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使用分析层次过程 (AHP) 识别城市淹水风险区:阿加塔拉市的案例
Bulti Das1, Tuhin Kanti Ray2, Eshita Boral3
1Department of Geography and Disaster Management, Tripura University, Suryamaninagar, Agartala, 799022, Tripura, India.
Environmental monitoring and assessment
|February 24, 2025
概括
阿加特拉拉的城市淹水造成了重大风险,超过8.95%的城市位于非常高至高风险区域. 这项研究使用GIS和遥感来绘制这些地区的地图,帮助未来的缓解和土地利用规划.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 地理信息科学 地理信息科学
背景情况:
- 城市水淹是全球的一个关键问题,阿加特拉拉的快速发展,干扰排水,强降雨和人口增长加剧了这一问题.
- 计划不良的基础设施和自然低地形对阿加特拉拉的严重浸水问题作出了重大贡献,特别是在季风季节.
研究的目的:
- 用分析层次过程 (AHP) 建模和识别阿加塔拉市的水淹没危险,漏洞和风险.
- 为阿加特拉拉创建一个全面的浸水库存地图,详细说明风险的空间变化.
- 提供数据驱动的洞察力,用于有效的城市规划和对抗水淹没的缓解策略.
主要方法:
- 综合方法结合了地理信息系统 (GIS) 和遥感 (RS) 技术.
- 应用分析层次流程 (AHP) 来分析危险和漏洞映射的16个参数.
- 使用接收器操作特征 (ROC) 曲线分析 (AUC = 80.1%) 与地面真实数据验证的浸水库存地图的开发.
主要成果:
- 大约3.45%的阿加塔拉 (2.64平方公里) 被确定为非常高风险的浸水区,另外5.50% (4.21平方公里) 处于高风险类别.
- 高风险的浸水区域集中在阿加塔拉的中部,低和城市化密集的地区.
- 该研究在预测容易淹水的地区方面取得了80.1%的准确性,这表明与地面真相数据有很强的相关性.
结论:
- 综合的AHP方法有效地确定了阿加塔拉的水淹没风险区,为城市提供了一种新的评估方法.
- 调查结果为决策者提供了关键信息,以制定有针对性的中长期减缓战略,并指导未来的土地利用规划.
- 这种方法可以在全球范围内应用,以支持城市规划和防止未来的水淹没事件.
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