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Gas phase acetic acid and its qualitative effects on snow crystal morphology and the quasi-liquid layer

机译:气相乙酸及其对雪晶形态和准液层的定性影响

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摘要

A chamber was constructed within which snow crystals were grown on a string at various temperatures, relative humidities, and acetic acid gas phase mole fractions. The temperature, relative humidity, and acid mole fraction were measured for the first time at the point of crystal growth. Snow crystal morphological transition temperature shifts were recorded as a function of acid mole fraction, and interpreted according to the calculated acid concentration in the crystal's quasi-liquid layer, which is believed to have increased in thickness as a function of acid mole fraction, thereby affecting the crystal's morphology consistent with the hypothesis of Kuroda and Lacmann. Deficiencies in the understanding of the quasi-liquid layer and its role in determining snow crystal morphology are briefly discussed.
机译:建造了一个腔室,在该腔室中,在各种温度,相对湿度和乙酸气相摩尔分数下,雪晶在绳子上生长。在晶体生长时首次测量温度,相对湿度和酸摩尔分数。记录了雪晶的形态转变温度变化与酸摩尔分数的关系,并根据计算出的晶体准液层中的酸浓度进行了解释,据信该厚度随酸摩尔分数的变化而增加了厚度,从而影响了晶体的形态与Kuroda和Lacmann的假设一致。简要讨论了对准液层的认识及其在确定雪晶形态中的作用的不足。

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