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Articles 1 - 4 of 4

Full-Text Articles in Urban Studies and Planning

Integrating Satellite And Ground Measurements For Predicting Locations Of Extreme Urban Heat, Vivek Shandas, Jackson Lee Voelkel, Joseph Williams, Jeremy Hoffman Jan 2019

Integrating Satellite And Ground Measurements For Predicting Locations Of Extreme Urban Heat, Vivek Shandas, Jackson Lee Voelkel, Joseph Williams, Jeremy Hoffman

Urban Studies and Planning Faculty Publications and Presentations

The emergence of urban heat as a climate-induced health stressor is receiving increasing attention among researchers, practitioners, and climate educators. However, the measurement of urban heat poses several challenges with current methods leveraging either ground based, in situ observations, or satellite-derived surface temperatures estimated from land use emissivity. While both techniques contain inherent advantages and biases to predicting temperatures, their integration may offer an opportunity to improve the spatial resolution and global application of urban heat measurements. Using a combination of ground-based measurements, machine learning techniques, and spatial analysis, we addressed three research questions: (1) How much do ambient temperatures ...


Nature-Based Designs To Mitigate Urban Heat: The Efficacy Of Green Infrastructure Treatments In Portland, Oregon, Yasuyo Makido, Dana E. Hellman, Vivek Shandas Jan 2019

Nature-Based Designs To Mitigate Urban Heat: The Efficacy Of Green Infrastructure Treatments In Portland, Oregon, Yasuyo Makido, Dana E. Hellman, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

Urban heat is a growing environmental concern in cities around the world. The urban heat island effect, combined with warming effects of climate change, is likely to cause an increase in the frequency and intensity of extreme heat events. Alterations to the physical, built environment are a viable option for mitigating urban heat, yet few studies provide systematic guidance to practitioners for adapting diverse land uses. In this study, we examine the use of green infrastructure treatments to evaluate changes in ambient temperatures across diverse land uses in the city of Portland, Oregon. We apply ENVI-met® microclimate modeling at the ...


Changes In Farmland Ownership In Oregon, Usa, Megan Horst Jan 2019

Changes In Farmland Ownership In Oregon, Usa, Megan Horst

Urban Studies and Planning Faculty Publications and Presentations

The ownership of agricultural land has important implications for food systems, the environment, farmer livelihoods, and rural economies, communities, and landscapes. This article examines the changing ownership of agricultural lands in the United States, specifically focusing on Oregon, a state with a history of family farm ownership. I first review historical and recent trends in farmland ownership, including private enclosure, consolidation, investor purchase, development, and rising farmland prices. Next, I examine the county records for all Oregon farm properties that sold between 2010 and 2015. I provide summary statistics about the volume and pace of transactions, price per acre, and ...


Rescaling Air Quality Management: An Assessment Of Local Air Quality Authorities In The United States, Kelsea A. Schumacher, Vivek Shandas Jan 2019

Rescaling Air Quality Management: An Assessment Of Local Air Quality Authorities In The United States, Kelsea A. Schumacher, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

Institutional design for local air quality management is an underdeveloped area for research and practice. Although the United States has more than a century of organizational experience managing air quality at the Federal level, the recent years have seen a surge of interest in addressing municipal-scale solutions. Without information about the institutional designs, governance structures, and implications of localizing air quality management, practitioners may face challenges reducing population exposure to air pollutants. We offer a US national perspective on managing local air quality by assessing and surveying 117 local air quality authorities identified by the National Association of Clean Air ...