On the accuracy and speed of RTM algorithms for atmospheric correction of satellite images in the visible and UV ranges
V.V. Belov1,2, M.V. Tarasenkov1,2
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
belov@iao.ru
2National Research Tomsk State University, 36, Lenin Avenue, Tomsk, 634050,Russia
tmv@iao.ru
Keywords: Monte Carlo method, atmospheric correction, radiative transfer equation, re-reflection, adjacency effect, solar haze, spherical geometry
Abstract
Algorithms for reconstruction of the Earth’s surface reflection coefficient from the data of satellite measurements are suggested. They allow the main components of radiation, forming an Earth’s surface image, to be taken into account with different degrees of accuracy. The algorithms involve a solution of the radiative transfer equation with the use of the linear system theory, Monte Carlo method, approximation formulas, and criterion of image isoplanarity. The algorithms are validated based on numerical experiments and comparisons with results of calculations by other authors.
|
