Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Autocorrelation (Statistics) (1)
- Climate change mitigation (1)
- Climatic changes (1)
- Columbia River Watershed (1)
- Ecological regions (1)
-
- Estuaries -- Hydrodynamics (1)
- Estuarine hydrology (1)
- Green roofs (Gardening) (1)
- Roof runoff -- Composition -- Seasonal variations -- Oregon -- Portland -- Case studies (1)
- Runoff -- Environmental aspects (1)
- Saltwater encroachment (1)
- Sea level (1)
- Spatial analysis (Statistics) (1)
- Urban runoff -- Management (1)
- Water quality -- Mathematical models (1)
- Water quality -- Nepal -- Measurement -- Case studies (1)
- Water-supply -- Australia -- Tasmania -- Management -- Case studies (1)
- Water-supply -- Oregon -- Willamette River Valley -- Management -- Case studies (1)
- Wine districts (1)
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
A Seasonal Study Of Ecoroof Metal And Nutrient Dynamics And Associated Drivers In An Ecoroof On A Commercial Building In North Portland Oregon, Alex Vijay Bans
A Seasonal Study Of Ecoroof Metal And Nutrient Dynamics And Associated Drivers In An Ecoroof On A Commercial Building In North Portland Oregon, Alex Vijay Bans
Dissertations and Theses
Green stormwater infrastructure (GSI), specifically ecoroofs, is increasingly seen as an effective stormwater management tool in urban planning strategies. However, the literature suggests that ecoroofs can be sources of certain metals and nutrients. The goal of our study was to address two research questions: 1) How does ecoroof runoff compare to conventional roof runoff chemically: do ecoroofs retain certain chemicals and leach others? and 2) what are the roof characteristics and environmental variables that affect runoff quality? For 10 months, runoff events from an ecoroof were compared to those of a conventional roof; water samples were collected with autosamplers, and …
Understanding Institutional, Social, And Ecological Systems Influencing Climate Change Adaptation And Water Governance In Wine Regions: A Comparative Case Study Of Oregon's Willamette Valley, Usa And Tasmania, Australia, Erin Upton
Dissertations and Theses
My research examines how water management decisions create opportunities or barriers to climate change adaptation in wine regions. Water is a critical resource for economic and environmental sustainability in wine grape growing regions. Climate uncertainty presents considerable risk and vulnerability to freshwater resources in wine producing regions where needs for access to water will increase with more frequent climate extremes. Climate adaptation in the wine industry is a complex problem that requires multi-disciplinary approaches. This research aims to strengthen the interface between water governance and technological and viticulture adaptation approaches. Water resources are shared across regions by stakeholders with varied …
Spatial Statistical Approaches To Water Quality Modelling, Janardan Mainali
Spatial Statistical Approaches To Water Quality Modelling, Janardan Mainali
Dissertations and Theses
This dissertation aims to advance the existing knowledge related to spatial modeling of water quality by exploring and introducing innovative approaches to different spatial conceptualizations for water quality modeling and incorporating upstream-downstream relations in geographically weighted regression. By carrying out a systematic literature review of four different classes of spatial models in Chapter One, this dissertation identifies the following major research gaps: lack of incorporation of multiscale processes, not enough emphasis on spatial weights matrices, and unavailability of upstream-downstream relationships in geographically weighted regressions. Chapters Two and Three were designed to address these gaps in the literature. In Chapter Two, …
Long Term Changes To The Lower Columbia River Estuary (Lcre) Hydrodynamics And Salinity Patterns, Aqeel Al-Bahadily
Long Term Changes To The Lower Columbia River Estuary (Lcre) Hydrodynamics And Salinity Patterns, Aqeel Al-Bahadily
Dissertations and Theses
Changing the morphological and hydrological conditions of an estuary can affect the estuarine hydrodynamics. The hydrograph of the Lower Columbia River Estuary (LCRE) and its bathymetry have been altered significantly over the past 150 years, such that the spring-freshet has decreased by 40-50% while winter flow has increased by 50%. In addition, the inlet width has been narrowed from 9.7 to 3.2km by the construction of jetties, and the controlling depth of the navigation channel has been deepened from 6 to 13m by continuous dredging. Also, ~70% of the shallow water habitat has been lost due to diking and wetland …