HEEJUN CHANG

Associate Professor Heejun Chang

Department of Geography
Portland State University
P.O. Box 751
Portland,OR 97207

Tel: (503) 725-3162
Fax: (503) 725-3166
Email: changh@pdx.edu

AWARDS

Outstanding Researcher Award. 2007. Columbia-Willamette Chapter of Sigma Xi
Best Poster Award. 2006. International Water Association

My teaching and research interests lie in hydrology and spatial analysis. In hydrology and water resources, I am interested in examining the human modification of the hydrologic system. I examine the complex interactions among climate change, land use change, and water management that drive major changes in water quantity and quality. To understand and model such a complex system, I use an integrated approach that embraces biophysical sciences, social sciences, and information sciences. Hence the use of geographic information technology including geocomputational methods and visual spatial analysis is essential to conduct my research and teaching.

NW Flood
NW Resources
Bend

"When there is no road, Create one and move forward. Hope starts there." (Koo Sang, Philosopher)

SELECTED PUBLICATIONS

Praskievicz, S.*, and Chang, H. (2009) A review of hydrologic modeling of basin-scale climate chagne and urban development impacts, Progress in Physical Geography 33(5): 650-671.

Chang, H., Franczyk, J.*, and Kim, C. (2009). What is responsible for increasing flood risks? The case of Gangwon Province, Korea. Natural Hazards 48(3): 339-354.

Franczyk, J.* and Chang, H. (2009) Spatial analysis of water use in Oregon, USA, 1985-2005. Water Resources Management 23(4): 755-774.

Chang, H., and Franczyk, J.* (2008). Climate change, land use change and floods: Toward an integrated assessment. Geography Compass 2(5): 1549-1579.

Chang, H. (2008). Spatial analysis of water quality trends in the Han River basin, South Korea. Water Research 42: 3285-3304 doi:10.1016/j.watres.2008.04.006.

Duh, J. Shandas, V., Chang, H., and George, L. (2008). Rates of urbanization and the resilience of air and water quality. Science of the Total Environment.400(1-3): 238-256.

Boeder, M.* and Chang, H. (2008) Multi-scale analysis of oxygen demand trend in an urbanizing Oregon watershed. Journal of Environmental Management 87(4): 567-581.

Levell, A.* and H. Chang (2008) Monitoring the channel process of a stream restoration project in an urbanizing watershed: A case study of Kelley Creek, Oregon, USA. River Research and Applications 24(2): 169-182.

Chang, H., J. Franczyk,* I-S Im, W-T. Kwon, D-H. Bae, and I-W. Jung (2007) Vulnerability of Korean water resources to climate change and population growth. Water Science and Technology, 56(4): 57-62.

Graves, D.* and Chang, H. (2007) Hydrologic impacts of climate change in the Upper Clackamas basin of Oregon. Climate Research 33(2): 143-157.

Chang, H. (2007) Comparative streamflow characteristics in urbanizing basins in the Portland Metropolitan Area, Oregon, USA, Hydrological Processes, 21(2): 211-222.

Chang, H. (2004) Water Quality Impacts of Climate and Land Use Changes in Southeastern Pennsylvania, The Professional Geographer, 56(2): 240-257.