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Geography Commons

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Portland State University

2009

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Articles 1 - 6 of 6

Full-Text Articles in Geography

Water As A Complex System: Understanding The Dynamics In A Changing Environment, Heejun Chang Oct 2009

Water As A Complex System: Understanding The Dynamics In A Changing Environment, Heejun Chang

Systems Science Friday Noon Seminar Series

The water resources system is constantly evolving over space and time at a range of scales. Human-induced climate change and land development are probably two major driving forces of water resource system changes. However, the impacts of such changes are region specific, which depend on watershed characteristics such as topography and geology. Numerical simulation models are useful tools for understanding the system dynamics by allowing the multiple interactions of system components. I will introduce case studies of the Pacific Northwest that examine how changing climate and population growth affect regional water resources at multiple spatial and temporal scales and explain …


Impacts Of Climate Change And Urban Development On Water Resources In The Tualatin River Basin, Sarah Praskievicz May 2009

Impacts Of Climate Change And Urban Development On Water Resources In The Tualatin River Basin, Sarah Praskievicz

Dissertations and Theses

Potential impacts of climate change on the water resources of the Pacific Northwest of the United States include earlier peak runoff, reduced summer flows, and increased winter flooding. An increase in impervious surfaces, accompanied by urban development, is known to decrease infiltration and increase surface runoff. Alterations of flow amount and pathways can alter water quality through dilution or flushing effects. I used the United States Environmental Protection Agency's Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) modeling system to investigate the relative importance of future climate change and land use change in determining the quantity and quality of …


Ethnic Place Making: Thirty Years Of Brazilian Immigration To South Framingham, Massachusetts, Laura Aldea Skorczeski Apr 2009

Ethnic Place Making: Thirty Years Of Brazilian Immigration To South Framingham, Massachusetts, Laura Aldea Skorczeski

Dissertations and Theses

Over the past thirty years, Massachusetts has become a hub of Brazilian immigration. Within Massachusetts, the town of Framingham has the highest concentration of Brazilian residents; one census tract in the southern part of this Boston suburb is an astounding 57.4 percent Brazilian. The presence of the Brazilian population in downtown Framingham, also referred to as South Framingham, has transformed the area into a landscape of Brazilian ethnicity.

When Brazilians began arriving in South Framingham in the early 1980s, the downtown Central Business District was a blighted landscape. This thesis analyzes how Brazilian identities have become imprinted on the landscape …


Multnomah County Youth Tobacco Access Report, Sara Avishan, Cameron Bremer, Mike Conley, Chad Dettlaff, Ben Fitzsimons, Ben Harper, Jennifer Jensen, Shawn Lenker, Dan Manders, Mateo Meazell Apr 2009

Multnomah County Youth Tobacco Access Report, Sara Avishan, Cameron Bremer, Mike Conley, Chad Dettlaff, Ben Fitzsimons, Ben Harper, Jennifer Jensen, Shawn Lenker, Dan Manders, Mateo Meazell

Asset Mapping: Community Geography Project

Multnomah County requested that the Summer 2009 Asset Mapping Capstone Group gather data relating to the proximity of tobacco advertising to Portland Public Schools. The group’s underlying objective was to create an accurate data set that may be used by Multnomah County public health officials to assess the possible effects of tobacco advertising on school-aged children with an eye to influencing policy. The data set was created using a number of tools in conjunction with primary data retrieved from field observation; great care was taken to ensure accuracy and objectivity. The findings, which may be used to inform future research, …


Student Atlas Of Oregon: A Classroom Atlas For Elementary And Middle Schools, Teresa L. Bulman, Gwenda H. Rice, Center For Spatial Analysis And Research. Portland State University, David Banis Jan 2009

Student Atlas Of Oregon: A Classroom Atlas For Elementary And Middle Schools, Teresa L. Bulman, Gwenda H. Rice, Center For Spatial Analysis And Research. Portland State University, David Banis

Instructional Materials

Includes maps about Oregon's landscape, climate, culture, economics, historical geography, water resources, wildlife, vegetation, agriculture, population, transportation, and natural resources.

The Student Atlas of Oregon was created specifically for upper elementary and middle school students, so it is easy for kids to understand.


The ‘Benchmark Glacier’ Concept – Does It Work? Lessons From The North Cascade Range, Usa, Andrew G. Fountain, Matthew J. Hoffman, Frank Granshaw, Jon L. Riedel Jan 2009

The ‘Benchmark Glacier’ Concept – Does It Work? Lessons From The North Cascade Range, Usa, Andrew G. Fountain, Matthew J. Hoffman, Frank Granshaw, Jon L. Riedel

Geology Faculty Publications and Presentations

Benchmark glaciers were established in many alpine areas during the 1960s as part of the International Hydrological Decade to represent ‘typical’ mass and energy processes on glaciers in different climatic regions around the world. These glaciers have received new interest in the past decade because they are used to infer the contribution of alpine glacier wastage to global sea-level rise. We compare South Cascade Glacier, the benchmark glacier for the northwest contiguous USA, and four other secondary glaciers, against the topographic, area and mass changes of 321 glaciers in the surrounding region. Results show that South Cascade Glacier is unusually …