Optimization of sequential code for simulation of solar radiative transfer in a vertically heterogeneous environment

Russkova, T. V.; Zhuravleva, T. B.

doi:10.1134/s1024856017020117

Cited by 21 publications

(11 citation statements)

References 12 publications

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“…Atmospheric hexagonal ice particles of the cirrus clouds make a significant contribution to the Earth's radiation balance and should be taken into account in global climate models [1][2][3][4][5][6][7][8] . These clouds are located at altitudes of 7-11 km, and consist of particles with sizes of 10-1000 µm [9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

Light backscattering properties of atmospheric ice hexagonal particles with a distorted geometry within the physical optics approximation

Timofeev

Kustova²,

Shishko³

et al. 2022

Remote Sensing of Clouds and the Atmosphere XXVII

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The elements of light backscattering matrix for atmospheric ice hexagonal particles with distorted shapes with random spatial orientation were calculated within the physical optics approximation. Three different set of particle geometry shapes was created by distortion of a solid hexagonal column for calculation. The distortion angle for each method is 0- 50 degrees. The wavelength of the incident radiation was 1.064 μm. The backscattering cross section, the linear depolarization ratio, and the lidar ratio are presented.

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Section: Introductionmentioning

confidence: 99%

Light backscattering properties of atmospheric ice hexagonal particles with a distorted geometry within the physical optics approximation

Timofeev

Kustova²,

Shishko³

et al. 2022

Remote Sensing of Clouds and the Atmosphere XXVII

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“…Atmospheric aerosol (suspended in the atmosphere solid particles of dust, ice, etc.) has a significant effect on the transfer of solar radiation in the atmosphere [1][2][3][4][5][6][7][8][9] . Interacting with aerosol particles, solar radiation is partially absorbed, but mainly scattered.…”

Section: Introductionmentioning

confidence: 99%

Light scattering database for interpretation of lidar sounding of cirrus clouds

Konoshonkin

Kustova

Shishko

et al. 2022

Remote Sensing of Clouds and the Atmosphere XXVII

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Scattering of light by ice crystals of cirrus clouds is an important problem for remote sensing of clouds and the atmosphere. Such a solution is necessary for the interpretation of data obtained by active and passive remote sensing instruments, such as lidars and photometers. Ice crystals in cirrus clouds are large non-spherical particles. To solve the problem of light scattering by large non-spherical particles, it is not possible to apply rigorous numerical methods such as FDTD, DDA, PSDT, due to their high computational complexity for large particles. This problem also cannot be solved within the framework of the classical geometrical optics approximation, since this method does not take into account such phenomena as diffraction and interference, which have a significant effect in the vicinity of the backscattering direction. This report presents the solution for the problem of light scattering by non-spherical particles with sizes from 10 to 1000 µm. The results were obtained within the framework of the physical optics approximation. The obtained database of light scattering matrices allows one to improve the accuracy of interpretation of laser sounding data of atmospheric aerosol and crystal clouds for lidars and remote sensing applications..

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“…The backscattering peak and negative polarization, were known in astronomy and astrophysics for almost 100 years [1][2][3][4]. The backscattering peak for a large particle with irregular shape was associated with the well-known peak of the coherent backscattering [5][6][7]. But appearance of the negative polarization is the puzzle that has not been understood completely yet.…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of polarization at vicinity of near backscattering direction by atmospheric irregular crystal particles

Kustova

Konoshonkin

Shishko

et al. 2022

Remote Sensing of Clouds and the Atmosphere XXVII

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The paper presents peculiarities of polarization at vicinity of near backscattering direction for large randomly oriented irregular particles. We used our physical optics approximation where the light scattered inside the particle consists of many plane-parallel beams. It is shown that the backscattering peak is caused by interference between the light beams with any number of refraction/reflection events; however, only pair of conjugate beams with four events (two internal reflections and two refractions at the exit faces of the particle) lead to local minimum in polarization element in scattering (Mueller) matrixes and create negative polarization.

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Optimization of sequential code for simulation of solar radiative transfer in a vertically heterogeneous environment

Cited by 21 publications

References 12 publications

Light backscattering properties of atmospheric ice hexagonal particles with a distorted geometry within the physical optics approximation

Light backscattering properties of atmospheric ice hexagonal particles with a distorted geometry within the physical optics approximation

Light scattering database for interpretation of lidar sounding of cirrus clouds

Peculiarities of polarization at vicinity of near backscattering direction by atmospheric irregular crystal particles

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