Digital Commons Network^™

Characterizing Large-Scale Meteorological Patterns And Associated Temperature And Precipitation Extremes Over The Northwestern United States Using Self-Organizing Maps, Paul C. Loikith, Benjamin R. Lintner, Alex Sweeney

Geography Faculty Publications and Presentations

The self-organizing maps (SOMs) approach is demonstrated as a way to identify a range of archetypal large-scale meteorological patterns (LSMPs) over the northwestern United States and connect these patterns with local-scale temperature and precipitation extremes. SOMs are used to construct a set of 12 characteristic LSMPs (nodes) based on daily reanalysis circulation fields spanning the range of observed synoptic-scale variability for the summer and winter seasons for the period 1979–2013. Composites of surface variables are constructed for subsets of days assigned to each node to explore relationships between temperature, precipitation, and the node patterns. The SOMs approach also captures interannual …

The In-Between: Tea Talks, Lexa Walsh

The In-Between: Tea Talks

Created by Lexa Walsh and participating diners and writers

The In Between: Tea Talks is a series of intimate facilitated discussions over home cooked meals that bring together conflicting populations of artists, activists and workers to discuss topics affecting them in the Bay Area. The project gathers artists, writers, tech workers, “sharing economy” laborers (Uber and Lyft drivers, AirBnB hosts) and their critics (taxi drivers, tenants rights activists) together in a hospitable environment so each may share their positions in a safe yet open and critical dialogue. Each position is respectfully held in the space. The conversations are documented in …

Building Diversity In The Construction Trades, Maura Kelly

Sociology Faculty Publications and Presentations

No abstract provided.

Faculty Senate Monthly Packet April 2017, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The April 2017 Monthly packet includes the April agenda and appendices and the Faculty Senate minutes and attachments from the meeting held March 2017.

Parks, People, And Property Values: The Changing Role Of Green Spaces In Antebellum Manhattan, Catherine Mcneur

History Faculty Publications and Presentations

The role that parks played in Manhattan changed dramatically during the antebellum period. Originally dismissed as unnecessary on an island embraced by rivers, parks became a tool for real estate development and gentrification in the 1830s. By the 1850s, politicians, journalists, and landscape architects believed Central Park could be a social salve for a city with rising crime rates, increasingly visible poverty, and deepening class divisions. While many factors (public health, the psychological need for parks, and property values) would remain the same, the changing social conversation showed how ideas of public space were transforming, in rhetoric if not reality.

Assembly 2017, Portland State University Art And Social Practice

Assembly

Assembly 2017 took place in 3 locations connected to the Columbia River Slough

Two Forecasting Models For Portland, Oregon: Hamilton –Perry Vs Metroscope, Richard Lycan

Institute on Aging Publications

Presentation focuses on population forecasting models and compares the Metroscope Forecasting Model and the Hamilton-Perry Model.

The Trials Of Displacement: Transnationalism And Interdisciplinary Feminisms In Demetria Martínez’S The Block Captain’S Daughter, Elena Avilés

Chicano/Latino Studies Faculty Publications and Presentations

From the fifteenth century to the twenty-first century, the interaction between dispossession and displacement are central questions Martinez channels in writing. Her work represents the struggle of contemporary feminist interventions on issues of international migration within the annals of the New Mexican borderlands. The power to generate reflexivity about gendered displacement begins to remap vision of identity in print that brings the reader to wage the multiple values of American society. Innovations to the experiences of women of multiethnic backgrounds are perhaps one of the strengths of her latest narrative.

Albuquerque is a backdrop where shifts and dislocations of the …

Transportation Cost Index: A Comprehensive Performance Measure For Transportation And Land Use Systems And Its Application In Or, Fl, And Ut, Liming Wang, Jenny H. Liu

TREC Final Reports

MAP-21 and state laws are placing increasing emphasis on using comprehensive transportation performance measures that include mobility, safety, economy, livability, equity, and environmental to guide transportation decision-making. One of the toughest challenges keeping DOTs and MPOs from adopting comprehensive measures in the decision process is the lack of performance measures allowing consistent comparison of multimodal performance over time and across geographic areas. This project advances a transportation cost index (TCI) initially proposed by Oregon DOT from a proof-of-concept stage to implementation and operational use at the state, MPO, and community levels. After pilot tests and early adoption in Oregon, we …

Stacking Functions: Identifying Motivational Frames Guiding Urban Agriculture Organizations And Businesses In The United States And Canada, Nathan Mcclintock, Michael Simpson

Urban Studies and Planning Faculty Publications and Presentations

While a growing body of scholarship identifies urban agriculture's broad suite of benefits and drivers, it remains unclear how motivations to engage in urban agriculture (UA) interrelate or how they differ across cities and types of organizations. In this paper, we draw on survey responses collected from more than 250 UA organizations and businesses from 84 cities across the United States and Canada. Synthesizing the results of our quantitative analysis of responses (including principal components analysis), qualitative analysis of textual data excerpted from open-ended responses, and a review of existing literature, we describe six motivational frames that appear to guide …

Food Access Narratives In Southeast Portland, Oregon, Gwyneth Genevieve Mckee Manser

Dissertations and Theses

Since the late 1990's, "food deserts" have dominated the academic and policy literature on food access and food security. Food deserts are defined as areas that lack easy access to fresh, healthy, and affordable food, and are typically measured using Geographic Information Systems and spatial data sets. However, while food deserts may provide a useful measure for identifying food insecurity at a broad scale, they fail to account for individual definitions and perceptions of food access (Barnes et al. 2015; McEntee 2009). Furthermore, the food desert model assumes a lack of agency on the part of low-income populations (Alkon et …

A Numerical Model Investigation Of The Role Of The Glacier Bed In Regulating Grounding Line Retreat Of Thwaites Glacier, West Antarctica, Michael Scott Waibel

Dissertations and Theses

I examine how two different realizations of bed morphology affect Thwaites Glacier response to ocean warming through the initiation of marine ice sheet instability and associated grounding line retreat. A state of the art numerical ice sheet model is used for this purpose. The bed configurations used are the 1-km resolution interpolated BEDMAP2 bed and a higher-resolution conditional simulation produced by John Goff at the University of Texas using the same underlying data. The model is forced using a slow ramp approach, where melt of ice on the floating side of the grounding line is increased over time, which gently …

The Effects Of Scale Variation On Single-Family Residential Water Use In Portland, Or, Matthew Ryan Lee Bonnette

Dissertations and Theses

With growing urban populations and increasing concerns over the effects of climate change on water supplies, there has recently been a significant amount of interdisciplinary research focused on identifying the drivers of urban water use. Due to unavailability of individual or household level data, these studies are often limited to using spatially aggregated data. There is concern that this aggregation of data may be leading to misrepresentations of the drivers of urban water use, yet there have been few studies that have addressed this concern. As in all spatial quantitative analyses, studies in this area should consider how the spatial …

Regulating Pavement Dwellers: The Politics Of The Visibly Poor In Public Space, Lauren Marie Larin

Dissertations and Theses

Many researchers argue the increasing reliance on sit/lie ordinances to regulate homeless people's use of public space is one in a suite of neoliberal policies that shape the geographies of public space in cities to serve the needs of global capital. However, these policies are developed at the local, not global, level as specific actors make claims in the public sphere that communicatively shape policy formation. Through comparative case study, this research asks, how do different actors, situated in specific local and global contexts, influence the adoption of sit/lie ordinances?

I examine two cases of policymaking in Portland and San …

Power Dynamics And Environmental Resource Flows In The Network Society: Water Bottling And Policy Development In The Columbia Gorge, Cody Shotola-Schiewe

University Honors Theses

This research explores the sociopolitical development of resource rights policy and environmental resource flows in the network society. The specific interaction studied is centered on a disputed proposal by Nestlé Waters North America to the City of Cascade Locks, on the Oregon side of the Columbia River, which would allow Nestlé to build a water bottling plant accessing the culturally and environmentally significant Oxbow Springs. The primary question guiding this research is: In the case of the developing policy concerning water rights in the County of Hood River, what are the identifiable power dynamics between civil society actors, private interests, …

Faculty Senate Monthly Packet March 2017, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The March 2017 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held February 2017.

Clientelism And Citizens' Right To The City In The Province Of Buenos Aires, Sara Hyman

University Honors Theses

This research examines the relationship between neoliberalism, clientelism, and citizen’s right to the city in the province of Buenos Aires. In the early 1990s a wave of neoliberal economic reform swept through Argentina. The social ramifications of this economic restructuring left many citizens marginalized and disenfranchised. In order to make ends meet, poor citizens exchanged their votes to receive basic necessities in a practice called clientelism. Urban clientelism, or the exchange of votes for goods, is analyzed within the theoretical understanding of Henri Lefebvre’s right to the city. Ethnographic accounts detailing the relationship between clientelist brokers and community residents in …

The Influence Of Föhn Winds On Glacial Lake Washburn And Palaeotemperatures In The Mcmurdo Dry Valleys, Antarctica, During The Last Glacial Maximum, Maciej Obryk, Peter Doran, Ed Waddington, Chris Mckay

Geology Faculty Publications and Presentations

Large glacial lakes, including Glacial Lake Washburn, were present in the McMurdo Dry Valleys, Antarctica, during the Last Glacial Maximum (LGM) despite a colder and drier climate. To address the mechanism capable of generating enough meltwater to sustain these large lakes, a conceptual model was developed based on the warming potential of infrequent contemporary föhn winds. The model suggests that föhn winds were capable of generating enough meltwater to sustain large glacial lakes during the LGM by increasing degree days above freezing (DDAF) and prolonging the melt season. A present-day relationship between infrequent summer föhn winds and DDAF was established. …

Network Analysis Of Wildfire Transmission And Implications For Risk Governance, Alan A. Ager, Cody Evers, Michelle A. Day, Haiganoush K. Preisler, Ana M.G. Barros, Max Nielsen-Pincus

Environmental Science and Management Faculty Publications and Presentations

We characterized wildfire transmission and exposure within a matrix of large land tenures (federal, state, and private) surrounding 56 communities within a 3.3 million ha fire prone region of central Oregon US. Wildfire simulation and network analysis were used to quantify the exchange of fire among land tenures and communities and analyze the relative contributions of human versus natural ignitions to wildfire exposure. Among the land tenures examined, the area burned by incoming fires averaged 57% of the total burned area. Community exposure from incoming fires ignited on surrounding land tenures accounted for 67% of the total area burned. The …

Destination Portland: Post-Great Recession Migration Trends In The Rose City Region, Jason R. Jurjevich, Greg Schrock, Jihye Kang

Publications, Reports and Presentations

This report explores how individuals decide to move to Portland, why they stay and how the region’s growth challenges might introduce costs that disproportionately burden people of color and young people of lower socioeconomic status.

Estimating Walking And Bicycling At The State Level, Krista Nordback, Mike Sellinger, Taylor Phillips

TREC Final Reports

Estimates of vehicle miles traveled (VMT) drive policy and planning decisions for surface transportation. No similar metric is computed for cycling and walking. What approaches could be used to compute such a metric on the state level? This report discusses three such approaches, identifies the advantages and disadvantages of each, and applies them to Washington State. The first approach employs travel survey data. The second approach is sample-based using pedestrian and bicycle count data. The third approach is an aggregate demand model approach using demographic data combined with count data. Due to data limitations, none of these methods could be …

Comprehensive Personnel Development In Deafblind Education: Exploration Of A Model, Catherine Nelson, Amy T. Parker

Special Education Faculty Publications and Presentations

The diverse learners who are deafblind have unique and often intensive needs that require the services of qualified, specifically trained educators. Although the Council for Exceptional Children (CEC) has developed competencies for Teacher of the Deafblind, the role is not officially recognized in most states. Therefore, sustaining personnel development training in deafblindness has been challenging. This webinar explored a model for a comprehensive system of personnel development in deafblind education that looks at standards, preservice training, inservice/professional development, leadership development, research, and finally, national and local planning, coordination, and evaluation.

Impact Of Bike Facilities On Residential Property Prices, Wei Shi

PSU Transportation Seminars

As many cities are investing in street improvement or transportation infrastructure upgrade projects to provide better bike access or more complete bike networks, the economic value of bike infrastructure and bike facilities remains an area where many practitioners, planners and policy makers are seeking more conclusive evidence. Using residential property values as indicators of consumer preferences for bicycle infrastructure, this study focuses on advanced bike facilities which represent higher levels of bike priority or bike infrastructure investments that have been shown to be more desirable to a larger portion of the population. Estimating ordinary least squares hedonic pricing models and …

Precipitation Intensity Trend Detection Using Hourly And Daily Observations In Portland, Oregon, Alexis Cooley, Heejun Chang

Geography Faculty Publications and Presentations

The intensity of precipitation is expected to increase in response to climate change, but the regions where this may occur are unclear. The lack of certainty from climate models warrants an examination of trends in observational records. However, the temporal resolution of records may affect the success of trend detection. Daily observations are often used, but may be too coarse to detect changes. Sub-daily records may improve detection, but their value is not yet quantified. Using daily and hourly records from 24 rain gages in Portland, Oregon (OR), trends in precipitation intensity and volume are examined for the period of …

Watershed Response To Climate Change And Fire-Burns In The Upper Umatilla River Basin, Usa, Kimberly Crystal Yazzie, Heejun Chang

Geography Faculty Publications and Presentations

This study analyzed watershed response to climate change and forest fire impacts in the upper Umatilla River Basin (URB), Oregon, using the precipitation runoff modeling system. Ten global climate models using Coupled Intercomparison Project Phase 5 experiments with Representative Concentration Pathways (RCP) 4.5 and 8.5 were used to simulate the effects of climate and fire-burns on runoff behavior throughout the 21st century. We observed the center timing (CT) of flow, seasonal flows, snow water equivalent (SWE) and basin recharge. In the upper URB, hydrologic regime shifts from a snow-rain-dominated to rain-dominated basin. Ensemble mean CT occurs 27 days earlier in …

Individual Decision Making In Online Public-Participation Transportation Planning, Martin Swobodzinski

PSU Transportation Seminars

The empirical evaluation of complex decision support systems is often limited to the self-reported satisfaction of the systems’ users.

Such an approach is problematic due to the conflation of the user's satisfaction related to the decision support system and the decision making process and its outcomes.

In addition, it bears limitations that are common among most techniques that solicit participant-stated feedback.

In this talk, based on data that was gathered by a web-based participatory system for transportation planning in the Puget Sound region, I present analytical methods for the empirical evaluation of decision support systems based on human-computer interaction. In …

Urban Ecology & Conservation Symposium 2017: 15th Annual (Abstracts), Urban Ecosystem Research Consortium Of Portland/Vancouver

Urban Ecosystem Research Consortium of Portland/Vancouver

The UERC is a consortium of people from various universities and colleges, state and federal agencies, local governments, non-profit organizations and independent professionals interested in supporting urban ecosystem research and creating an information-sharing network of people that collect and use ecological data in the Portland/Vancouver area.

UERC Mission Statement:

To advance the state of the science of urban ecosystems and improve our understanding of them, with a focus on the Portland/Vancouver metropolitan region, by fostering communication and collaboration among researchers, managers and citizens at academic institutions, public agencies, local governments, non-profit organizations, and other interested groups.

The principal organizers span …

Faculty Senate Monthly Packet February 2017, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The February 2017 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held January 2017.

Divergent Trends In Ecosystem Services Under Different Climate-Management Futures In A Fire-Prone Forest Landscape, Joshua S. Halofsky, Jessica E. Halofsky, Miles A. Hemstrom, Anita T. Morzillo, Xiaoping Zhou, Daniel C. Donato

Institute for Natural Resources Publications

While ecosystem services and climate change are often examined independently, quantitative assessments integrating these fields are needed to inform future land management decisions. Using climate-informed state-and-transition simulations, we examined projected trends and trade-offs for a suite of ecosystem services under four climate change scenarios and two management scenarios (active management emphasizing fuel treatments and no management other than fire suppression) in a fire-prone landscape of dry and moist mixed-conifer forests in central Oregon, USA. Focal ecosystem services included fire potential (regulating service), timber volume (provisioning service), and potential wildlife habitat (supporting service). Projections without climate change suggested active management in …

Incorporating Sociocultural Phenomena Into Ecosystem-Service Valuation: The Importance Of Critical Pluralism, Carena J. Van Riper, Adam C. Landon, Sarah Kidd, Patrick Bitterman, Lee A. Fitzgerald, Elise F. Granek, Sonia Ibarra, David Iwaniec, Christopher Raymond, David Toledo

Environmental Science and Management Faculty Publications and Presentations

Ecosystem-services scholarship has largely focused on monetary valuation and the material contributions of ecosystems to human well-being. Increasingly, research is calling for a deeper understanding of how less tangible, nonmaterial values shape management and stakeholder decisions. We propose a framework that characterizes a suite of sociocultural phenomena rooted in key social science disciplines that are currently underrepresented in the ecosystem-services literature. The results from three example studies are presented to demonstrate how the tenets of this conceptual model can be applied in practice. We consider the findings from these studies in light of three priorities for future research: (1) complexities …