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

Abstract

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.

The First Global Insight of Cirrus Clouds Characterized by Hollow Ice Crystals From Space‐Borne Lidar

“…Although a significant number of rosettes are present in cirrus clouds, particularly in in situ cirrus formation (Bailey & Hallett, 2009; Lawson et al., 2019), Timofeev et al. (2023) indicated that a single column and a combination of columns exhibit nearly identical backscattering properties, and their disparity in scattering cross‐sections in various directions is primarily influenced by the number of columns. This discovery eliminates the need to construct a separate model to characterize rosettes when utilizing MMHC for studying columnar ice crystals.…”

Global Analysis of Height‐Resolved Ice Particle Categories From Spaceborne Lidar

“…Since, the components of complex crystals are the most important element determining their optical properties, compared to other factors, such as the larger ice crystal polycrystalline structure (Macke, 1993; Sato & Okamoto, 2006; Van Diedenhoven, 2018), it can be considered that the particle habit used in this study is also representative of aggregates of those elements. The δ range of bullet rosettes and 3D column aggregates corresponding to the r eff range in Figure 1a varies from about 30% to 34% and 24% to 28% at 532 nm (Okamoto et al., 2020; Timofeev et al., 2023), respectively, and these 3D aggregate types are included in the bullet type category in this study.…”