Cru are not resolved by the angular field of view of the detector. The double structure of the light source reveals itself in the modulation of the observed scintillation spectra; this modulation is caused by anisotropic irregularities of the stratospheric air density. We present a qualitative and quantitative explanation of the properties of the double-star scintillation spectra. Possibilities of using double star scintillations for studying atmospheric air density irregularities are also discussed in the paper.

Citation: Sofieva, V. F., Dalaudier, F., Kan, V., and Gurvich, A. S.: Technical note: Scintillations of the double star α Cru observed by GOMOS/Envisat, Atmos. Chem. Phys., 9, 8967-8973, doi:10.5194/acp-9-8967-2009, 2009.
 
Search ACP
Final Revised Paper
PDF XML
Citation
Discussion Paper
Share