Extraction, Classification and Visualization of 3-Dimensional Clouds simulated by Cloud-Resolving Atmospheric Model
Extraction, Classification and Visualization of 3-Dimensional Clouds simulated by Cloud-Resolving Atmospheric Model
复制标题
云解析大气模型模拟的三维云的提取、分类和可视化
DOI：
10.1142/s1793962317500519
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Daisuke Matsuoka
中科院分区：
文献类型：
--
作者：
池宮 由楽;糸山 克寿;吉井 和佳;奥乃 博;Daisuke Matsuoka
云分辨大气环流模式使用大型超级计算机再现三维大气场在全球范围内的现实行为。为了让科学家了解模拟结果，传统的基于二维云分类的可视化方法不足以理解单个云及其物理特性。在这项研究中，我们提出了一种新的基于模拟云的三维形状和物理特性的模拟云的三维提取和分类方法。我们提出的方法提取的云水和云冰的单个云，并将它们分为六种类型的高度和向上流动。我们将该方法应用于时变的大气模拟数据，并尝试可视化热带地区的大气现象，如发展积雨云和热带气旋。两个案例研究清楚地显示了个别云类型的行为，并澄清了一些云类型与活跃天气现象期间的降雨有关。所提出的方法有可能分析这种现象，在垂直方向以及水平方向发展。
Cloud-resolving atmospheric general circulation models using large-scale supercomputers reproduce realistic behavior of 3-dimensional atmospheric field on a global scale. To understand the simulation result for scientists, conventional visualization methods based on 2-dimensional cloud classification are not enough for understanding individual clouds and their physical characteristics. In this study, we propose a new 3-dimensional extraction and classification method of simulated clouds based on their 3-dimensional shape and physical properties. Our proposed method extracts individual clouds by cloud water and cloud ice, and classifies them into six types by their altitude and upward flow. We applied the method to time-varying atmospheric simulation data, and attempted to visualize atmospheric phenomena on the tropics such as developing cumulonimbus and tropical cyclone. Two case studies clearly visualize the behavior of individual cloud type and clarify that some cloud types have a relationship with rainfall during active weather phenomena. The proposed method has the potential to analyze such phenomena that develop in the vertical direction as well as the horizontal direction.