Remote sensing and sig contribution for the identification of the fracturation influence on the drainage network architecture in the High Ziz River basin, Central High Atlas, Morocco
| Autor: | Hassan Tabyaoui, Lhoussaine Masmoudi, Khadija Diani, Hicham Elbelrhiti, Mahmoud Zemzami, Ilias Kacimi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
geography geography.geographical_feature_category drainage network Ecology Atlas (topology) lineaments 010604 marine biology & hydrobiology Drainage basin 010501 environmental sciences Aquatic Science 01 natural sciences High Ziz River automatic extraction and remote sensing Drainage network Architecture Cartography Ecology Evolution Behavior and Systematics Geology QH540-549.5 0105 earth and related environmental sciences Water Science and Technology high ziz river |
| Zdroj: | Limnological Review, Vol 19, Iss 4, Pp 149-158 (2019) Limnological Review; Volume 19; Issue 4; Pages: 149-158 |
| ISSN: | 2300-7575 |
| Popis: | This study aims to contribute to a better estimation of the density of fractures likely to favour the drainage of surface water in the High Ziz River (HZR) basin. The method adopted consists of the use of different airborne image processing techniques (filtering, enhancement and slope analysis) which allow a good discrimination of image discontinuities (lineaments) that can then be used for producing lineament maps. The influence of these lineaments on the underground flow is then studied. Indeed, it was possible to extract the lineament network, following the exploitation of remote sensing and an objectively completed analog analysis using the PCI Geomatica LINE module and its directional filters (Sobel directional filters by the ACP method), and to extract the hydrographic network of the HZR basin, using the ArcHydro tool. After superimposing these data, their thematic maps (of the lineament and hydrographic network) were developed. In addition, this comparison of the two hydrographic networks and lineament maps showed us very varied flow directions influenced by geological structures, particularly fracturing. The topography of the region also has a secondary impact on flows through the presence of slopes generally oriented towards the SE of the basin. The correlation of the results with the different directions of the orders of the hydrographic network allowed us to identify the potential effects of lineaments on the orientations of surface water circulation. In addition to these results, the realization of the Rose diagram indicated that the dominant trend in lineaments is N90–45N° (NE–SW). |
| Databáze: | OpenAIRE |
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