H080
Hydrologic Extremes in South and Southeast Asia: Challenges and Opportunities
Session ID#: 249380
Session Description:
Complex topography, coupled with environmental extremes and underlying socioeconomic vulnerability, amplifies disaster risks in South and Southeast Asia. Observational records and model simulations indicate intensifying impacts of natural hazards such as floods, droughts, wildfires and heatwaves. Data scarcity in the region presents significant challenges but also opens opportunities for innovation in risk analyses, modeling, and predictions. Despite considerable advances in hydrologic and hydrometeorological research in recent decades, key gaps remain in data integration and interdisciplinary synthesis. A persistent challenge lies in synthesizing fragmented knowledge across disciplines and geographic scales. This session intends to provide a collective perspective on (i) current trends in hydrologic disaster risk research, (ii) innovative approaches to address data gaps, and (iii) emerging research opportunities in hydrology and environmental science within the region. We welcome abstracts from researchers both within and outside the region, particularly those offering interdisciplinary insights or novel methodological contributions.
Co-Sponsor(s):
Index Terms:
1817 Extreme events [HYDROLOGY]
1840 Hydrometeorology [HYDROLOGY]
4306 Multihazards [NATURAL HAZARDS]
4339 Disaster mitigation [NATURAL HAZARDS]
Primary Convener: Sanjib Sharma, Howard University, Department of Civil and Environmental Engineering, Washington, DC, United States and Sangam Shrestha
Conveners: Sangam Shrestha, Asian Institute of Technology, Water Engineering and Management (WEM), Pathumthani, Thailand, Ganesh R Ghimire, University of Iowa, Iowa City, United States, Jeeban Panthi, Kansas State University, Biological and Agricultural Engineering Department, Manhattan, United States and Sangam Shrestha
Student/Early Career Convener: Sunil Bista, Jackson State University, Department of Civil and Environmental Engineering, Jackson, MS, United States and Sangam Shrestha
Assessing Climate Change Impacts on Hydrology of the Gandaki River Basin through Multi-Site SWAT Model Calibration. (1846269)
Shankar Lamichhane, Asian Institute of Technology, Surathani, Thailand, Sangam Shrestha, Asian Institute of Technology, Water Engineering and Management (WEM), Pathumthani, Thailand and Sonu Khanal, Institute for Environmental Studies (IVM) VU University Amsterdam, Amsterdam, Netherlands
Future Hydropower Variability in Himalayan Snow-Fed and Spring-Fed Rivers under Climate and Land Use Change Uncertainty (1848074)
Mr. Nirajan Devkota, PhD scholar, Tribhuvan University, Kathmandu, Nepal, Pawan Kumar Bhattarai, Pulchowk Campus, Institute of Engineering, Tribhuvan University, Department of Civil Engineering, Lalitpur, Nepal and Suraj Lamichhane, Tribhuvan University, Institute of Engineering, Department of Civil Engineering, Lalitpur, Nepal
Advancing Water Risk Assessment with Satellite Data and Flood Models in Data-Limited Regions (1850488)
Akira Watanuki1, Takahiro Sayama2, Shiori Abe3 and Yosuke Nakamura3, (1)Suntory Global Innovation Center Limited, Institute for Water Science, Kyoto, Japan, (2)Disaster Prevention Research Institute, Kyoto University, Uji, Japan, (3)Mitsui Consultants Co., Ltd., Shinagawa-ku, Japan
From Clouds to Contaminants: Episodic Hydrochemical Perturbations Driven by Monsoonal Extremes in the Brahmaputra River Basin (1870371)
Sourav Kumar1, Michael Manga2 and Archana M Nair1, (1)Indian Institute of Technology Guwahati, Earth System Science and Engineering Division, Department of Civil Engineering, Guwahati, India, (2)Univ of California Berkeley, Earth and Planetary Sciences, Berkeley, United States
Future Projections of Flood Hazards in the Karnali River Basin Using LSTM-HEC-RAS Modeling (1883981)
Hanik Lakhe, Asian Institute of Technology, Water Engineering and Management (WEM), Pathum Thani, Thailand, Sangam Shrestha, Asian Institute of Technology, Water Engineering and Management (WEM), Pathumthani, Thailand and Rocky Talchabhadel, Jackson State University, Department of Civil and Environmental Engineering, Jackson, United States
Projecting Urban Flood Risks in a Changing Climate: A Modeling Framework for Dhaka, Bangladesh (1905509)
Faria Akther, Bangladesh University of Engineering and Technology (BUET), BUET-Japan Institute of Disaster Prevention and Urban Safety (BUET-JIDPUS), Dhaka, Bangladesh, Sonia Binte Murshed, Bangladesh University of Engineering and Technology (BUET), Institute of Water and Flood Management (IWFM), Dhaka, Bangladesh and Siam Alam, Center for Environmental and Geographic Information Services (CEGIS), Dhaka, Bangladesh
Precipitation Temporal Disaggregation for Event-Based Hydrological Modeling in the Kathmandu Watershed, Nepal (1913827)
Saurav Bhattarai, Jackson State University, Department of Civil and Environmental Engineering, Jackson, MS, United States, Rocky Talchabhadel, Jackson State University, Department of Civil and Environmental Engineering, Jackson, United States and Nawa Raj Pradhan, Engineer Research and Development Center, Vicksburg, United States
Evaluating the Applicability of SWOT and SWORD for Nepal’s Water Monitoring: Building a Scalable National Database (1915529)
Bishal Dahal, Pulchowk Campus, Institute of Engineering, Tribhuvan University, Kathmandu, Bagmati, NEPAL, Saurav Bhattarai, Jackson State University, Department of Civil and Environmental Engineering, Jackson, MS, United States, Pawan Kumar Bhattarai, Pulchowk Campus, Institute of Engineering, Tribhuvan University, Department of Civil Engineering, Lalitpur, Nepal and Rocky Talchabhadel, Jackson State University, Department of Civil and Environmental Engineering, Jackson, United States
Spatiotemporal Assessment of Urban Heat Island and Heatwave Dynamics in Densely Populated Nepalese Cities: Evaluating Nature-Based Cooling Strategies (1916637)
Rocky Talchabhadel1, Saurav Bhattarai1, Anirudra Kumar Prajapati2, Bibhav Karn2, Biraj Bhattarai2, Rupak Yadav2 and Pawan Kumar Bhattarai3, (1)Jackson State University, Department of Civil and Environmental Engineering, Jackson, MS, United States, (2)Tribhuvan University, Institute of Engineering, Department of Civil Engineering, Kathmandu, Nepal, (3)Tribhuvan University, Institute of Engineering, Department of Civil Engineering, Lalitpur, Nepal
Evaluating the Utility of CORDEX Regional Climate Models for Climate Impact Studies in the Mekong River Basin. (1918916)
Reepal Shah, Tulane University of Louisiana, ByWater Institute, New Orleans, LA, United States, Yushiou Tsai, Tulane University of Louisiana, ByWater Institute, New Orleans, United States and John L Sabo, Tulane University, ByWater Institute, New Orleans, United States
Assessing Agricultural Vulnerability to Extreme Floods in Bangladesh: An Integrated Modeling Approach (1921639)
Md Nurul Kadir, University of Florida, Geological Sciences, Gainesville, United States, HM Abdullah, Bangabandhu Agricultural University, Agroforestry and Environment, Gazipur, Bangladesh and Md Moinul Hosain Oliver, Bangabandhu Agricultural University, Irrigation and Water Management, Gazipur, Bangladesh
Climate-Driven Landslide Susceptibility and Population Exposure Modeling in the Nepal Himalaya Using Machine Learning Tool and CMIP6 Scenarios (1930638)
Tulasi Ram Bhattarai, Ehime University, Graduate School of Science and Engineering, Civil and Environmental Engineering, Matsuyama, Japan, Netra Prakash Bhandary, Ehime University, Faculty of Collaborative Regional Innovation (Graduate School of Science and Engineering), Matsuyama, Japan and Kalpana Pandit, Ehime University, Civil and Environmental Engineering, Matsuyama, Japan
Flood Risk Assessment of Temples in Bangkok Metropolitan Area Based on Modified Elevation Data and Satellite-based Inundation Data (1941092)
Masaya Sakabe1, Kota Tsuzuki2, Yuto Kawamura1 and Taichi Tebakari3, (1)Chuo University, Human and Environmental Science and Engineering Course, Bunkyo-ku,Tokyo, Japan, (2)Chuo University, Civil, Human and Environmental Science and Engineering Course, Hachioji, Japan, (3)Chuo University, Depertment of Civil and Environmental Engineering, Bunkyo-ku,Tokyo, Japan
A Refined Avulsion Risk Framework Using SWOT and Field Data (1945955)
Bo Wang, Saint Louis University Main Campus, Earth, Environment, and Geospatial Science, Saint Louis, United States and Carly Koppe, Saint Louis University Main Campus, Department of Earth and Atmospheric Sciences, Saint Louis, United States
Hillslope Hydrological Extremes under Changing Monsoon Patterns and Land Use Dynamics (1947174)
Dibyandu Roy, Post Doctoral Fellow, Indian Institute of Technology Bombay, Civil Engineering, Mumbai, India and J. Indu, Associate Professor, Indian Institute of Technology Bombay, Department of Civil Engineering, Mumbai, India
Urban Flood Risk Assessment in Hanumante Watershed: A Multi-Criteria Decision Approach with Real Scenario Validation (1956722)
Sudeep Duwal, Smartphones For Water Nepal, Lalitpur, Nepal, Rajaram Prajapati, smartphones4water, Pittsburgh, United States, Rocky Talchabhadel, Jackson State University, Department of Civil and Environmental Engineering, Jackson, United States and Tirtha Raj Raj Adhikari, Tribhuvan University, Central Department of Hydrology and Meteorology, Kirtipur, Kathmandu, Nepal
A Cloud-Based Framework for the Modeling and Prediction of Post-Wildfire Hydrologic Response in Diverse Catchments Across Nepal (1959873)
Bikash Khadka1, Bhupendra Singh Thapa1, Pawan Kumar Bhattarai1 and Sujan Khanal2, (1)Pulchowk Campus, Institute of Engineering, Tribhuvan University, Department of Civil Engineering, Lalitpur, Nepal, (2)Institute of Forestry (IOF), Pokhara Campus, Department of Natural Resource Management, Pokhara, Nepal
Attribution of Contemporary Streamflow Variability to Climate, Dams and Land Cover Change in the Irrawaddy River, Southeast Asia (1973802)
Sophea Rom Phy1, Mauricio Arias1, Eunjee Lee2, Susantha Jayasinghe3, Miguel Laverde-Barajas3 and Randal D Koster4, (1)University of South Florida, Department of Civil & Environmental Engineering, Tampa, United States, (2)University of Maryland Baltimore County / NASA Goddard Space Flight Center, Greenbelt, United States, (3)Asian Disaster Preparedness Center, Bangkok, Thailand, (4)NASA Goddard SFC, Global Modeling and Assimilation Office, Greenbelt, United States
Realistic Flood Modelling Framework for Kathmandu Valley in the Face of Rapid Urbanization and Changing Climate (1982228)
Khem Raj Regmi, University of Memphis, Department of Civil, Construction, and Environmental Engineering, Memphis, United States and Ishwar Joshi, Utah State University, Department of Civil and Environmental Engineering, Logan, United States
Integrating hydrologic and climate modeling in urban water supply and sanitation systems resilience assessment frameworks: A case study in Bangkok, Thailand (1991756)
Maria Anjelica Ancheta, Asian Institute of Technology, Water Engineering and Management (WEM), Pathum Thani, Thailand, Sangam Shrestha, Asian Institute of Technology, Water Engineering and Management (WEM), Pathumthani, Thailand, Thammarat Koottatep, Asian Institute of Technology, Department of Energy, Environment and Climate Change, Pathum Thani, Thailand and Mohana Sundaram Shanmugam, Asian Institute of Technology, Civil and Infrastructure Engineering, Pathum Thani, Thailand
Assessment of Imputation Methods for Filling Gaps in Daily Meteorological Time Series (1994163)
Aayush Gautam1, Hemanta Adhikari2, Sabin Dangol1 and Vishnu Prasad Pandey1, (1)Center for Water Resources Studies, Institute of Engineering, Tribhuvan University, Kathmandu, Nepal, (2)Department of Civil Engineering, Institute of Engineering, Tribhuvan University, Lalitpur, Nepal
