Heejun Chang
#140,438
Most Influential Person Now
Academic geographer, professor at Portland State University
Heejun Chang's AcademicInfluence.com Rankings
Heejun Changearth-sciences Degrees
Earth Sciences
#2022
World Rank
#2780
Historical Rank
Geography
#443
World Rank
#635
Historical Rank
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Earth Sciences
Heejun Chang's Degrees
- PhD Geography University of California, Santa Barbara
Why Is Heejun Chang Influential?
(Suggest an Edit or Addition)According to Wikipedia, Heejun Chang is a professor of geography and associate dean for research and graduate programs at Portland State University. Early life and education He holds a BA and a MA from the Seoul National University and obtained a PhD from the Pennsylvania State University. His research and teaching focus on water sustainability in a changing climate, land cover, and management. Chang has been leading transdisciplinary water research from a coupled natural and human system lens.
Heejun Chang's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- Spatial analysis of water quality trends in the Han River basin, South Korea. (2008) (484)
- Urban water demand modeling: Review of concepts, methods, and organizing principles (2011) (326)
- Effects of land cover, topography, and built structure on seasonal water quality at multiple spatial scales. (2012) (240)
- A review of hydrological modelling of basin-scale climate change and urban development impacts (2009) (231)
- The effects of climate change and urbanization on the runoff of the Rock Creek basin in the Portland metropolitan area, Oregon, USA (2009) (191)
- Rates of urbanisation and the resiliency of air and water quality. (2008) (189)
- Spatial and temporal changes in runoff caused by climate change in a complex large river basin in Oregon. (2010) (165)
- Effects of Urban Spatial Structure, Sociodemographics, and Climate on Residential Water Consumption in Hillsboro, Oregon 1 (2010) (165)
- Long‐term trend of precipitation and runoff in Korean river basins (2008) (149)
- Impact of climate variation and change on Mid-Atlantic Region hydrology and water resources (2000) (131)
- Spatial Variations of Single-Family Residential Water Consumption in Portland, Oregon (2010) (128)
- Comparative streamflow characteristics in urbanizing basins in the Portland Metropolitan Area, Oregon, USA (2007) (126)
- Defining Extreme Events: A Cross‐Disciplinary Review (2018) (123)
- Valuing ecological systems and services (2011) (119)
- Interdependent Infrastructure as Linked Social, Ecological, and Technological Systems (SETSs) to Address Lock‐in and Enhance Resilience (2018) (112)
- Spatial variations of summer precipitation trends in South Korea, 1973–2005 (2007) (112)
- Assessment of freshwater ecosystem services in the Tualatin and Yamhill basins under climate change and urbanization (2014) (111)
- Spatial and Temporal Variations of Water Quality in the Han River and Its Tributaries, Seoul, Korea, 1993–2002 (2005) (109)
- Pluvial flood risk and opportunities for resilience (2018) (100)
- Potential Impacts of Climate Change on Flood-Induced Travel Disruptions: A Case Study of Portland, Oregon, USA (2010) (95)
- Quantifying Uncertainty in Urban Flooding Analysis Considering Hydro-Climatic Projection and Urban Development Effects (2011) (95)
- Climate Change, Land‐Use Change, and Floods: Toward an Integrated Assessment (2008) (94)
- What is responsible for increasing flood risks? The case of Gangwon Province, Korea (2009) (83)
- Potential changes in Korean water resources estimated by high-resolution climate simulation (2008) (81)
- Assessment of future runoff trends under multiple climate change scenarios in the Willamette River Basin, Oregon, USA (2011) (80)
- Impacts of Climate Change and Urban Development on Water Resources in the Tualatin River Basin, Oregon (2011) (75)
- Spatial Analysis of Water Use in Oregon, USA, 1985–2005 (2009) (74)
- Identifying the Relationships Between Urban Water Consumption and Weather Variables in Seoul, Korea (2009) (74)
- Landscape and anthropogenic factors affecting spatial patterns of water quality trends in a large river basin, South Korea (2018) (72)
- Basin Hydrologic Response to Changes in Climate and Land Use: the Conestoga River Basin, Pennsylvania (2003) (70)
- Toward a formal definition of water scarcity in natural‐human systems (2013) (70)
- THE EFFECTS OF CLIMATE CHANGE ON STREAM FLOW AND NUTRIENT LOADING 1 (2001) (69)
- Local landscape predictors of maximum stream temperature and thermal sensitivity in the Columbia River Basin, USA. (2013) (67)
- Water Quality Impacts of Climate and Land Use Changes in Southeastern Pennsylvania* (2004) (66)
- Land-use, temperature, and single-family residential water use patterns in Portland, Oregon and Phoenix, Arizona (2012) (66)
- Valuing water quality in urban watersheds: A comparative analysis of Johnson Creek, Oregon, and Burnt Bridge Creek, Washington (2014) (65)
- Uncertainty assessment of climate change impacts for hydrologically distinct river basins (2012) (65)
- Modeling the impact of land use and climate change on neighborhood-scale evaporation and nighttime cooling: A surface energy balance approach (2011) (64)
- Why Land Planners and Water Managers Don't Talk to One Another and Why They Should! (2013) (64)
- Ecosystem services of streams and rivers (2016) (64)
- Selection of hydrologic modeling approaches for climate change assessment: A comparison of model scale and structures (2012) (62)
- Climate change and water‐related ecosystem services: impacts of drought in california, usa (2016) (55)
- Sensitivity of Urban Water Consumption to Weather and Climate Variability at Multiple Temporal Scales: The Case of Portland, Oregon (2014) (54)
- Multi-scale analysis of oxygen demand trends in an urbanizing Oregon watershed, USA. (2008) (51)
- Finding water scarcity amid abundance using human–natural system models (2017) (51)
- Microplastics in freshwater: A global review of factors affecting spatial and temporal variations. (2021) (50)
- Climate change impacts on spatial patterns in drought risk in the Willamette River Basin, Oregon, USA (2012) (48)
- Climate change, urban development, and community perception of an extreme flood: A case study of Vernonia, Oregon, USA (2014) (46)
- Assessment of urban flood vulnerability using the social-ecological-technological systems framework in six US cities (2021) (44)
- Land cover, climate, and the summer surface energy balance in Phoenix, AZ, and Portland, OR (2012) (44)
- Water quality during winter storm events in Spring Creek, Pennsylvania USA (2005) (43)
- Water resource impacts of climate change in southwestern Bulgaria (2002) (41)
- Tradeoffs Between Water Conservation and Temperature Amelioration In Phoenix and Portland: Implications For Urban Sustainability (2012) (41)
- Hydroclimatological response to dynamically downscaled climate change simulations for Korean basins (2010) (40)
- Hydrologic Impacts of Climate Change in the Upper Clackamas River Basin, Oregon, USA (2007) (40)
- Recent research approaches to urban flood vulnerability, 2006–2016 (2017) (39)
- Spatial variability of the response to climate change in regional groundwater systems – Examples from simulations in the Deschutes Basin, Oregon (2013) (39)
- Relationships between environmental governance and water quality in a growing metropolitan area of the Pacific Northwest, USA (2014) (37)
- Spatial analysis of urban flooding and extreme heat hazard potential in Portland, OR (2019) (36)
- Developing knowledge systems for urban resilience to cloudburst rain events (2019) (36)
- Vulnerability of Water Systems to the Effects of Climate Change and Urbanization: A Comparison of Phoenix, Arizona and Portland, Oregon (USA) (2013) (34)
- Spatial Analysis of Annual Runoff Ratios and their Variability Across the Contiguous U.S. (2014) (33)
- Socio-hydrology with hydrosocial theory: two sides of the same coin? (2020) (33)
- Spatial Patterns of March and September Streamflow Trends in Pacific Northwest Streams, 1958–2008 (2012) (33)
- Analysis of Long-Term Climate Change on Per Capita Water Demand in Urban Versus Suburban Areas in the Portland Metropolitan Area, USA (2016) (32)
- An Exploratory Path Analysis of Attitudes, Behaviors and Summer Water Consumption in the Portland Metropolitan Area (2016) (32)
- Spatial analysis of landscape and sociodemographic factors associated with green stormwater infrastructure distribution in Baltimore, Maryland and Portland, Oregon. (2019) (31)
- Fracturing dams, fractured data: Empirical trends and characteristics of existing and removed dams in the United States (2018) (31)
- Spatial analysis of graffiti in San Francisco (2014) (29)
- A social-ecological-technological systems framework for urban ecosystem services (2022) (29)
- Determinants of single family residential water use across scales in four western US cities. (2017) (27)
- Urbanization and floods in the Seoul Metropolitan area of South Korea: What old maps tell us (2019) (26)
- Improving Higher-Order Thinking and Knowledge Retention in Environmental Science Teaching (2014) (26)
- Urban water consumption and weather variation in the Portland, Oregon metropolitan area (2014) (24)
- Full title: Urban flood risk and green infrastructure: Who is exposed to risk and who benefits from investment? A case study of three U.S. Cities (2022) (24)
- Precipitation Intensity Trend Detection using Hourly and Daily Observations in Portland, Oregon (2017) (22)
- Water Supply, Demand, and Quality Indicators for Assessing the Spatial Distribution of Water Resource Vulnerability in the Columbia River Basin (2013) (22)
- A Simplified Basin Model For Simulating Runoff: The Struma River GIS (2001) (22)
- Winter precipitation intensity and ENSO/PDO variability in the Willamette Valley of Oregon (2009) (21)
- A review of spatial statistical approaches to modeling water quality (2019) (21)
- Growing Cities Depend on Ecosystem Services (2012) (21)
- Water Conservation (2020) (20)
- Effects of runoff sensitivity and catchment characteristics on regional actual evapotranspiration trends in the conterminous US (2013) (20)
- Using spatially explicit indicators to investigate watershed characteristics and stream temperature relationships. (2016) (20)
- Development of Future Land Cover Change Scenarios in the Metropolitan Fringe, Oregon, U.S., with Stakeholder Involvement (2014) (18)
- Effects of land use change, wetland fragmentation, and best management practices on total suspended sediment concentrations in an urbanizing Oregon watershed, USA. (2021) (18)
- Assessing mechanisms of climate change impact on the upland forest water balance of the Willamette River Basin, Oregon (2017) (17)
- Using GIS-based spatial analysis to determine urban greenspace accessibility for different racial groups in the backdrop of COVID-19: a case study of four US cities (2021) (17)
- Dynamics of wet‐season turbidity in relation to precipitation, discharge, and land cover in three urbanizing watersheds, Oregon (2019) (16)
- Space and time dynamics of urban water demand in Portland, Oregon and Phoenix, Arizona (2015) (16)
- Effects of Land Cover Change on Water Quality in Urban Streams at Two Spatial Scales (2014) (16)
- Uncovering the Influence of Household Sociodemographic and Behavioral Characteristics on Summer Water Consumption in the Portland Metropolitan Area (2014) (15)
- Impacts of climate variability and change on water temperature in an urbanizing Oregon basin, USA (2011) (14)
- Stressors and Strategies for Managing Urban Water Scarcity: Perspectives from the Field (2015) (13)
- Socio-hydrology: an interplay of design and self-organization in a multilevel world (2020) (13)
- Understanding Urban Flood Resilience in the Anthropocene: A Social–Ecological–Technological Systems (SETS) Learning Framework (2020) (13)
- Residents' perception of flood risk and urban stream restoration using multi‐criteria decision analysis (2020) (13)
- Spatial and temporal variations of microplastic concentrations in Portland's freshwater ecosystems. (2022) (13)
- Facilitating collaborative urban water management through university-utility cooperation (2016) (12)
- Environmental and spatial factors affecting surface water quality in a Himalayan watershed, Central Nepal (2021) (12)
- Present and Future Flood Hazard in the Lower Columbia River Estuary: Changing Flood Hazards in the Portland‐Vancouver Metropolitan Area (2020) (12)
- Comparing the functional recognition of aesthetics, hydrology, and quality in urban stream restoration through the framework of environmental perception (2019) (11)
- A community-engaged approach to transdisciplinary doctoral training in urban ecosystem services (2020) (11)
- Spatial characteristics and frequency of citizen-observed pluvial flooding events in relation to storm size in Portland, Oregon (2019) (11)
- What explains spatial variations of COVID-19 vaccine hesitancy?: a social-ecological-technological systems approach (2022) (11)
- Resident perceptions of urban stream restoration and water quality in South Korea (2018) (10)
- Assessing the Impacts of Climate Change, Urbanization, and Filter Strips on Water Quality Using SWAT (2014) (9)
- Relationships between environmental governance and water quality in growing metropolitan areas: a synthetic view through the coupled natural and human system lens (2013) (9)
- Climate Change and Freshwater Resources in Oregon (2010) (9)
- Detecting change in precipitation indices using observed (1977–2016) and modeled future climate data in Portland, Oregon, USA (2020) (9)
- Relation Between Stream Temperature and Landscape Characteristics Using Distance Weighted Metrics (2018) (8)
- Sources of contaminated flood sediments in a rural–urban catchment: Johnson Creek, Oregon (2018) (8)
- Active rock glaciers of the contiguous United States: geographic information system inventory and spatial distribution patterns (2021) (7)
- Effects of Stormwater Green Infrastructure on Watershed Outflow: Does Spatial Distribution Matter? (2019) (7)
- Watershed Response to Climate Change and Fire-Burns in the Upper Umatilla River Basin, USA (2017) (7)
- Optimization of PRISM Parameters and Digital Elevation Model Resolution for Estimating the Spatial Distribution of Precipitation in South Korea (2012) (6)
- Future Flooding Impacts on Transportation Infrastructure and Traffic Patterns Resulting from Climate Change (2011) (6)
- Spatially-explicit assessment of flood risk caused by climate change in South Korea (2013) (5)
- Building Water-Efficient Cities (2019) (5)
- Modeling the system dynamics of irrigators’ resilience to climate change in a glacier-influenced watershed (2021) (5)
- Climate Change and Stream Temperature in the Willamette River Basin: Implications for Fish Habitat (2018) (5)
- Cities as Place for Climate Mitigation and Adaptation : A Case Study of Portland, Oregon, USA (2010) (5)
- Geographical analysis of commercial motor vehicle hazardous materials crashes on the Oregon state highway system (2011) (5)
- Potential climate-induced runoff changes and associated uncertainty in four Pacific Northwest estuaries (2012) (4)
- Dreams and Migration in South Korea’s Border Region: Landscape Change and Environmental Impacts (2019) (4)
- Putting space into modeling landscape and water quality relationships in the Han River basin, South Korea (2020) (4)
- Potential Impacts of Climate Change on Urban Flooding: Implications for Transportation Infrastructure and Travel Disruption (2010) (4)
- Land Use Change, Extreme Precipitation Events, and Flood Damage in South Korea: A Spatial Approach (2020) (4)
- Relative impacts of climate change and land cover change on streamflow using SWAT in the Clackamas River Watershed, USA (2020) (3)
- Quantifying and Analyzing the Costs of Climate Change on Local Transportation Infrastructure: A Case Study from Portland, Oregon (2010) (3)
- Socio-spatial analysis of residential water demand in Mexico City (2021) (2)
- Science and Practice of Integrated River Basin Management : Lessons from North and Central American UNESCO-HELP Basins (2010) (2)
- Effects of Climate Change and Population. Growth on Water Resources in Korea (2007) (2)
- Climate Elasticity of Korean Streamflows (2010) (2)
- Relationship between population and changes in Warmth and Coldness indices in South Korea (2012) (2)
- Green infrastructure implementation and performance: Lessons learned from nine US and Latin American cities in the Urban Resilience to Extremes Sustainability Research Network (UREx SRN) (2019) (1)
- Hydrologic Modeling of Urbanizing Oregon Basins for Water-Related Ecosystem Service Assessment using SWAT (2012) (1)
- Opportunities for environmental public health action on the social determinants of health and health inequity (2015) (1)
- Seasonal variation in hydrologic performance of ecoroofs of multiple depths– a case study in Portland, Oregon, USA (2020) (1)
- Characterizing urban ecosystem services: integrating the biophysical and social dimensions of human-dominated landscapes (2014) (1)
- Transition of water quality policies in Oregon, USA and South Korea: a historical socio-hydrological approach (2021) (1)
- Rock glaciers of the contiguous United States: GIS inventory and spatial distribution patterns (2020) (1)
- Putting Climate Change into Water Resource Management: Adaptation Efforts in the U.S., U.K., Canada, Australia, and the Netherlands (2006) (1)
- Earth ’ s Future Defining Extreme Events : A Cross-Disciplinary Review (2018) (1)
- The Right to Urban Streams: Quantitative Comparisons of Stakeholder Perceptions in Defining Adaptive Stream Restoration (2020) (1)
- Uncertainty in Urban Flooding Assessment under Climate and Land Use Change (2010) (1)
- The Role of Data Mining in Water Resources Management (2021) (1)
- The spatial relationship between patterns of disappeared streams and residential development in Portland, Oregon, USA (2022) (1)
- Effects of Antecedent Precipitation Amount and COVID-19 Lockdown on Water Quality Along an Urban Gradient (2022) (1)
- Water and Climate Change (2019) (1)
- Stream Distance-Based Geographically Weighted Regression for Exploring Watershed Characteristics and Water Quality Relationships (2022) (0)
- Climate Change Impact on Drought Risk and Uncertainty in the Willamette River Basin (2011) (0)
- Water Ecosystem Services: Rapid land use change impacts on coastal ecosystem services: a South Korean case study (2015) (0)
- Supplementary material to "Rock glaciers of the contiguous United States: GIS inventory and spatial distribution patterns" (2020) (0)
- Effects of Climate Change on Water Quality in the Yaquina Estuary, Oregon (2011) (0)
- POTENTIAL IMPACTS OF CLIMATE CHANGE ON URBN FLOODING (2009) (0)
- Effects of landscape characteristics, anthropogenic factors, and seasonality on water quality in Portland, Oregon (2022) (0)
- Assessment of Uncertainty in Hydrologic Projection for Distinct River Basins under Climate Change (2010) (0)
- Spatial and Temporal Patterns in the Influence of Land Use on Water Quality in Five Portland Area Creeks Representing Differing Levels of Urbanization (2011) (0)
- Remediation of Heavy Metal Polluted Agricultural Field with Spent Mushroom Media (2016) (0)
- GEOGRAPHY 210 Introduction to Physical Geography (2005) (0)
- A Geospatial Tool for Wetland Prioritization at the Watershed Scale (2015) (0)
- Watershed Resilience to Climate Change: Hysteresis behaviors of Discharge-Turbidity Concentration Relationship (2018) (0)
- A roadmap for expanding U.S.-ROK alliance cooperation Climate change (2009) (0)
- Urban Water as a Coupled System: Interactions and Feedbacks Among Climate, Land Cover, Water Governance (2013) (0)
- Event Scale Analysis of Streamflow Response to Wildfire in Oregon, 2020 (2022) (0)
- Assessment of the Hydrologic Response to Climate Change in the Upper Deschutes River Basin, Central Oregon (2011) (0)
- impacts A review of hydrological modelling of basin-scale climate change and urban development (2011) (0)
- Quantifying hydrological uncertainty for rain- and snow-dominated watersheds with adaptation strategy. (2010) (0)
- Spatial and Temporal Variations of Flood hazards in Korea (2006) (0)
- Getting Salmon Back in Salmon Creek: Systematizing Comparative Water Quality Analysis for Targeted Restoration (2013) (0)
- Spatial Analysis of Green Streets in the City of Portland, Oregon (2018) (0)
- The June 2021 Extreme Heat Event in Portland, OR, USA: Its Impacts on Ecosystems and Human Health and Potential Adaptation Strategies (2021) (0)
- The Oregon Water Conference 2011: evaluating and managing water resources in a climate of uncertainty (2011) (0)
- Rapid Land Use Changes and Ecosystem Services Shift in Coastal Areas: A Case Study of Korea (2015) (0)
- Relating Social, Ecological, and Technological Vulnerability to Future Flood Exposure at Two Scales in Four U.S. Cities (2022) (0)
- Engaging Stakeholders in Ecosystem Service Assessment Under Climate Change and Urban Development Scenarios (2013) (0)
- Correction to: A community‑engaged approach to transdisciplinary doctoral training in urban ecosystem services (2020) (0)
- Portland-Vancouver ULTRA-Ex: Evaluating Relationships Between Governance and Environmental Quality in Urban Ecosystems (2013) (0)
- Understanding perspectives on climate hazards, water management, and adaptive transformation in an exurban community (2022) (0)
- Climate Change and Shifts in Water Related Ecosystem Services in the Tualatin and Yamhill River Basins (2011) (0)
- Water as a Complex System: Understanding the Dynamics in a Changing Environment (2009) (0)
- Spatially-explicit assessment of flood risk caused by climate change in South Korea (2013) (0)
- Articles : Economic Impacts of Climate Change on Water Resources: Toward Spatially-Oriented Impact Assessmemts (2007) (0)
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Heejun Chang is affiliated with the following schools:
