Effects of crystallographic properties on the ice nucleation properties of volcanic ash particles
Effects of crystallographic properties on the ice nucleation properties of volcanic ash particles
复制标题
晶体学特性对火山灰颗粒冰核特性的影响
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
T. Varga
中科院分区：
文献类型：
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作者：
G. Kulkarni;M. Nandasiri;A. Zelenyuk;J. Beránek;N. Madaan;A. Devaraj;V. Shutthanandan;S. Thevuthasan;T. Varga
火山灰颗粒的具体化学和物理性质可能会影响它们诱导冰形成的能力，但人们对这些性质的了解甚少。在本研究中，在沉积模式下，研究了粒径选择的火山灰和矿物粉尘颗粒在−30至−38°C温度下的冰核性质及其与表面化学和晶体结构的关系。在所有温度和相对湿度条件下，粉尘颗粒的冰核效率均高于灰颗粒。颗粒表征分析表明，灰和尘颗粒表面元素组成相似；然而，灰分样品的结构性质不同。
Specific chemical and physical properties of volcanic ash particles that could affect their ability to induce ice formation are poorly understood. In this study, the ice nucleating properties of size‐selected volcanic ash and mineral dust particles in relation to their surface chemistry and crystalline structure at temperatures ranging from −30 to −38°C were investigated in deposition mode. Ice nucleation efficiency of dust particles was higher compared to ash particles at all temperature and relative humidity conditions. Particle characterization analysis shows that surface elemental composition of ash and dust particles was similar; however, the structural properties of ash samples were different.
影响因子：
6.3
作者：
H. Wex;P. DeMott;Y. Tobo;S. Hartmann;Michael Rösch;T. Clauss;L. Tomsche;D. Niedermeier;F. Stratmann
通讯作者：
H. Wex;P. DeMott;Y. Tobo;S. Hartmann;Michael Rösch;T. Clauss;L. Tomsche;D. Niedermeier;F. Stratmann