Open Access. Powered by Scholars. Published by Universities.®

Geography Commons

Open Access. Powered by Scholars. Published by Universities.®

Portland State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 331 - 360 of 510

Full-Text Articles in Geography

Discourses Of Deflection: The Politics Of Framing China’S South North Water Transfer Project, Britt Crow-Miller Jan 2015

Discourses Of Deflection: The Politics Of Framing China’S South North Water Transfer Project, Britt Crow-Miller

Geography Faculty Publications and Presentations

Despite significant financial, ecological and social trade-offs, China has moved forward with constructing and operationalising the world’s largest interbasin water transfer project to date, the South-North Water Transfer Project (SNWTP). While it is fundamentally linked to broader political-economic goals within the context of China’s post-Mao development agenda, the SNWTP is frequently discussed in apolitical terms. Based on extensive discourse analysis and interviews with government officials across North China, I argue that the Chinese government is using "discourses of deflection" to present the project as politically neutral in order to serve its ultimate goal of maintaining the high economic growth rates …


Whose Urban Forest? The Political Ecology Of Foraging Urban Nontimber Forest Products, Patrick T. Hurley, Marla R. Emery, Rebecca J. Mclain, Melissa R. Poe, Brain Grabbatin, Cari L. Goetcheus Jan 2015

Whose Urban Forest? The Political Ecology Of Foraging Urban Nontimber Forest Products, Patrick T. Hurley, Marla R. Emery, Rebecca J. Mclain, Melissa R. Poe, Brain Grabbatin, Cari L. Goetcheus

Institute for Sustainable Solutions Publications and Presentations

Drawing on case studies of foraging in Philadelphia, Pennsylvania and Mt. Pleasant, South Carolina, we point to foraging landscapes and practices within diverse urban forest spaces. We examine these spaces in relation to U.S. conservation and development processes and the effects of management and governance on species valued by foragers. These case studies reveal the everyday landscapes of urban foraging and suggest that ideas about what constitutes the suite of appropriate human-environment interactions in the sustainable city are contested and accommodated in diverse ways.


Overcoming Uncertainty And Barriers To Adoption Of Blue-Green Infrastructure For Urban Flood Risk Management, Colin R. Thorne, E. C. Lawson, Connie P. Ozawa, Samantha Hamlin, Leonard A. Smith Jan 2015

Overcoming Uncertainty And Barriers To Adoption Of Blue-Green Infrastructure For Urban Flood Risk Management, Colin R. Thorne, E. C. Lawson, Connie P. Ozawa, Samantha Hamlin, Leonard A. Smith

Urban Studies and Planning Faculty Publications and Presentations

Blue-Green Infrastructure (BGI) and Sustainable Drainage Systems (SuDS) are increasingly recognised as vital components of urban flood risk management. However, uncertainty regarding their hydrologic performance and lack of confidence concerning their public acceptability create concerns and challenges that limit their widespread adoption. This paper investigates barriers to implementation of BGI in Portland, Oregon, using the Relevant Dominant Uncertainty (RDU) approach. Two types of RDU are identified: scientific RDUs related to physical processes that affect infrastructure performance and service provision, and socio-political RDUs that reflect a lack of confidence in socio-political structures and public preferences for BGI. We find that socio-political …


Geography Standard Posters: The Use Of Geography, Center For Spatial Analysis And Research. Portland State University Jan 2015

Geography Standard Posters: The Use Of Geography, Center For Spatial Analysis And Research. Portland State University

Instructional Materials

The poster looks at applying geography to interpret the past and applying geography to interpret the present and plan for the future.


Geography Standard Posters: Human Systems, Center For Spatial Analysis And Research. Portland State University Jan 2015

Geography Standard Posters: Human Systems, Center For Spatial Analysis And Research. Portland State University

Instructional Materials

The poster looks at characteristics of human populations, the complexity of earth's cultural mosaics, patterns of economic independence, patterns of human settlement, how do urban and rural areas differ, and the division and control of Earth's surface.


Let's Learn: All About Maps - Teacher Guide, Center For Spatial Analysis And Research. Portland State University, Teresa L. Bulman, Morgan Josef, Gwyneth Genevieve Mckee Manser Jan 2015

Let's Learn: All About Maps - Teacher Guide, Center For Spatial Analysis And Research. Portland State University, Teresa L. Bulman, Morgan Josef, Gwyneth Genevieve Mckee Manser

Instructional Materials

Teacher activity book. Inside you will find fun activities to help you learn about maps and how they are used in everyday life.

The student guide can be found here: https://archives.pdx.edu/ds/psu/27717


Geography Standard Posters: Places And Regions, Center For Spatial Analysis And Research. Portland State University Jan 2015

Geography Standard Posters: Places And Regions, Center For Spatial Analysis And Research. Portland State University

Instructional Materials

The poster looks at the physical and human characteristics of place, how people create regions, and the culture influences people's perceptions.


Geography Standard Posters: The World In Spatial Terms, Center For Spatial Analysis And Research. Portland State University Jan 2015

Geography Standard Posters: The World In Spatial Terms, Center For Spatial Analysis And Research. Portland State University

Instructional Materials

The poster looks at how to use maps, using mental maps, and how to analyze spatial organization.


Stream Temperature Management In The Tualatin Watershed: Is It Improving Salmonid Habitat?, Raymond Banks Hennings Nov 2014

Stream Temperature Management In The Tualatin Watershed: Is It Improving Salmonid Habitat?, Raymond Banks Hennings

Geography Masters Research Papers

The purpose of this paper is to examine the literature from scientific and governmental entities that describes the problems with elevated stream temperatures in the Tualatin basin, the actions being taken to resolve those problems, and to assess whether these actions are meeting the goal of improving salmonid habitat in the basin. Elevated stream temperatures are considered a pollutant under the US Clean Water Act (Clean Water Act 1972, as amended) because increased stream temperatures can be harmful to native aquatic biota, particularly salmonid fish species that have evolved to use cold water (IMST 2004).


Using Gist Features To Constrain Search In Object Detection, Joanna Browne Solmon Aug 2014

Using Gist Features To Constrain Search In Object Detection, Joanna Browne Solmon

Dissertations and Theses

This thesis investigates the application of GIST features [13] to the problem of object detection in images. Object detection refers to locating instances of a given object category in an image. It is contrasted with object recognition, which simply decides whether an image contains an object, regardless of the object's location in the image.

In much of computer vision literature, object detection uses a "sliding window" approach to finding objects in an image. This requires moving various sizes of windows across an image and running a trained classifier on the visual features of each window. This brute force method can …


Mapping Landscape Values: Issues, Challenges And Lessons Learned From Field Work On The Olympic Peninsula, Washington, Diane Besser, Rebecca J. Mclain, Lee Cerveny, Kelly Biedenweg, David Banis Jun 2014

Mapping Landscape Values: Issues, Challenges And Lessons Learned From Field Work On The Olympic Peninsula, Washington, Diane Besser, Rebecca J. Mclain, Lee Cerveny, Kelly Biedenweg, David Banis

Geography Faculty Publications and Presentations

In order to inform natural resource policy and land management decisions, landscape values mapping (LVM) is increasingly used to collect data about the meanings that people attach to places and the activities associated with those places. This type of mapping provides geographically referenced data on areas of high density of values or associated with different types of values. This article focuses on issues and challenges that commonly occur in LVM, drawing on lessons learned in the US Forest Service Olympic Peninsula Human Ecology Mapping Project. The discussion covers choosing a spatial scale for collecting data, creating the base map, developing …


Where Do Mount Baker Snoqualmie National Forest Visitors Go And Which Roads Do They Use To Get There? An Analysis Of The Spatial Data From The 2013 Sustainable Roads Workshops, Rebecca J. Mclain, David Banis, Alexa Todd, Mike Psaris May 2014

Where Do Mount Baker Snoqualmie National Forest Visitors Go And Which Roads Do They Use To Get There? An Analysis Of The Spatial Data From The 2013 Sustainable Roads Workshops, Rebecca J. Mclain, David Banis, Alexa Todd, Mike Psaris

Geography Faculty Publications and Presentations

This report provides an overview of the key patterns that emerged from the spatial analyses of the destination and route data collected during the 2013 Sustainable Roads workshops on the Mount Baker Snoqualmie (MBS) National Forest. We excluded the pilot workshop data from the analyses because a somewhat different process was used to collect the mapped data. The data used in the analysis was collected from 262 participants in eight workshops (Bellingham, Sedro-Woolley, Darrington, Monroe, Everett, Seattle, Issaquah, Enumclaw). During the workshops, participants mapped up to eight destinations of importance to them, and in most cases, also mapped the routes …


Impact Of Soil Moisture–Atmosphere Interactions On Surface Temperature Distribution, Alexis Berg, Benjamin R. Lintner, Kirsten L. Findell, Sergey Malyshev, Paul C. Loikith, Pierre Gentine May 2014

Impact Of Soil Moisture–Atmosphere Interactions On Surface Temperature Distribution, Alexis Berg, Benjamin R. Lintner, Kirsten L. Findell, Sergey Malyshev, Paul C. Loikith, Pierre Gentine

Geography Faculty Publications and Presentations

Understanding how different physical processes can shape the probability distribution function (PDF) of surface temperature, in particular the tails of the distribution, is essential for the attribution and projection of future extreme temperature events. In this study, the contribution of soil moisture–atmosphere interactions to surface temperature PDFs is investigated. Soil moisture represents a key variable in the coupling of the land and atmosphere, since it controls the partitioning of available energy between sensible and latent heat flux at the surface. Consequently, soil moisture variability driven by the atmosphere may feed back onto the near-surface climate—in particular, temperature. In this study, …


Factors Of Inclusion And Exclusion To Housing: An Exploratory Study, Jonathan Abbott, Whitman A. Bouton, Jordan Christensen, Brian Dicarlo, Rylan Firth, Erin Mercer, Erica Molina Rodriguez, Andrew Sneddon, Chad Tucker, Brea Walters, Austin Zeitz Apr 2014

Factors Of Inclusion And Exclusion To Housing: An Exploratory Study, Jonathan Abbott, Whitman A. Bouton, Jordan Christensen, Brian Dicarlo, Rylan Firth, Erin Mercer, Erica Molina Rodriguez, Andrew Sneddon, Chad Tucker, Brea Walters, Austin Zeitz

Asset Mapping: Community Geography Project

Portland State University: Spring 2014 Senior Capstone Neighborhood Equity Study.


Near-Surface Internal Melting: A Substantial Mass Loss On Antarctic Dry Valley Glaciers, Matthew J. Hoffman, Andrew G. Fountain, Glen E. Liston Apr 2014

Near-Surface Internal Melting: A Substantial Mass Loss On Antarctic Dry Valley Glaciers, Matthew J. Hoffman, Andrew G. Fountain, Glen E. Liston

Geology Faculty Publications and Presentations

The McMurdo Dry Valleys, southern Victoria Land, East Antarctica, are a polar desert, and melt from glacial ice is the primary source of water to streams, lakes and associated ecosystems. Previous work found that to adequately model glacier ablation and subsurface ice temperatures with a surface energy-balance model required including the transmission of solar radiation into the ice. Here we investigate the contribution of subsurface melt to the mass balance of (and runoff from) Dry Valley glaciers by including a drainage process in the model and applying the model to three glacier sites using 13years of hourly meteorological data. Model …


Bicycle Facilities And The Uptake Of Air Pollution By Active Travelers, Alexander Y. Bigazzi, Miguel A. Figliozzi, James F. Pankow, Wentai Luo, Lorne M. Isabelle Mar 2014

Bicycle Facilities And The Uptake Of Air Pollution By Active Travelers, Alexander Y. Bigazzi, Miguel A. Figliozzi, James F. Pankow, Wentai Luo, Lorne M. Isabelle

Civil and Environmental Engineering Faculty Publications and Presentations

Outlines the research of urban bicyclists' facilities and the uptake of air pollution by active travelers in urban Portland, OR. Outlines the research goals, beginning data collection methods, intake/uptake, modeling results, conclusions and the next steps for future work with the collected data set of direct uptake measurements.


Development Of Future Land Cover Change Scenarios In The Metropolitan Fringe, Oregon, U.S., With Stakeholder Involvement, Heejun Chang, Roberrt W. Hoyer Mar 2014

Development Of Future Land Cover Change Scenarios In The Metropolitan Fringe, Oregon, U.S., With Stakeholder Involvement, Heejun Chang, Roberrt W. Hoyer

Geography Faculty Publications and Presentations

We describe a future land cover scenario construction process developed under consultation with a group of stakeholders from our study area. We developed a simple geographic information system (GIS) method to modify a land cover dataset and then used qualitative data extracted from the stakeholder storyline to modify it. These identified variables related to our study area’s land use regulation system as the major driver in the placement of new urban growth on the landscape; and the accommodation of new population as the determinant of its growth rate. The outcome was a series of three scenario maps depicting a gradient …


Model Lessons About Geography And The United States Civil War, Amy Fifth-­Lince, Tabitha M. Richards, Alan Town, Jack Gordon, Julie Johnson, Sean Stewart, Mark S. Walls, Margaret Skyberg, Melanie Mays, Merx Lavine, Steve Reeves, Ryan Mcwayne, Colleen Pallari Jan 2014

Model Lessons About Geography And The United States Civil War, Amy Fifth-­Lince, Tabitha M. Richards, Alan Town, Jack Gordon, Julie Johnson, Sean Stewart, Mark S. Walls, Margaret Skyberg, Melanie Mays, Merx Lavine, Steve Reeves, Ryan Mcwayne, Colleen Pallari

Instructional Materials

Model lessons about geography and the United States Civil War to use with The Student Atlas of Oregon.


Model Lessons About Geography And Outdoor School, Tammy Bryant, Lauren Smolensky, Sarah Cochran, Brenda Mahler, April Logsdon, Shanna Davis, Jalia Campbell, Kimberly Nichols, Sean Stewart, Lauren Collins, Beth Chitwood, Joan Swafford, Lauriel Amoroso, Shaphan Thomas, Beth Oehler, Jen Dimaggio Jan 2014

Model Lessons About Geography And Outdoor School, Tammy Bryant, Lauren Smolensky, Sarah Cochran, Brenda Mahler, April Logsdon, Shanna Davis, Jalia Campbell, Kimberly Nichols, Sean Stewart, Lauren Collins, Beth Chitwood, Joan Swafford, Lauriel Amoroso, Shaphan Thomas, Beth Oehler, Jen Dimaggio

Instructional Materials

Model lessons about geography and Outdoor School to use with The Student Atlas of Oregon.


Food Deserts And Migrant Farmworkers: Assessing Food Access In Oregon's Willamette Valley, Katie Grauel, Kimberlee J. Chambers Jan 2014

Food Deserts And Migrant Farmworkers: Assessing Food Access In Oregon's Willamette Valley, Katie Grauel, Kimberlee J. Chambers

Geography Faculty Publications and Presentations

Food insecurity, often correlated with “food deserts,” affects migrant and seasonal farmworkers (MSFW) at greater rates than other populations. Our research evaluates the food desert experiences of MSFW communities in Oregon's Willamette Valley. Through GIS mapping, interviews with MSFW, and food retailer inventories, our research helps elucidate the degree to which the geographical distribution of food retailers and the products they carry affects MSFW. Access to food retailers was assessed for distances of 0.25, 1.5, 5, and 10 miles. Mapping locations of registered MSFW labor camps (n = 62) and food retailers (n = 215) in the Willamette Valley revealed …


Rivers Of Steel: The Economic Development Of Seattle During The Rail Age, 1870-1920, Neil T. Loehlein Jan 2014

Rivers Of Steel: The Economic Development Of Seattle During The Rail Age, 1870-1920, Neil T. Loehlein

Geography Masters Research Papers

The Pacific Northwest experienced massive urban development and growth in population from 1870 to 1920. The railroad was a key factor contributing to the influx of people and expansion of the built environment. The rival port towns around the Washington Territory’s Puget Sound all strove to become the dominant center of trade. As the pattern of railroads expanded, this new mode of transportation would have a significant effect on which ports would prosper and which would languish. This paper will show that the rail network that developed between 1873 and 1893 would come to favor Seattle at a critical point …


Property Tax Rates As An Indicator Of Neighborhood Change: An Examination Of An Unanticipated Effect Of Measure 50 In The City Of Portland, Sonia N. Singh Jan 2014

Property Tax Rates As An Indicator Of Neighborhood Change: An Examination Of An Unanticipated Effect Of Measure 50 In The City Of Portland, Sonia N. Singh

Geography Masters Research Papers

Gentrification and stagnation are two prominent themes in neighborhood development today. The city or Portland, Oregon is experiencing both of these neighborhood stages in different neighborhoods. In Oregon a property tax measure passed in 1997, Measure 50, caused property tax rates to vary by location according to changes in real market values over time. Recent analysis has revealed that property tax rates in Portland follow the spatial patterns of gentrification and stagnation in Portland, and therefore could be contributing neighborhood change. Differential property tax rates have shown to influence mobility and homeownership, two factors of neighborhood change. In order to …


The Risks Of The Rose City: Assessing The Social Vulnerability Of Communities To Multiple Environmental Hazards In The Portland Metropolitan Area, Daniel R. Logan Jan 2014

The Risks Of The Rose City: Assessing The Social Vulnerability Of Communities To Multiple Environmental Hazards In The Portland Metropolitan Area, Daniel R. Logan

Geography Masters Research Papers

In the past three decades, research in the geography of hazards and disasters has expanded beyond the response to hazard events and incorporated the concepts of preparedness, recovery, and mitigation. These issues require a complete understanding of the vulnerability of places to hazards, not only in regards to hazard characteristics but in regards to social and economic conditions as well. This paper offers a case study in hazard exposure and social vulnerability analysis which incorporates the methodology of two previous studies on the same topics. A geographic information system was used to determine vulnerable areas and populations exposed to five …


Industrial Decline In An Industrial Sanctuary Portland’S Central Eastside Industrial District, 1981-2014, Allison Jones Jan 2014

Industrial Decline In An Industrial Sanctuary Portland’S Central Eastside Industrial District, 1981-2014, Allison Jones

Geography Masters Research Papers

This study examines the evolution of the industrial landscape of Portland, Oregon’s Central Eastside Industrial District (CEID) from the initial declaration in 1981 as an ‘industrial sanctuary’ to the present day. The study recreates the historical landscape of 1981, mapping historical land use data from archived Sanborn maps in GIS. This was then compared to the current landscape of 2014, wherein data gathered from field visits, and online, public land use databases was mapped using GIS.

This paper addresses the recent transformation, looking at patterns within the physical and functional realm; and observing how these changes have influenced the character …


The Cully Park Inter-Tribal Gathering Garden: Place-Making Through Indigenous Eco-Cultural Reclamation, Randall Morris Jan 2014

The Cully Park Inter-Tribal Gathering Garden: Place-Making Through Indigenous Eco-Cultural Reclamation, Randall Morris

Geography Masters Research Papers

Portland's history and geography are patterned, like any city, by spatial imaginings both utopian and dystopian. This examination of the raw landscape of the city’s nascent garden space in Cully Park is an attempt to research a third manifestation of space, one that might be called heterotopia. This research into the Inter-Tribal Gathering Garden is a search for a more complete accounting of place, one which also acknowledges the variety of non-human agencies (a list which would include streets, planning documents, various plants, historical accounts, and even the consistent boundaries of the space itself) found in all heterogeneous …


The Cost Of Hauling Timber: A Comparison Of Raster- And Vector- Based Travel-Time Estimates In Gis, Sara M. Loreno Jan 2014

The Cost Of Hauling Timber: A Comparison Of Raster- And Vector- Based Travel-Time Estimates In Gis, Sara M. Loreno

Geography Masters Research Papers

The cost of transporting forest products from harvest site to processing facility is a critical indicator of timber project feasibility. In order to accurately assess these timber haul costs, least-cost travel-time estimates among the site and the facility can be estimated using vector- or raster-based GIS methods. This study explores the applicability of both the raster- and vector-techniques within a variety of landscapes, including forested areas where comprehensive transportation data is limited. A comparison between the travel-time estimates derived from both methods was performed on three study sites using real-world data. The comparison also tested the effect of resolution on …


Values Mapping With Latino Forest Users: Contributing To The Dialogue On Multiple Land Use Conflict Management, Kelly Biedenweg, Lee Cerveny, Rebecca J. Mclain Jan 2014

Values Mapping With Latino Forest Users: Contributing To The Dialogue On Multiple Land Use Conflict Management, Kelly Biedenweg, Lee Cerveny, Rebecca J. Mclain

Institute for Sustainable Solutions Publications and Presentations

Values mapping that represents how humans associate with natural environments is useful for several purposes, including recognizing and addressing different perceptions of natural resource ownership and management priorities, documenting traditional ecological knowledge, and spatially identifying the public's perception of economic and non-economic services provided by natural resources (McLain et al. 2013). The majority of this work has been conducted in developing countries and with disenfranchised communities, where participatory mapping associated with natural resource management is more widely practiced. As access to GIS technology has expanded, however, several projects have tested the benefits of values mapping for natural resource management decisions …


Engaging Stakeholders In Ecosystem Service Assessment Under Climate Change And Urban Development Scenarios, Heejun Chang, David E. Ervin, Wes Hoyer, Mike Psaris, Ken Lyons, Emily D. Dietrich, Samantha Hamlin, John Lambrinos, Tammy Winfield, Bobby Cochran Oct 2013

Engaging Stakeholders In Ecosystem Service Assessment Under Climate Change And Urban Development Scenarios, Heejun Chang, David E. Ervin, Wes Hoyer, Mike Psaris, Ken Lyons, Emily D. Dietrich, Samantha Hamlin, John Lambrinos, Tammy Winfield, Bobby Cochran

Geography Faculty Publications and Presentations

This presentation focuses on how scientists can engage stakeholders in ecosystem service assessment.


Getting Salmon Back In Salmon Creek: Systematizing Comparative Water Quality Analysis For Targeted Restoration, Zbigniew J. Grabowski, Sarah Janjua, Michael Swamer, Heejun Chang, Eric Watson Oct 2013

Getting Salmon Back In Salmon Creek: Systematizing Comparative Water Quality Analysis For Targeted Restoration, Zbigniew J. Grabowski, Sarah Janjua, Michael Swamer, Heejun Chang, Eric Watson

Geography Faculty Publications and Presentations

This presentation focuses on water quality restoration efforts in Salmon Creek


Assessing Cultural Ecosystem Services Using Gis-Based Landscape Values Mapping. Case Study: Olympic Peninsula Human Ecology Mapping Project, Diane Besser, Rebecca J. Mclain, Lee Cerveny, David Banis Oct 2013

Assessing Cultural Ecosystem Services Using Gis-Based Landscape Values Mapping. Case Study: Olympic Peninsula Human Ecology Mapping Project, Diane Besser, Rebecca J. Mclain, Lee Cerveny, David Banis

Institute for Sustainable Solutions Publications and Presentations

This presentation focuses on the Olympic Peninsula mapping project objectives:

  • Develop and test a method for mapping sociocultural values at a Bioregional scale
  • Test techniques for analyzing spatialized sociocultural values data
  • Explore ways to integrate spatialized sociocultural values into forest management planning