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Morphometric Analysis of Tectonically Active Bhimtal-Naukuchiatal Lake Basin, Kumaun Himalaya

Kalpana Gururani1 , Bahadur Singh Kotlia1 , Pooja Chand1 , Manmohan Kukreti1 , Deepanshu Parashar2 , Arun Kalkhundiya3 , Pankaj Kumar Bhatt4 and Arvind Pandey2 *

1 Department of Geology, Centre for Advance studies in Geology, Kumaun University, Nainital, India

2 Department of Remote Sensing and GIS, Centre of Excellence for NRDMS in Uttarakhand, Soban Singh Jeena University, Almora, Campus Almora, Uttarakhand India

3 Department of Zoology, Soban Singh Jeena University, Almora, Campus Pithoragarh, Uttarakhand India

4 Department of Geography, Soban Singh Jeena University, Almora, Campus Pithoragarh, Uttarakhand India

Corresponding author Email: pandeyarvind02@gmail.com

DOI: http://dx.doi.org/10.12944/CWE.18.2.32

Bhimtal-Naukuchiatal region, which is an integral part of the Kumaun Lesser Himalaya, is sensitive to natural disasters and has a fragile environment as a result of neotectonic activity along the thrust and secondary thrust/faults. With regard to neotectonic activity, this study aims to comprehend the tectonic instability of the basin. Morphometric analysis is a computable research of landforms that is crucial to understanding how the landscape has evolved in response to nearby tectonic activity. In present exercise we have calculated ten morphometric indices, viz., Valley floor width-height ratio (Vf), Hypsometric Integral (HI), Stream-Length gradient Index (SL), Bifurcation ratio (Rb), Drainage density (Dd), Stream Order (Sµ) and average Sinuosity (S), Relief (H), steepness (Ksn), Chi integral (?) and Asymmetric Factor (AF). The result shows low values of Vf indicate high upliftment rate, more incision and less channel down cutting. Most morphometric results suggest tilted basin, resulting in V-shaped valleys and a distorted and unstable longitudinal profile, which indicate the area is governed by both tectonics and lithology. The field geomorphic features along with the software based calculations suggest that the Bhowali-Bhimtal-Naukuchiatal is tectonically active zone.

Bhimtal-Naukuchiatal basin; Geographical profile; Morphometric analysis; Neotectonic activity

Copy the following to cite this article:

Gururani K, Kotlia B. S, Chand P, Kukreti M, Parashar D, Kalkhundiya A, Bhatt P. K. Pandey A. Morphometric Analysis of Tectonically Active Bhimtal-Naukuchiatal Lake Basin, Kumaun Himalaya. Curr World Environ 2023;18(2). DOI:http://dx.doi.org/10.12944/CWE.18.2.32

Copy the following to cite this URL:

Gururani K, Kotlia B. S, Chand P, Kukreti M, Parashar D, Kalkhundiya A, Bhatt P. K. Pandey A. Morphometric Analysis of Tectonically Active Bhimtal-Naukuchiatal Lake Basin, Kumaun Himalaya. Curr World Environ 2023;18(2).

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