Vol. 27, issue 07, article # 7

Dagurov P.N., Dmitriev A.V., Dymbrylov Zh.B., Radnaeva S.B. Earth's surface brightness temperature measured by the microwave radiometer SMOS, and the problem of soil moisture recovering. // Optika Atmosfery i Okeana. 2014. V. 27. No. 07. P. 605-609 [in Russian].
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Abstract:

The angular and polarization dependencies of the brightness temperature measured by the spaceborne radiometer SMOS in L-band on different parts of the earth's surface are shown. It is found that in some cases the results are not described by the existing model for the reflection coefficient of microwaves, which leads to errors in recovering the soil moisture. It is shown by calculation that the layered structure of soil moisture has a significant impact on the behavior of brightness temperature. It is proposed to expand the moisture-recovering algorithm by the method which takes into account possible layered structure of the soil moisture.

Keywords:

microwave sensing, brightness temperature, soil moisture, layered soil

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