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High precision structural mapping using edge filters of potential field and remote sensing data: A case study from Wadi Umm Ghalqa area, South Eastern Desert, Egypt
The Egyptian Journal of Remote Sensing and Space Sciences ( IF 3.7 ) Pub Date : 2022-03-07 , DOI: 10.1016/j.ejrs.2022.03.001
Ahmed M. Eldosouky 1 , Luan Thanh Pham 2 , Ahmed Henaish 3
Affiliation  

Recently, detecting the edges and geologic structures (deep and shallow) from potential field sources provides a fundamental tool for interpreting geological structures. Therefore, the high precision computation of the edges of potential sources is becoming an essential requirement for studying subsurface structures. In this study, nine common detectors like tilte angle (TA), Theta-map (TM), Horizontal tilt angle (TDX), hyperbolic tilt angle (HTA), Improved tilt angle (ITA), Tilt angle of the total horizontal gradient (TTHG), Tilt angle of the total gradient (TTG), improved Theta-map (ITM), and improved logistic (IL) were applied. These filters have been tested on theoretical models and real data (aeromagnetic) from the Wadi Umm Ghalqa area, South Eastern Desert of Egypt. The obtained results have shown that the improved logistic (IL) filter could detect edges more successfully than the other eight filters. The results of the IL method were used to generate new accurate structural maps for local and deep components of the investigated area. Moreover, surface structures obtained from remote sensing data were considered to control the interpretation of the mapped subsurface lineaments. Hence, the IL method can be utilized as a sharp tool for the high precision structural imaging of the potential data.



中文翻译:

使用势场边缘滤波器和遥感数据的高精度结构制图:以埃及东南沙漠 Wadi Umm Ghalqa 地区为例

最近,从潜在场源中检测边缘和地质结构(深部和浅部)为解释地质结构提供了基本工具。因此,对潜在源边缘的高精度计算正成为研究地下结构的基本要求。在这项研究中,九种常见的探测器,如倾斜角(TA),Theta-map(TM),水平倾斜角(TDX),双曲线倾斜角(HTA),改进倾斜角(ITA),总水平梯度倾斜角( TTHG)、总梯度倾斜角 (TTG)、改进的 Theta-map (ITM) 和改进的逻辑 (IL)。这些过滤器已在埃及东南沙漠 Wadi Umm Ghalqa 地区的理论模型和实际数据(航空磁力)上进行了测试。获得的结果表明,改进的逻辑 (IL) 滤波器可以比其他八个滤波器更成功地检测边缘。IL 方法的结果用于为所调查区域的局部和深层成分生成新的准确结构图。此外,从遥感数据中获得的地表结构被认为可以控制对映射的地下线条的解释。因此,IL 方法可以用作对潜在数据进行高精度结构成像的利器。从遥感数据中获得的地表结构被认为可以控制对映射的地下线条的解释。因此,IL 方法可以用作对潜在数据进行高精度结构成像的利器。从遥感数据中获得的地表结构被认为可以控制对映射的地下线条的解释。因此,IL 方法可以用作对潜在数据进行高精度结构成像的利器。

更新日期:2022-03-07
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