论文标题
迈向雪晶体生长的综合模型：9。表征与结构相关的附着动力学接近-4 c
Toward a Comprehensive Model of Snow Crystal Growth: 9. Characterizing Structure-Dependent Attachment Kinetics near -4 C
论文作者
论文摘要
在本文中，我研究了与包括结构依赖性附着动力学（SDAK）的综合模型相比，雪晶的生长接近-4 C。与本系列的上一篇论文一起研究了接近14 C的增长，我表明，现在有大量的实验数据支持在-4 c附近的基部表面上存在明显的“ SDAK倾角”，并且在-14 C接近-14 C上的棱镜表面上，这两种模型在两种模型中都表明，相关的表面差异大大降低了相对范围范围的范围，从而在范围内更狭窄。在-4 C和-14 C附近的生长行为中，显着的定量相似性表明，这两个SDAK特征是由在两个主要方面的不同温度下发生的基本相同的物理机制产生的。当应用于大气雪晶形成时，这种综合模型可以解释Nakaya图中血小板和柱状生长之间的复发形态过渡。
In this paper I examine snow crystal growth near -4 C in comparison with a comprehensive model that includes Structure-Dependent Attachment Kinetics (SDAK). Together with the previous paper in this series that investigated growth near 14 C, I show that a substantial body of experimental data now supports the existence of pronounced 'SDAK dips' on basal surfaces near -4 C and on prism surfaces near -14 C. In both cases, the model suggests that edge-associated surface diffusion greatly reduces the nucleation barrier on narrow facet surfaces relative to that found on broad facets. The remarkable quantitative similarities in the growth behaviors near -4 C and -14 C suggest that these two SDAK features arise from essentially the same physical mechanism occurring at different temperatures on the two principal facets. When applied to atmospheric snow crystal formation, this comprehensive model can explain the recurrent morphological transitions between platelike and columnar growth seen in the Nakaya diagram.
