Hydro-Climate Symposium

Oral

397447 - Emerging Issues on Climate Change Adaptation Studies at Watershed Scale

Wednesday, June 6
10:30 AM - 12:00 PM
Location: Lake Superior B
Co-Authors: J.H Park, Republic of Korea – K-water Institute; Y.T Hur, Republic of Koreaw – K-water Institute; M.L.. Kavvas, USA – UC Davis

Water-related disasters are being increased in most regions across the world. Water and environmental resources are most vulnerable to climate change caused by floods, droughts and changing precipitation patterns. For this reason, GCMs and scenarios are popularly used for climate change impact studies in order to provide a fundamental information for developing appropriate adaptation measures to various sectors. However, the number of climate change adaption studies have limited to put into practice due to several issues such as risks and uncertainties associated with climate change. This study addresses some fundamental issues on climate change studies at watershed scale with respect to downscaling from GCMs outputs, GCMs/Scenarios uncertainty, and frequency analysis for designing of hydraulic structures and water resources managements. It is also suggested some alternatives and methodologies in order to overcome these issues for developing climate change adaptation measures at watershed scale based some fundamental research studies. For downscaling of GCMs outputs, it is investigate the spatial variability of precipitation constructed by statistical and dynamical downscaling methods. Also, it is suggested an alternative methods to use both statistical and dynamical downscaling methods. GCMs/Scenarios uncertainties are investigated based on comparisons between observations and GCM projections during recent period at several watersheds in Northern California. Finally, some issues on precipitation and flood frequency analyses based on historical observations with a single probability density are addressed and then some alternatives using downscaled data from GCMs projections are suggested in order to implement for designing of hydraulic structures. "Acknowledgements: This work is supported by the Korea Agency for Infrastructure Technology Advancement(KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 18AWMP-B083066-05)".

Su-Hyung Jang

Principal Researcher
K-water Institute

Suhyung Jang PhD
Principal Researcher
Water Resources Research Center, K-water Institute, South Korea

Professional Experience
-7/2014-present, Principal Researcher, Water Resources Research Center, K-water Institute, South Korea
- 6/2008-6/2014, Postdoctoral Researcher, Hydrologic Research Laboratory, UC Davis, Davis, USA
- 6/2007-5/2008, Postdoctoral Researcher, Research Center for Disaster Prevention Science and Technology, Korea University, Seoul, Korea
- 3/2007-5/2007, Assistant Manager, Hydrological Engineering Center(HSC), Ilsan, Korea
- 3/2006-2/2007, Postdoctoral Researcher, Research Center for Disaster Prevention Science and Technology, Korea University, Seoul, Korea
- 3/2002-2/2006, Graduate Assistant, Research Center for Disaster Prevention Science and Technology, Korea University, Seoul, Korea
- 2/2001-2/2002, Water Resources Engineer, Division of Water Resources, Korea Engineering Consultants Corp

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