提升沿海的弹性:使用尖端空间地质测量和光学成像技术评估沿海的脆弱性
Amalina Izzati Abdul Hamid1, Ami Hassan Md Din1, Norhakim Yusof2
1Geospatial Imaging and Information Research Group (GI2RG), Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.
iScience
|June 17, 2024
概括
太空地质测量和光学成像增强了沿海脆弱性评估. 这种方法为沿海管理和分类提供了更准确和可行的替代方案.
科学领域:
- 地球和太空科学 地球和太空科学
- 遥感 遥感 遥感 遥感
- 沿海地区的管理
背景情况:
- 由于气候变化和人为压力,沿海地区面临越来越大的脆弱性.
- 沿海脆弱性指数 (CVI) 评估的传统方法可能缺乏时空准确性和广泛适用性.
研究的目的:
- 通过使用空间地质测量和光学成像技术来评估沿海脆弱性指数 (CVI).
- 为了比较八变量CVI模型与传统六变量模型的有效性.
- 适应当代的沿海分类和管理方法.
主要方法:
- 使用卫星高度计,地球观测卫星 (SPOT) 和集成多卫星检索GPM (IMERG) 数据.
- 通过专家加权分数量化变量并将其集成到一个单一的CVI中.
- 应用时空估计,以评估变量的充分性和准确性.
主要成果:
- 与六变量模型相比,八变量CVI模型表现出更高的整体准确性 (70.83%),卡帕系数 (59.02%) 和曲线下面积 (AUC) (0.8) 的优异性能.
- 中等脆弱性排名 (2) 是最主要的,覆盖了特伦加努海岸的27.2%.
- 脆弱性排名在研究区域中分布相对均.
结论:
- 太空地质测量和光学成像技术为CVI评估提供了非常有益和准确的方法.
- 这些遥感方法为更大规模的沿海管理提供了传统技术的可行替代方案.
- 增强的CVI模型改善了沿海分类和适应策略.
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