Contribution of the Water Vapor Continuum Absorption to the Radiation Balance of the Atmosphere with Cirrus Clouds

Chesnokova, T. Yu.; Firsov, K. M.; Razmolov, A. A.

doi:10.1134/s1024856019010056

Cited by 22 publications

(13 citation statements)

References 15 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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“…Recent climatic changes dictate the need for a closer and more detailed study of climate-forming factors and their relationship within the climate system as a whole [1][2][3][4][5][6][7][8][9][10] . Cirrus clouds are one of the main sources of uncertainty in modern climate models and long-term weather forecasting [11][12][13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

Calculation of light backscattering matrix by the DDA method for arbitrary particles of cirrus clouds for lidar remote sensing

Konoshonkin

Shishko²,

Kustova³

et al. 2022

Remote Sensing of Clouds and the Atmosphere XXVII

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The paper presents a solution to the problem of light scattering by small randomly oriented ice crystals of arbitrary shape. The solution was obtained within the discrete dipole approximation. The particle sizes ranged from 0.02 up to 4 μm. The wavelength of the incident radiation is 0.532 μm, the refractive index is 1.3116. The influence of the number of dipoles per lambda and number of orientations on the convergence of the solution is shown. It is shown that the computation time has an exponential law dependence on particle size.

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Contribution of the Water Vapor Continuum Absorption to the Radiation Balance of the Atmosphere with Cirrus Clouds

Cited by 22 publications

References 15 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

Calculation of light backscattering matrix by the DDA method for arbitrary particles of cirrus clouds for lidar remote sensing

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