Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tectonism and Drainage Responses: Insights from the Siang River Basin
Siang River, the upstream subbasin of the mighty Brahmaputra in northeast India, enters the Indian territory from the Tibetan plateau through the Namche Barwa massif carrying the footprints of tectonic perturbations. This study uses morphometric, morphotectonic and profile analyses of the Siang basin to quantify the landscape responses to tectonics and spatiotemporal variability in the responses. The tectonic imprints on the river basin's morphological characteristics were studied using SRTM DEM-based morphometric analysis and geomorphic indices. The hypsometric integral (‘H.I'), asymmetry ratio (‘Af') and stream length gradient index (‘S.L') are to mention a few morphotectonic parameters analysed in this study. The higher asymmetry value with the sigmoidal to slightly convex up hypsometric curve of the Siang River indicates an unstable tectonic setting of the river basin. An increasing trend for the ‘S.L' index is visible along the upstream Siang River. The gradient changes with sharp elevation differences were evident from the river's long profile. The ‘chi' plot displays disequilibrium from the steady state, as diversions from linearity, indicating an imbalance between the rate of erosion and upliftment at the upstream reach of the river. These drainage responses of the Siang basin can be attributed as typical landscape responses to the ongoing upliftment and the active tectonics of the area.
Tectonism and Drainage Responses: Insights from the Siang River Basin
Siang River, the upstream subbasin of the mighty Brahmaputra in northeast India, enters the Indian territory from the Tibetan plateau through the Namche Barwa massif carrying the footprints of tectonic perturbations. This study uses morphometric, morphotectonic and profile analyses of the Siang basin to quantify the landscape responses to tectonics and spatiotemporal variability in the responses. The tectonic imprints on the river basin's morphological characteristics were studied using SRTM DEM-based morphometric analysis and geomorphic indices. The hypsometric integral (‘H.I'), asymmetry ratio (‘Af') and stream length gradient index (‘S.L') are to mention a few morphotectonic parameters analysed in this study. The higher asymmetry value with the sigmoidal to slightly convex up hypsometric curve of the Siang River indicates an unstable tectonic setting of the river basin. An increasing trend for the ‘S.L' index is visible along the upstream Siang River. The gradient changes with sharp elevation differences were evident from the river's long profile. The ‘chi' plot displays disequilibrium from the steady state, as diversions from linearity, indicating an imbalance between the rate of erosion and upliftment at the upstream reach of the river. These drainage responses of the Siang basin can be attributed as typical landscape responses to the ongoing upliftment and the active tectonics of the area.
Tectonism and Drainage Responses: Insights from the Siang River Basin
Lecture Notes in Civil Engineering
Dutta, Subashisa (Herausgeber:in) / Chembolu, Vinay (Herausgeber:in) / Uma Narayan, M. (Autor:in) / Bharti, Rishikesh (Autor:in) / Nair, Archana M. (Autor:in)
International Conference on River Corridor Research and Management ; 2022
18.08.2023
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Estimation of design storm rain-depths over the Siang basin in northeast India
| British Library Online Contents | 2004
NTIS | 1951
Developing Columbia River drainage basin
Engineering Index Backfile | 1934
Pengukuran Besar Penerangan Alami Siang Hari Tempat Belajar dari Rumah Pondokan Sekitar Kampus
| DOAJ | 2016
Discussion: Cheong Koon Hean, Simon Cheong, Tai Lee Siang, Erwin Viray - The Singapore Brand
Online Contents | 2011