Browsing Earth and Environmental Sciences by Title
Now showing items 318-337 of 436
-
Physical and Geochemical Characterization of Two Wetlands in the Experimental Lakes Area, North-western Ontario, Canada
(University of Waterloo, 2012-09-27)Anthropogenic disruptions in the form of hydrological alterations, such as dam construction and the associated water diversions are a cause of much upheaval to local and regional ecosystems. Lake 626 within the Experimental ... -
Physical Hydrogeology and Impact of Urbanization at the Waterloo West Side: A Groundwater Modelling Approach
(University of Waterloo, 2000)In the last few decades protection of the environment has moved to the forefront of earth science research. Sustainable development is becoming more important to rapidly growing communities throughout southern Ontario ... -
The Physical Mechanisms of Microbiological Cellular Transport, Storage, and Metabolism of Aromatic Hydrocarbon-Degrading Soil Microbiota
(University of Waterloo, 2021-06-01)The Monod bioreaction equation, though justified from extensive practical use, has been found to have limited mechanistic basis (Enouy, Walton, et al., 2021). To attempt to gain a biological mechanistic representation of ... -
The pivotal role of angiogenesis in a multi-scale modeling of tumor growth exhibiting the avascular and vascular phases
(Elsevier, 2018-09-01)The mechanisms involved in tumor growth mainly occur at the microenvironment, where the interactions between the intracellular, intercellular and extracellular scales mediate the dynamics of tumor. In this work, we present ... -
Plastic debris in the Laurentian Great Lakes: A review
(Elsevier, 2015-03-01)Pollution by plastic debris is an increasing environmental concern in the Laurentian Great Lakes where it affects open-water, shoreline, and benthic environments. Open-water surveys reveal that in certain areas of the Great ... -
Plastic debris in the Laurentian Great Lakes: Classification, distribution and environmental drivers
(University of Waterloo, 2015-07-03)Pollution by plastic debris is an increasing environmental concern in the Laurentian Great Lakes: it affects open-water, shoreline, and benthic environments. Many plastics degrade slowly in the environment and may have ... -
Potential and Limitations of MCM-41 in Dechlorination Reactions
(University of Waterloo, 2007-04-27)The purpose of this thesis was to conduct preliminary research into the feasibility of using MCM-41 as a catalyst support material in the treatment of organochloride contaminated water. Specifically, the stability of MCM-41 ... -
A Preliminary Field Study to Examine the Potential of Hydrogeophysical Methods to Monitor Soil Moisture Dynamics in Quaternary Outwash Materials
(University of Waterloo, 2015-04-28)This thesis examines the capacity of a suite of near-surface geophysical techniques (i.e., ground-penetrating radar (GPR), electromagnetic induction (EMI) and electrical resistivity tomography (ERT)) to monitor soil moisture ... -
A priori discretization error metrics for distributed hydrologic modeling applications
(Elsevier, 2016-12-01)Watershed spatial discretization is an important step in developing a distributed hydrologic model. A key difficulty in the spatial discretization process is maintaining a balance between the aggregation-induced information ... -
A process-based stable isotope approach to carbon cycling in recently flooded upland boreal forest reservoirs
(University of Waterloo, 2002)Reservoirs impound and store large volumes of water and flood land. The water is used for electricity generation, irrigation, industrial and municipal consumption, flood control and to improve navigation. The ... -
Proterozoic zircon dates from auriferous zones at the Island Gold deposit: implications for late gold remobilization in the Superior Province
(University of Waterloo, 2024-02-13)The Island Gold deposit is a high-grade Archean orogenic gold deposit within the Michipicoten greenstone belt of the Superior Province. Hosted within the ~2750 Ma felsic to intermediate Wawa metavolcanic assemblage, gold ... -
Pulse Flow Enhancement in Two-Phase Media
(University of Waterloo, 2001)This laboratory project has been done to evaluate pressure pulsing as an Enhanced Oil Recovery (EOR) technique. To perform the study, a consistent laboratory methodology was developed, including the construction of a ... -
Pulsed Biosparging of the E10 Gasoline Source in the Borden Aquifer
(University of Waterloo, 2008-10-27)Air sparging is a technique used to remediate gasoline contamination. In sparging, air is injected below the target zone and removes contamination via two separate mechanisms; volatilization and biodegradation. In ... -
Quantification of Oxygen Dynamics in the Grand River Using a Stable Isotope Approach
(University of Waterloo, 2010-04-30)The current study monitored DO, stable isotopes of O2 (δ18O-O2 and δ18O-H2O) along with water quality parameters on both a diel and day-time only basis in the Grand River over several seasons and locations. A dynamic dual ... -
Quantification of the Long-Term Effects from Nutrient Reductions on Groundwater Nitrate Concentrations in an Agricultural Setting
(University of Waterloo, 2008-06-06)The Ontario Nutrient Management Act (2002) recommends agricultural Beneficial Management Practices (BMPs) that involve reductions in nutrient applications of nitrogen (N) to fields to improve underlying groundwater quality, ... -
Quantifying Groundwater Recharge Under Dynamic Seasonality in Cold Climates
(University of Waterloo, 2018-01-18)Estimating groundwater recharge in cold climates during periods of dynamic seasonality such as winter melt periods and spring freshets is challenging due to subsurface heterogeneities and the complexity of vadose zone ... -
Quantifying the Effects of Water Management Decisions on Streambank Stability
(University of Waterloo, 2022-09-30)Streams continuously change due to natural processes and human activities, significantly affecting streambank erosion and stability. These changes cause severe environmental issues, including sedimentation of reservoirs, ... -
Quantifying the Groundwater Component within the Water Balance of a Large Lake in a Glaciated Watershed: Lake Pyhäjärvi, SW Finland
(University of Waterloo, 2012-01-20)Accurate estimates of the amount of groundwater entering a lake on a yearly basis may provide valuable information for assessing contaminant loadings such as nutrient mass fluxes and the subsequent contribution of groundwater ... -
Quantifying the role of reservoirs in altering phosphorus dynamics using a combination of data analysis and process modeling
(University of Waterloo, 2022-04-29)Excess phosphorus (P) from agricultural watersheds promotes eutrophication in downstream aquatic systems. Reservoirs retain P generated from farm fields and protect downstream waters. Reservoirs also act as hotspots for P ... -
Quantitative modeling of nitrogen cycling along the river continuum: streambed sediments, reservoirs, and isotopes
(University of Waterloo, 2018-09-26)The vast release of anthropogenically produced reactive nitrogen (N) into the environment, by agricultural activities, energy production and municipal wastewater, has led to a variety of consequences for atmospheric, ...