# Toward a Comprehensive Model of Snow Crystal Growth Dynamics: 2. Structure Dependent Attachment Kinetics near -5 C

Source: [Toward a Comprehensive Model of Snow Crystal Growth Dynamics: 2. Structure Dependent Attachment Kinetics near -5 C](<https://www.sota2.com/research/paper/68fa30b01e209131ce877904>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-27T03:32:53.359Z

Authors: Kenneth G. Libbrecht

Published: 2013-02-05T22:51:33.000Z

## Abstract

We present experimental data demonstrating the presence of structure-dependent attachment kinetics (SDAK) in ice crystal growth from water vapor near -5 C. Specifically, we find that the nucleation barrier on the basal edge of a thin-walled hollow columnar crystal is approximately ten times smaller than the corresponding nucleation barrier on a large basal facet. These observations support the hypothesis that SDAK effects play an important role in determining the growth morphologies of atmospheric ice crystals as a function of temperature.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1302.1231>)

[PDF](<https://arxiv.org/pdf/1302.1231.pdf>)