5·î25Æü(ÌÚ) 15:30 -- 17:00 Prof. Umirzak M. Sultangazin
(Space Research Institute, Kazakhstan)
``Some Mathematical Problems of Atmospheric Correction
on Remote Sensing Imagery''
¡ãAbstarct¡ä
The remote sensing from a satellite or an airborne platform of the land
or the sea surface in the visible and near infrared is strongly affected
by the presence of the atmosphere on the Sun-target-Sensor path.
In the present research, we consider some numerical methods of inverse
problems for the calculation of atmospheric effects in remote sensing of
the ground and oceans reflectance. The proposed method is based on the
spherical harmonic in the solution of the radiation transfer equation in
atmosphere with the inhomogeneous land surface. The developed method also
consists in restitution of the optical characteristics of atmosphere and
land surface on the using of radiance measured by the sensor. The method
is established for general case of a reflection on the Earth's surface
for multiple scattering.
Outline of the presentation
(1)Introduction
(2)Posed problem of radiative transfer equation in 3-D plane geometry
(3)Method of spherical harmonic for the radiative transfer equation
and boundary conditions
(4)Construction of a transmittance function based on the method of
spherical harmonics
(5)A simple algorithm for the atmospheric correction in the general
case of reflection on the Earth's surface
(6)A usage of this method for restitution of the temperature field
(7)Conclusion