IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2011  > Vol8 No.5
Fractal measures of drainage network to investigate surface deformation from remote sensing data: A paradigm from Hindukush (NE-Afghanistan)
Mahmood, Syed Amer; Gloaguen, Richard
Corresponding AuthorMahmood, SA (reprint author), Freiberg Univ Min & Technol, Inst Geol, Remote Sensing Grp, D-09599 Freiberg, Germany.
2011-10
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume8Issue:5Pages:641–654
AbstractThis approach represents the relative susceptibility of the topography of the earth to active deformation by means of geometrical distinctiveness of the river networks. This investigation employs the fractal analysis of drainage system extracted from ASTER Global Digital Elevation Model (GDEM-30m resolution). The objective is to mark active structures and to pinpoint the areas robustly influenced by neotectonics. This approach was examined in the Hindukush, NE-Afghanistan. This region is frequently affected by deadly earthquakes and the modern fault activities and deformation are driven by the collision between the northward-moving Indian subcontinent and Eurasia. This attempt is based on the fact that drainage system is strained to linearize due to neotectonic deformation. Hence, the low fractal dimensions of the Kabul, Panjsher, Laghman, Andarab, Alingar and Kocha Rivers are credited to active tectonics. A comprehensive textural examination is conducted to probe the linearization, heterogeneity and connectivity of the drainage patterns. The aspects for these natural textures are computed by using the fractal dimension (FD), lacunarity (LA) and succolarity (SA) approach. All these methods are naturally interrelated, i.e. objects with similar FD can be further differentiated with LA and/or SA analysis. The maps of FD, LA and SA values are generated by using a sliding window of 50 arc seconds by 50 arc seconds (50aEuro(3) x 50aEuro(3)). Afterwards, the maps are interpreted in terms of regional susceptibility to neotectonics. This method is useful to pinpoint numerous zones where the drainage system is highly controlled by Hindukush active structures. In the North-Northeast of the Kabul block, we recognized active tectonic blocks. The region comprising, Kabul, Panjsher, Andrab, Alingar and Badakhshan is more susceptible to damaging events. This investigation concludes that the fractal analysis of the river networks is a bonus tool to localize areas vulnerable to deadly incidents influencing the Earth's topography and consequently intimidate human lives.
KeywordFractal Drainage Network Lacunarity Succolarity Surface Deformation And Hindukush
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5863
CollectionJournal of Mountain Science _Journal of Mountain Science-2011_Vol8 No.5
Recommended Citation
GB/T 7714
Mahmood, Syed Amer,Gloaguen, Richard. Fractal measures of drainage network to investigate surface deformation from remote sensing data: A paradigm from Hindukush (NE-Afghanistan)[J]. JOURNAL OF MOUNTAIN SCIENCE,2011,8(5):641–654.
APA Mahmood, Syed Amer,&Gloaguen, Richard.(2011).Fractal measures of drainage network to investigate surface deformation from remote sensing data: A paradigm from Hindukush (NE-Afghanistan).JOURNAL OF MOUNTAIN SCIENCE,8(5),641–654.
MLA Mahmood, Syed Amer,et al."Fractal measures of drainage network to investigate surface deformation from remote sensing data: A paradigm from Hindukush (NE-Afghanistan)".JOURNAL OF MOUNTAIN SCIENCE 8.5(2011):641–654.
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