Hazard Modeling Using Sentinel Data for Risk Assessment and Management of Tsho Rolpa Glacier, Nepal

Prasil Poudel, Nikesh Budha Chettri, Nabin Sah, Drabindra Pandit

2025

Abstract

The accelerated melting of the Himalayan glaciers due to climate change has caused significant issues including Glacier Lake Outburst Floods (GLOFs), to the downstream communities and the infrastructure. This study focuses on the Tsho Rolpa Glacier in Nepal, utilizing Sentinel-1 Synthetic Aperture Radar (SAR) data to measure ice velocity and analyze the impacts of glacier melting on lake dynamics. A GLOF occurs when the volume and surface area of glacier lake water exceeds the capacity of the moraine dam. For hazard modeling, SAGA GIS 8.3.0 was used for the terrain modeling and hydrological analysis, which highlighted the flood-prone areas. ArcGIS 10.5 facilitated the integration of Sentinel-2 imagery with local topographic data to predict the flood scenarios. The integration of these tools enhanced the accuracy of flood paths predictions and provided much needed valuable insights into the impacts on the local infrastructure. The results highlights the growing risks associated with the climate-induced GLOFs, demonstrating the importance on real-time glacier monitoring and predictive hazard modeling. This study tries to be a helpful tool for decision-support framework for mitigating the socio-economic impacts of GLOFs in vulnerable regions such as the Himalayas.

Paper Citation

in Harvard Style

Poudel P., Chettri N., Sah N. and Pandit D. (2025). Hazard Modeling Using Sentinel Data for Risk Assessment and Management of Tsho Rolpa Glacier, Nepal. In Proceedings of the 11th International Conference on Geographical Information Systems Theory, Applications and Management - Volume 1: GISTAM; ISBN 978-989-758-741-2, SciTePress, pages 165-171. DOI: 10.5220/0013288700003935

in Bibtex Style

@conference{gistam25,
author={Prasil Poudel and Nikesh Chettri and Nabin Sah and Drabindra Pandit},
title={Hazard Modeling Using Sentinel Data for Risk Assessment and Management of Tsho Rolpa Glacier, Nepal},
booktitle={Proceedings of the 11th International Conference on Geographical Information Systems Theory, Applications and Management - Volume 1: GISTAM},
year={2025},
pages={165-171},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013288700003935},
isbn={978-989-758-741-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 11th International Conference on Geographical Information Systems Theory, Applications and Management - Volume 1: GISTAM
TI - Hazard Modeling Using Sentinel Data for Risk Assessment and Management of Tsho Rolpa Glacier, Nepal
SN - 978-989-758-741-2
AU - Poudel P.
AU - Chettri N.
AU - Sah N.
AU - Pandit D.
PY - 2025
SP - 165
EP - 171
DO - 10.5220/0013288700003935
PB - SciTePress