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Determining the Ice-binding Planes of Antifreeze Proteins by Fluorescence-based Ice Plane Affinity

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Published on: January 15, 2014

Specular scattering by preferentially oriented ice crystals.

Anatoli Borovoi¹, Natalia Kustova

¹Institute of Atmospheric Optics, Russian Academy of Sciences, prospekt Akademicheski 1, Tomsk 634055, Russia. borovoi@iao.ru

|July 3, 2009

Summary

This study analyzes scattered light from oriented ice crystals, detailing specular scattering from fluttering facets. The research analytically models this using a 2D convolution, revealing enhanced light scattering and potential for retrieving crystal properties.

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Area of Science:

Atmospheric optics
Light scattering by ice crystals
Crystallography

Background:

Preferentially oriented ice crystals significantly influence atmospheric light scattering.
Specular scattering, a key component, arises from horizontally oriented crystal facets.
Understanding these interactions is crucial for atmospheric radiative transfer models.

Purpose of the Study:

To analytically derive the specular scattering component from fluttering ice crystals.
To investigate the relationship between crystal orientation, flutter, and scattered light patterns.
To explore methods for retrieving crystal parameters from optical measurements.

Main Methods:

Modeling ice crystals as fluttering thin plates.
Developing an analytical solution for specular scattering using 2D convolution.
Incorporating geometric optics for flutter and Fraunhofer diffraction for particle characteristics.
Numerical calculation of the 2D convolution.

Main Results:

The specular scattering is represented as a convolution of flutter-dependent geometric optics and diffraction functions.
Numerical simulations show cumulative enhancement of scattered light at the center of the scattering domain.
The model provides a framework for analyzing the impact of crystal flutter on light scattering.

Conclusions:

The analytical model successfully describes specular light scattering from fluttering ice crystals.
The findings suggest that flutter parameters and particle sizes can potentially be retrieved from observed specular scattering patterns.
This research contributes to a better understanding of light-ice crystal interactions in the atmosphere.