在埃塞俄比亚北部,阿姆哈拉地区使用地理空间技术绘制地下水潜力的空间分析
Amare GebreMedhin Nigusse1, Gedefaw Baye2, Gebremedhin Berhane3
1Institute of Geo-Information and Earth Observation Sciences, Department of Geo-Information and Earth Observation Sciences for Natural Resource Management, Mekelle University, Mekelle, Ethiopia. amarenigusse@gmail.com.
Scientific reports
|November 10, 2025
概括
这项研究利用地空间技术绘制了埃塞俄比亚北部的地下水潜力. 地质学,线状物密度和地形学是关键因素,该模型达到85%的准确性.
科学领域:
- 水文地质学 水文地质学
- 地理空间科学 地理空间科学
- 环境建模环境建模
背景情况:
- 地下水是埃塞俄比亚北部的一个关键资源,面临着日益增长的需求和稀缺.
- 有效的地下水管理需要准确识别和绘制潜在区域的地图.
- 地空间技术为分析复杂的环境数据提供了先进的工具.
研究的目的:
- 在埃塞俄比亚北部确定和绘制潜在的地下水位.
- 使用地理空间技术开发一个地下水潜力 (GWP) 模型.
- 评估各种环境因素对地下水发生的影响.
主要方法:
- 利用卫星图像,主题地图和气候/生物物理数据 (降雨量,地质,土壤,土地使用/土地覆盖).
- 在ArcGIS中使用重量叠加建模,集成八个选定的变量.
- 计算了参数权重,确定地质,线条密度和地形学是最有影响的.
主要成果:
- 创建了一个GWP地图,将地区分为五个适用性类别:非常好 (14%),好 (16%),中等 (24%),贫穷和非常贫穷 (47%).
- 确定了在高原和温和斜坡地区非常好的潜在地点,在适度粗的地形上很好的地点,在波浪地形上适度的地点.
- 低GWP区域主要在的斜坡上发现.
结论:
- 地质学,地形学和线状物密度是研究区域地下水分布的主要调节因素.
- 开发的地理空间模型在预测地下水潜力方面显示了85%的准确性,并使用接收器操作特征 (ROC) 分析进行了验证.
- 建议使用高质量的数据和现场测量进行进一步的研究,以提高准确性.
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