Automating the analysis of hailstone layers
Automating the analysis of hailstone layers
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DOI：
10.5194/amt-16-695-2023
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发表时间：
2023-02
影响因子：
3.8
通讯作者：
J. Soderholm;M. Kumjian
中科院分区：
文献类型：
--
作者：
J. Soderholm;M. Kumjian
抽象。冰雹内部的层状结构提供了它们在生长过程中不同阶段的形状和性质的直接指示。考虑到可能存在的无数不同轨迹，以及雾凇存款类型对环境条件的敏感性，必须预期在一次冰雹风暴中会发生许多不同的冰雹特性扰动;然而，对于相似大小的冰雹（特别是那些沿着相似轨迹生长的冰雹）和接近融化水平的最终生长，在共同的早期生长阶段可能存在一些共性。从大量的冰雹样本中提取这一信息仍然具有挑战性，因为准备横截面和准确测量各个层需要时间。为了减少人工分析冰雹的劳动力和潜在的错误，介绍了一种自动化的方法，用于测量层从横截面照片，并应用于一组收集在澳大利亚墨尔本的冰雹。这项工作的动机是新的冰雹生长模拟工具，模拟层内的个别冰雹，准确测量观测到的冰雹横截面的增长可以应用作为验证。第一次看到这种新类型的冰雹生长模拟的评价证明。
Abstract. The layered structures inside hailstones provide a direct indication of their shape and properties at various stages during growth. Given the myriad of different trajectories that can exist, and the sensitivity of rime deposit type to environmental conditions, it must be expected that many different perturbations of hailstone properties occur within a single hailstorm; however, some commonalities are likely in the shared early stages of growth, for hailstones of similar size (especially those that grow along similar trajectories) and final growth near the melting level. It remains challenging to extract this information from a large sample of hailstones because of the time required to prepare cross sections and accurately measure individual layers. To reduce the labour and potential errors introduced by manual analysis of hailstones, an automated method for measuring layers from cross section photographs is introduced and applied to a set of hailstones collected in Melbourne, Australia. This work is motivated by new hail growth simulation tools that model the growth of layers within individual hailstones, for which accurate measurements of observed hailstone cross sections can be applied as validation. A first look at this new type of evaluation for hail growth simulations is demonstrated.