article published Alexander Konoshonkin author Anatoli Borovoi author Natalia Kustova author Hajime Okamoto author Hiroshi Ishimoto author Yevgen Grynko author 26059 Jens Förstner author 1580000-0001-7059-9862 61 department Computing Resources Provided by the Paderborn Center for Parallel Computing project The problem of light scattering by ice crystals of cirrus clouds is considered in the case of a hexagonal ice plate with different distributions over crystal orientations. The physical-optics approximation based on (E, M)-diffraction theory is compared with two exact numerical methods: the finite difference time domain (FDTD) and the discontinuous Galerkin time domain (DGTD) in order to estimate its accuracy and limits of applicability. It is shown that the accuracy of the physical-optics approximation is estimated as 95% for the averaged backscattering Mueller matrix for particles with size parameter more than 120. Furthermore, the simple expression that allows one to estimate the minimal number of particle orientations required for appropriate spatial averaging has been derived. https://ris.uni-paderborn.de/download/3834/3835/2017-07 Grynko_Light scattering by ice crystals of cirrus clouds From exact numerical methods to physical-optics approximation.pdf application/pdf Elsevier BV2016 eng tet_topic_scattering 0022-407310.1016/j.jqsrt.2016.12.024 195132-140 Konoshonkin, A., Borovoi, A., Kustova, N., Okamoto, H., Ishimoto, H., Grynko, Y., &#38; Förstner, J. (2016). Light scattering by ice crystals of cirrus clouds: From exact numerical methods to physical-optics approximation. <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>, <i>195</i>, 132–140. <a href="https://doi.org/10.1016/j.jqsrt.2016.12.024">https://doi.org/10.1016/j.jqsrt.2016.12.024</a> Konoshonkin, Alexander, et al. “Light Scattering by Ice Crystals of Cirrus Clouds: From Exact Numerical Methods to Physical-Optics Approximation.” <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>, vol. 195, Elsevier BV, 2016, pp. 132–40, doi:<a href="https://doi.org/10.1016/j.jqsrt.2016.12.024">10.1016/j.jqsrt.2016.12.024</a>. A. Konoshonkin <i>et al.</i>, “Light scattering by ice crystals of cirrus clouds: From exact numerical methods to physical-optics approximation,” <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>, vol. 195, pp. 132–140, 2016. A. Konoshonkin, A. Borovoi, N. Kustova, H. Okamoto, H. Ishimoto, Y. Grynko, J. Förstner, Journal of Quantitative Spectroscopy and Radiative Transfer 195 (2016) 132–140. Konoshonkin A, Borovoi A, Kustova N, et al. Light scattering by ice crystals of cirrus clouds: From exact numerical methods to physical-optics approximation. <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i>. 2016;195:132-140. doi:<a href="https://doi.org/10.1016/j.jqsrt.2016.12.024">10.1016/j.jqsrt.2016.12.024</a> Konoshonkin, Alexander, Anatoli Borovoi, Natalia Kustova, Hajime Okamoto, Hiroshi Ishimoto, Yevgen Grynko, and Jens Förstner. “Light Scattering by Ice Crystals of Cirrus Clouds: From Exact Numerical Methods to Physical-Optics Approximation.” <i>Journal of Quantitative Spectroscopy and Radiative Transfer</i> 195 (2016): 132–40. <a href="https://doi.org/10.1016/j.jqsrt.2016.12.024">https://doi.org/10.1016/j.jqsrt.2016.12.024</a>. @article{Konoshonkin_Borovoi_Kustova_Okamoto_Ishimoto_Grynko_Förstner_2016, title={Light scattering by ice crystals of cirrus clouds: From exact numerical methods to physical-optics approximation}, volume={195}, DOI={<a href="https://doi.org/10.1016/j.jqsrt.2016.12.024">10.1016/j.jqsrt.2016.12.024</a>}, journal={Journal of Quantitative Spectroscopy and Radiative Transfer}, publisher={Elsevier BV}, author={Konoshonkin, Alexander and Borovoi, Anatoli and Kustova, Natalia and Okamoto, Hajime and Ishimoto, Hiroshi and Grynko, Yevgen and Förstner, Jens}, year={2016}, pages={132–140} } 38342018-08-07T10:20:26Z2022-01-06T06:59:40Z