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南极雪崩机制:分析,模拟和应用
Enzhao Xiao1, Shengquan Li2, Ali Matin Nazar3
1Polar Research Institute of China, Shanghai 200136, China.
Materials (Basel, Switzerland)
|April 13, 2024
概括
南极雪地缺雪,包括雪崩,对基础设施构成风险. 本综述考察了理论模型和数值模拟,以更好地理解和减轻这些雪风险,以实现更安全的设施建设.
科学领域:
- 地质物理学和环境科学 环境科学
- 土木工程和基础设施风险评估
背景情况:
- 雪灾,包括崩和雪崩,是南极洲的一个重大自然危险,严重的降雪和极端天气加剧了.
- 这些事件对极地地区的人类活动和基础设施构成重大风险.
- 对雪崩机制的全面了解对于有效的危险评估和风险减轻至关重要.
研究的目的:
- 审查和分析在南极雪崩研究中使用的理论模型和数值模拟方法.
- 为了解雪的特性,模拟技术及其在南极基础设施开发中的应用提供一个综合的资源.
主要方法:
- 理论模型的审查:光纤捆绑模型 (FBM),离散元件模型 (DEM),细胞自动机 (CA) 和连续腔扩展透 (CCEP).
- 获取三维 (3D) 实体模型的方法概述.
- 对数值模拟技术的讨论:有限元法 (FEM) 和3D材料点法 (MPM).
主要成果:
- 分析各种理论模型及其适用于模拟失雪的适用性.
- 评估3D建模技术及其优缺点.
- 突出FEM和MPM在捕捉复杂的失雪行为方面的能力.
- 介绍案例研究和实验验证模型在南极的背景下.
结论:
- 该综述综合了当前关于南极雪缺失的知识,强调了理论和数值方法的重要性.
- 研究结果为南极易受雪影响的环境中基础设施的设计和管理提供了宝贵的见解.
- 更好地了解雪崩动态对于确保极地设施的安全性和弹性至关重要.
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