Zobrazeno 1 - 10
of 124
pro vyhledávání: '"A. S. Gurvich"'
Autor:
A. S. Gurvich, V. A. Kulikov
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Pp 3851-3864 (2017)
Airborne lidar forward sensing along the flight direction can serve for notification of clear air turbulence (CAT) and help to prevent injuries or fatal air accidents. The validation of this concept was presented in the framework of the DELICAT (D
Externí odkaz:
https://doaj.org/article/792ce94533794554bd57ec4f145165fa
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 22, Pp 8967-8973 (2009)
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 l
Externí odkaz:
https://doaj.org/article/8b9f7e390b0244c1b17f377b9f6e1660
Autor:
A. S. Gurvich, I. P. Chunchuzov
Publikováno v:
Annales Geophysicae, Vol 26, Pp 2037-2042 (2008)
A phenomenological model is proposed for a 3-D spectrum of temperature inhomogeneities generated by internal waves in the atmosphere. This model is a development of the theory based on the assumption that a field of Lagrangian displacements of flu
Externí odkaz:
https://doaj.org/article/6a71427724a845538621e186ff58976f
Autor:
A. S. Gurvich
Publikováno v:
Annales Geophysicae, Vol 15, Pp 856-869 (1997)
Many measurements have shown that the random temperature fields in the stably stratified atmosphere are not locally isotropic (LI). The local axial symmetry (LAS) hypothesis looks more appropriate under these conditions. The object of this paper c
Externí odkaz:
https://doaj.org/article/5394b48471c3437c9e9b1060abadbb0c
Autor:
V. A. Kulikov, A. S. Gurvich
Publikováno v:
Atmospheric and Oceanic Optics. 29:410-414
Airborne lidar sounding of aerosol clusters by a laser beam sent forward in the aircraft flight direction is considered. Observability of the temporal evolution of short-lived (from a few to tens of seconds) aerosol clusters with horizontal scales fr
Autor:
A. S. Gurvich, M. I. Fortus
Publikováno v:
Izvestiya, Atmospheric and Oceanic Physics. 52:165-175
The operation of a lidar intended for clear air turbulence (CAT) positioning on the basis of the backscatter enhancement (BSE) effect is analyzed using a turbulence model with a power-law spectrum. Systematic distortions occurring due to a need to re
Autor:
A. S. Gurvich
Publikováno v:
Izvestiya, Atmospheric and Oceanic Physics. 50:143-151
The possibility of lidar positioning of regions with higher clear-air turbulence (CAT) is shown. The turbulence is indicated by air density fluctuations generated by it. A scheme with a lidar based on using the backscattering enhecement (BSE) effect
Autor:
A. S. Gurvich
Publikováno v:
Izvestiya, Atmospheric and Oceanic Physics. 48:585-594
A simple derivation of the equations describing the backscatter enhancement (BSE) effect of waves on small inhomogeneities in a randomly inhomogeneous medium is presented. The BSE effect is considered in a locally isotropic turbulent atmosphere. It i
Publikováno v:
Atmospheric and Oceanic Optics. 24:347-357
The numerical examination of 2D spectra of strong stellar scintillations observed through the Earth’s atmosphere from space is carried out. The atmosphere contains a combination of statistically independent, anisotropic large-scale and isotropic sm
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 22, Pp 8967-8973 (2009)
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 l