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Comparing Landslide Susceptibility in Northwest and Northeast Himalaya: A Case Study of Kangra and Tamenglong Districts

Authors

Singh,  Ankit
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

kc,  Niraj
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Dhiman,  Nitesh
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kumar Mahanta,  Kirti
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kumar Gupta,  Sharad
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Praise Shukla,  Dericks
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Singh, A., kc, N., Dhiman, N., Kumar Mahanta, K., Kumar Gupta, S., Praise Shukla, D. (2023): Comparing Landslide Susceptibility in Northwest and Northeast Himalaya: A Case Study of Kangra and Tamenglong Districts, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4157


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021596
Abstract
The increasing effect of climate change and anthropogenic activities have left the mountains under great stress, resulting in Natural Hazards. Among all other natural hazards, landslide poses a significant threat to life and property. In recent decades, plenty of literature has been available on the application and methodology adopted in preparing landslide susceptibility maps (LSMs), mainly focusing on the Himalayan region. However, fewer attempts have been made to compare the susceptibility in North-Western and North-Eastern Himalaya. Hence, in this study, LSM is prepared for 2 districts; one district of northwest i.e Kangra, Himachal Pradesh and one district of northeast i.e. Tamenglong, Manipur. The landslide inventory was prepared using available data, field data and satellite image interpretation, and nine causative factors were used in LSM preparation using frequency ratio (FR). The results showed that in the Kangra district, the weight of lithology was highest followed by distance to road and lineament, while in Tamenglong, the importance of distance to road was highest. 16% area in Kangra and 31% in Tamenglong district falls in high and very high landslide suscpetibile area. In addtion, Tamenglong district had more significant portion of high and very high suscpetibile area compared to Kangra district. The AUC value of LSM for Kangra and Tamenglong district was 0.91 and 0.89, respectively. Generally, due to excessive precipitation, fragile geology, earthquake and tectnoic activities it is seen that, in northeast areas are more susceptible to landslide as compared to northwest Himalaya.