Serial № 13.
model of small halo phenomenon
V. Zagorodnikova (SRPMS,
11 class, 2008-2009)
The work is made under supervising of senior lecturer
of General and Theoretical Department of Samara State
University Philippov Ju. P. It has been awarded
the third degree diploma
of the winner
of XVIII All-Russia scientific - practical conference for the gifted
school-boys «Intel-Dinastiya-Avangard 2009».
"Computer modelling"; 2)
the first degree diploma of winner
of Final scientific and practical conference of pupils of the
in 2009; 3)
the second degree diploma of
scientific and practical conference of
in section "Theoretical and experimental
methods in physics"
published in journal
of the Samara Regional Physical
and Mathematical School.
− 2009. − №5. −
simplest physical model of 22°-halo based on the geometrical optics and
physics of atmospheric clouds is represented
in the work. The task about determination of flux
angular distribution of light for single
crystal is solved. The general algorithm is developed and its special case
is considered in detail. It is shown, that at θ = 22.06 ° the sharp maximum
of flux is observed. The task about determination
of concentration of water ice crystals from height is solved in an
analytical form. Calculation of flux angular
distribution of light scattering by a cloud of crystals is made. The full
profile of flux angular distribution
of light is received. The received result explains all basic features
of a visual image 22 ° - halo. It is shown, that uncertainty of halo
external border directly correlates with turbulence of lifting air streams
which hold crystals in a equilibrium.
of work (in russian, full version of the paper
consists of 65 pp.)