The Hough transform algorithm coupled with spatial filtering for the study of geological structuring control on the drai
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ORIGINAL PAPER
The Hough transform algorithm coupled with spatial filtering for the study of geological structuring control on the drainage network: application to the North Oulmes region, Morocco Amal Saidi 1 & Tarik Bouramtane 2 & Mohammed Achab 1 & M’hamed El janati 2 & Nadia Kassou 2 & Ilias Kacimi 2 & Abdelfatah Tahiri 1 & Vincent Valles 3 Received: 26 February 2020 / Accepted: 22 September 2020 # Saudi Society for Geosciences 2020
Abstract In a changing climate, the more we understand the drainage networks distribution and structuration, the more we can better predict flood risks, and ensure better water resource management. The identification of geological lineaments is a basic approach for the study and analysis of surficial geological structuring that potentially controls the drainage networks distribution and subsurface water resources. Taking the North Oulmes region in Morocco as an example, an automatic lineament detection algorithm based on the Hough transform has been applied to the Landsat 8 OLI and Sentinel-1 SAR data. This technique was coupled with spatial filtering and field data with the aim of identifying surface geological structures that may control the drainage network. This study also presents an analysis of the drainage network which concerns the identification of similarities between its structuring and geological lineaments, through the analysis of rose diagrams and the identification of the different drainage network patterns. The results show that the geological lineaments identified by the algorithm are very satisfactory, geologically significant, and represent continuity toward the surface of the underlying structures. The findings of this study also show that the conformation of the drainage network characteristics with the geological structures and the rectangular and trellis drainage patterns observed in the study area indicate that the distribution and structuring of the drainage network is mainly controlled by the geological structures trending NE-SW resulting from the Hercynian tectonic event. Keywords Hough transform . Spatial filtering . Lineament . Rectangular . Structural control . Morocco
Introduction The occurrence of drainage networks in different areas depends on relief, geological, and climatic characteristics which produce
Responsible Editor: Biswajeet Pradhan * Tarik Bouramtane [email protected] 1
Geo-Biodiversity and Natural Patrimony Laboratory, Scientific Institute, Mohammed V University, Rabat, Morocco
2
Geoscience, Water and Environment Laboratory, Faculty of Sciences, Mohammed V University, Avenue Ibn Batouta, Rabat, Morocco
3
UMR 1114 INRAE EMMAH Avignon Université, Avignon, France
specific attributes, like patterns, that define the network structure and impact the basin’s hydrological response (Zernitz 1932; Howard 1967; Twidale 2004; Berger and Entekhabi 2001; Burr et al. 2013; Jung and Ouarda 2017; Pereira-Claren et al. 2019). Understanding the meaning of the arrangement and structuring of the drainage network, as well as determining its dist
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