Assessment of Cloudburst and Landslide in East Siang District, Arunachal Pradesh: Combining GIS and Remote Sensing

The development of civilisations is part of human evolution, but it comes at the cost of nature's destruction. Unsustainable human development results in long-term human destruction itself. This paradox underscores the need to implement a sustainable approach that balances human progress with environmental preservation. Due to climate change, many activities in nature become extreme, which directly and indirectly impacts human lives. Cloudbursts and landslides are two calamities that attract researchers' attention. Cloudburst and landslide are interrelated with precipitation. Most of these incidents remain undocumented. The downstream ecosystems of the affected area witness loss of life and property. The Eastern Himalayas are prone to heavy rains, especially cloudbursts, which can cause rapid slope failures and landslides in steep hilly terrain. Recently, that region has faced many calamities that cost human lives and property. This study uses remote sensing and GIS tools to analyse the incidence, spatial distribution, and risk assessment of landslides triggered by cloudbursts in East Siang District, Arunachal Pradesh. Our study area comes in the lower Siwalik range of the Himalayas. The study uses satellite images, Digital Elevation Model (DEM) data and rainfall data. It was found that some parts of the study area are at risk of landslides and cloudbursts. The findings promote improved planning for catastrophe risk reduction in remote areas of the country.

remote sensing, East Siang, Himalaya, cloudburst, landslide

1. David Raj, A., & David Raj, A. (2025). Climate Change Induced Hydro-Meteorological Extremes in the Himalayan Region. In Climate Change: Conflict and Resilience in the Age of Anthropocene (pp. 33-56). Springer. https://doi.org/https://doi.org/10.1007/978-3-031-85359-3_2 [Google Scholar] [Crossref]

2. Deoja, B. B. (2000). Mountain roads development in Nepal: engineering geological concerns. Journal of Nepal Geological Society, 22, 167–178-167–178. https://doi.org/https://doi.org/10.3126/jngs.v22i0.32340 [Google Scholar] [Crossref]

3. Dimri, A. P., Chevuturi, A., Niyogi, D., Thayyen, R. J., Ray, K., Tripathi, S. N., Pandey, A., & Mohanty, U. (2017). Cloudbursts in Indian Himalayas: a review. Earth-Science Reviews, 168, 1-23. https://doi.org/https://doi.org/10.1016/j.earscirev.2017.03.006 [Google Scholar] [Crossref]

4. Ezeh, C., Ezeh, J., Ekwezuo, C., & Ekwezuo, J. (2021). The COVID-19 crisis worsens with the occurrence of climate extremes and disasters. Centr Eur J Geograp Sustain Dev, 3(2), 5-16. [Google Scholar] [Crossref]

5. Gupta, V., Dobhal, D., & Vaideswaran, S. (2013). August 2012 cloudburst and subsequent flash flood in the Asi Ganga, a tributary of the Bhagirathi river, Garhwal Himalaya, India. Current science, 249-253. [Google Scholar] [Crossref]

6. Gupta, V., Nautiyal, H., Kumar, V., Jamir, I., & Tandon, R. S. (2016). Landslide hazards around Uttarkashi township, Garhwal Himalaya, after the tragic flash flood in June 2013. Natural Hazards, 80(3), 1689-1707. https://doi.org/https://doi.org/10.1007/s11069-015-2048-4 [Google Scholar] [Crossref]

7. Hobley, D. E., Sinclair, H. D., & Mudd, S. M. (2012). Reconstruction of a major storm event from its geomorphic signature: The Ladakh floods, 6 August 2010. Geology, 40(6), 483-486. https://doi.org/https://doi.org/10.1130/G32935.1 [Google Scholar] [Crossref]

8. Mantovani, F., Soeters, R., & Van Westen, C. (1996). Remote sensing techniques for landslide studies and hazard zonation in Europe. Geomorphology, 15(3-4), 213-225. https://doi.org/https://doi.org/10.1016/0169-555X(95)00071-C [Google Scholar] [Crossref]

9. Ramya, A., Poornima, R., Karthikeyan, G., Priyatharshini, S., Thanuja, K. G., & Dhevagi, P. (2023). Climate-induced and geophysical disasters and risk reduction management in mountains regions. In Climate change adaptation, risk management and sustainable practices in the Himalaya (pp. 361-405). Springer. https://doi.org/https://doi.org/10.1007/s12040-025-02691-2 [Google Scholar] [Crossref]

10. Ray, K., Pandey, P., Pandey, C., Dimri, A., & Kishore, K. (2019). On the recent floods in India. Current science, 117(2), 204-218. [Google Scholar] [Crossref]

11. Rehman, S., & Azhoni, A. (2023). Analyzing landslide susceptibility, health vulnerability and risk using multi-criteria decision-making analysis in Arunachal Pradesh, India. Acta Geophysica, 71(1), 101-128. https://doi.org/https://doi.org/10.1007/s11600-022-00943-z [Google Scholar] [Crossref]

12. Samantray, P., & Gouda, K. C. (2024). A comprehensive study of atmospheric dynamics associated with cloudburst events in 2022 over Indian Himalayan Region. Journal of Earth System Science, 133(3), 151. https://doi.org/https://doi.org/10.1007/s12040-024-02370-8 [Google Scholar] [Crossref]

13. Sangode, S., Meshram, D., Rawat, S., Kulkarni, Y., Chate, D., & Gudadhe, S. (2017). Sedimentary and geomorphic signatures of a cloud burst and triggered flash floods in the Indus valley of Ladakh Himalaya. Himalayan Geology, 38(1), 12-29. [Google Scholar] [Crossref]

14. Sharma, N., & Shukla, S. P. (1992). Geography and development of hill areas: A case study of Arunachal Pradesh. Mittal Publications. [Google Scholar] [Crossref]

15. Sikka, D., Ray, K., Chakravarthy, K., Bhan, S., & Tyagi, A. (2015). Heavy rainfall in the Kedarnath valley of Uttarakhand during the advancing monsoon phase in June 2013. Current science, 353-361. [Google Scholar] [Crossref]

16. Singh, S., & Kansal, M. L. (2021). Cloudburst—a major disaster in the Indian Himalayan states. In Civil engineering for disaster risk reduction (pp. 115-126). Springer. https://doi.org/https://doi.org/10.1007/978-981-16-5312-4_9 [Google Scholar] [Crossref]

17. Singhroy, V., & Molch, K. (2004). Characterizing and monitoring rockslides from SAR techniques. Advances in Space Research, 33(3), 290-295. https://doi.org/https://doi.org/10.1016/S0273-1177(03)00470-8 [Google Scholar] [Crossref]

18. Singhroy, V., & Molch, K. (2004). Geological case studies related to RADARSAT-2. Canadian Journal of Remote Sensing, 30(6), 893-902. [Google Scholar] [Crossref]

19. Singhroy, V., Ohkura, H., & Glenn, N. F. (2002). Earth observation for landslide assessment. IGARSS, [Google Scholar] [Crossref]

20. Union, I.-P. (2011). International Federation of Red Cross and Red Crescent Societies. [Google Scholar] [Crossref]

21. Walton, D., & van Aalst, M. (2020). Climate-related extreme weather events and COVID-19. A first look at, 2191. [Google Scholar] [Crossref]

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