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基于卫星的垂直陆地运动用于基础设施监测:德克萨斯州大休斯顿地区的原型路线图
B Buzzanga1,2, M Govorcin3, F Kremer4
1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA. buzzanga@jpl.nasa.gov.
Scientific reports
|May 16, 2025
概括
沿海沉降和海平面上升威胁到危险物质储. 整合卫星数据揭示了未来的洪水风险,有助于在脆弱的沿海地区保护基础设施和环境安全.
科学领域:
- 地球和环境科学 地球和环境科学
- 遥感和地理空间分析
- 沿海工程与管理
背景情况:
- 沿海基础设施,包括地面储 (AST),面临着洪水造成的重大风险.
- 沉降,或负垂直陆地运动 (VLM),加剧了沿海工业区的洪水脆弱性.
- 美国环境保护局 (EPA) 要求AST储存危险物质的风险减轻.
研究的目的:
- 制定一个框架,将来自卫星的VLM数据整合到危险评估和决策过程中.
- 使用高分辨率遥感数据,绘制和量化大休斯顿-加尔维斯顿地区的VLM.
- 通过结合VLM和SLR场景,预测未来相对海平面上升 (SLR) 对AST的影响.
主要方法:
- 利用了美国宇航局从远程传感分析 (OPERA) 获得的最终用户的观测产品VLM产品,这些产品来自Sentinel-1卫星数据.
- 从2016年到2023年,在大休斯顿-加尔维斯顿地区绘制了大约30米分辨率的VLM地图.
- 额外推断了线性VLM趋势,并将它们与海平面上升场景和水力动力学模型相结合.
主要成果:
- 在整个研究区域确定了广泛和空间变化的沉降.
- 预计到2050年,该地区的AST将面临至少26.1厘米的相对SLR,其中14.9%暴露于60厘米以上.
- 在未来相对SLR条件下,在极端事件 (例如,风哈维) 期间证明了放大洪水危险.
结论:
- 高分辨率的VLM数据对于准确的沿海危险评估至关重要.
- 整合VLM和SLR预测可以提高对关键基础设施未来风险的了解.
- 该研究提供了一份路线图,用于利用遥感来支持沿海地区的环境保护和基础设施弹性.
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