短暂的电磁成像在缩的死海入的盐水入侵
Jafar Abu Rajab1,2, Pritam Yogeshwar3,4, Bülent Tezkan3
1Department of Earth Sciences and Environment, Prince El-Hassan Bin Talal Faculty for Natural Resources and Environment, The Hashemite University, Zarqa, 13133, Jordan. jafars@hu.edu.jo.
Scientific reports
|August 18, 2025
概括
在死海 (DS) 地区的盐水入侵被使用过渡电磁 (TEM) 调查绘制地图. 这种地质物理方法揭示了路径及其与地质特征的联系,有助于戈尔阿尔哈迪萨地区的水资源管理.
科学领域:
- 地质物理学 地质物理学
- 水文地质学 水文地质学
- 环境科学 环境科学
背景情况:
- 死海 (DS) 地区面临严重的环境问题,如盐水入侵 (SWI),沉坑和土地沉降,水位下降加剧了这些问题.
- 戈尔·阿尔·哈迪萨 (GAH) 地区尤其受到影响,威胁其稳定性,水资源和农业基础设施.
- 了解SWI的空间范围和路径对于减轻这些危险至关重要.
研究的目的:
- 图像盐水入侵路径及其与结构和水文特征的关系在死海的戈尔·阿尔·哈迪萨地区.
- 利用地质物理方法对GAH区域进行详细的地下调查.
- 为脆弱环境中有效的水资源管理策略提供见解.
主要方法:
- 在GAH的4公里×3公里区域进行了195次过渡电磁 (TEM) 探测,重点是流通道配置文件.
- 采用1D奥卡姆和马奎特-莱文伯格的反转技术来解释数据.
- 创建空间电阻模型和截面以可视化地下结构和盐水接口.
主要成果:
- 在100米以下的深度确定了一个盐水接口,其电阻率<1.0 Ωm,遵循地下流通道.
- 地图上的SWI延伸在浅层内陆1.75公里,主要沿着一个中央通道,表明显著的水文地质路径影响.
- 在断层区域附近观察到较小的电阻异常,表明潜在的局部盐水上游和分层地下 (淡水,水,盐水).
结论:
- TEM调查有效地描绘了盐水入侵路径及其与GAH地区地下水文和结构特征的相关性.
- 这项研究强调了河流道在促进盐水入侵和影响含水层脆弱性方面的重要作用.
- 这些发现支持为死海地区制定有针对性的水资源管理和危害减轻策略.
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