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为管理密歇根湖西南部沿海地形变化的多层次评估

Boyuan Lu¹, Wei Wang¹, Nick Jordan¹

¹Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA.

Journal of environmental management

|November 6, 2025

概括

密歇根湖的沿海地形变化显示了侵蚀的增加,特别是近年来沿海岸线的侵蚀. 多尺度分析揭示了波浪影响和局部因素驱动这些变化,这对于有效的沿海管理至关重要.

科学领域:

沿海的地形形态.
环境科学环境科学
地质科学是地球科学.

背景情况:

了解沿海地形变化对于联合国可持续发展目标 (SDGs) 至关重要.
多规模的沿海管理框架需要对地形过程的详细见解.
当地社区从从地形评估中获得的特定背景知识中受益.

研究的目的:

进行密歇根湖西南部沿海地形变化的多层次评估.
分析跨县,范围和截面的空间尺度和长期/短期时间尺度的变化.
调查波浪冲击的影响,并确定导致侵蚀热点的因素.

主要方法:

从1937年到2020年,利用了九套历史性的空中图像.
蓝顶,蓝脚和海岸线的计算长期 (1937-2020) 和短期 (1995-2020) 变化率.
在多个空间尺度上检查了沿海的地形变化,并分析了波浪的影响.

主要成果:

长期的平均侵蚀速度:悬崖山顶 (-0.22米/年),悬崖脚 (-0.17米/年),海岸线 (-0.16米/年).
短期 (1995-2020年) 利率显示海岸线侵蚀增加 (-0.32米/年).
确定了区域和局部的侵蚀模式;波浪的影响在各个规模的影响力各不相同.

结论:

多尺度分析为有效的沿海地形学管理提供了宝贵的见解.
越来越多的海岸线侵蚀需要有针对性的管理战略.
了解局部侵蚀因素是特定地点干预的关键.

关键词:

在海上,海是海.模糊的脚和顶部的峰值.沿海的地形变化多个尺度的多个尺度.波浪冲击的影响.

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