The aim of the work is to theoretically estimate the intensity and polarization of the thermal radio emission from precipitation, as observed by spaceborne microwave radiometers. We propose to use the successive-orders-of-scattering method to simulate microwave radiation from both clouds and precipitation. We also carry out numerical simulations of the thermal radio emission transfer in a rainy atmosphere at several wavelengths. We evaluate the effectiveness of both the proposed method and the finite-difference method and compare their respective solutions. We demonstrate that the successive-orders-of-scattering method offers a significant advantage in solving the tasks posed.

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Microwave Radiative Transfer in Rainy Atmospheres: The Successive-Orders-of-Scattering Approach

  • Yaroslav V. Kopcov,
  • Yaroslav A. Ilyushin,
  • Boris G. Kutuza

摘要

The aim of the work is to theoretically estimate the intensity and polarization of the thermal radio emission from precipitation, as observed by spaceborne microwave radiometers. We propose to use the successive-orders-of-scattering method to simulate microwave radiation from both clouds and precipitation. We also carry out numerical simulations of the thermal radio emission transfer in a rainy atmosphere at several wavelengths. We evaluate the effectiveness of both the proposed method and the finite-difference method and compare their respective solutions. We demonstrate that the successive-orders-of-scattering method offers a significant advantage in solving the tasks posed.