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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The Feasibility of Using LANDSAT Thematic Mapper Data for Fine Scale Vegetation Classification in Southern Ontario

Hawes, Michael 04 1900 (has links)
<p> An analysis was performed using LANDSAT Thematic Mapper digital imagery to determine the feasibility of fine scale vegetation classification in southern Ontario. </p> <p> MICROPIPS, an image processing program, was used to analyse the Thematic Mapper data, based on spectral response patterns of different land cover types. Final classified images were compared with vegetation classifications as determined by the Royal Botanical Gardens, in Hamilton, Ontario. </p> <p> It was concluded, that it was possible to classify land cover types using MICROPIPS, but only at a general level. Thus, it was not feasible to classify vegetation on a fine scale. </p> / Thesis / Candidate in Philosophy
22

The Map is Not the Territory

Urbanik, Brian A January 2012 (has links)
Hi Donald, It just occurred to me that I might be finished with this fieldwork. I’m sitting at the side of the road looking over this fucked up landscape of cattle, golf carts, trees with turning leaves, being rained on, frozen out, everything feels forced, and I’m double-taking sight after sight, saying to myself I’ve seen this before, I’ve done this already. I’m packing up my things. I’ll write more later, or perhaps I’ll call. bau Thirty-three locations in pursuit of the long view, from the borders of an expropriated forty year old ghost town. Thirty-eight Polaroids, thirty-six mobile phone photographs, thirty-six photos from a digital single lens reflex camera with an oiled lens filter, forty 15.2 x 10.2 cm drawings, fifty-six 38.4 x 16.4 cm drawings, sixty-three white-bordered 38.4 x 20.8 cm drawings, sixty-four 33.5 x 17.2 cm sketchbook spreads. 20 085 words; 14 123 by choice, 5962 out of obligation. It is important to figure things out for yourself. It is important to not learn too much of any one thing. This is a thesis because it’s a thesis; it is what it is. (That’s begging the question.) This is a thesis about begging the question.
23

Scripting the Right to be Canadian: Immigrant Experiences, Policies, and Practices in Southern Ontario

Ruthralingam, Noelyn Mithila January 2014 (has links)
The ways that categories of immigration are drawn and standards of successful citizenship are measured in Canadian society influence the ways that people script themselves to appear as worthy immigrant applicants and potential Canadian citizens. For immigrant hopefuls, scripting oneself using the language of immigration and positioning oneself as a deserving and desirable immigrant is crucial for gaining mobility and passage into Canadian society. In my thesis, I explore the literature surrounding processes and concepts like borders, mobility, good citizenship, the ???white standard???, and racialization that serve as foundations and outcomes of scripting ???good??? immigrants and ???successful??? citizenship. I embed the experiences of my informants within an analysis of this literature as well as the processes of immigration outlined by Citizenship and Immigration Canada (CIC). I find that scripting immigrant categories and citizenship can result in immigrants enacting only a limited Canadianness. Immigrant categories involve restrictive policies that can result in exploitation. I also offer that immigrants may live a double-consciousness through their transnationalism and constituting of ???back home???. The larger hope for this project is to provide an understanding of the processes of scripting that work to make exclusive the right to be Canadian so that the vulnerability and suffering caused by the existence of hierarchies of citizenship can be tackled as a public issue and make for a more inclusive and equitable Canada.
24

The Map is Not the Territory

Urbanik, Brian A January 2012 (has links)
Hi Donald, It just occurred to me that I might be finished with this fieldwork. I’m sitting at the side of the road looking over this fucked up landscape of cattle, golf carts, trees with turning leaves, being rained on, frozen out, everything feels forced, and I’m double-taking sight after sight, saying to myself I’ve seen this before, I’ve done this already. I’m packing up my things. I’ll write more later, or perhaps I’ll call. bau Thirty-three locations in pursuit of the long view, from the borders of an expropriated forty year old ghost town. Thirty-eight Polaroids, thirty-six mobile phone photographs, thirty-six photos from a digital single lens reflex camera with an oiled lens filter, forty 15.2 x 10.2 cm drawings, fifty-six 38.4 x 16.4 cm drawings, sixty-three white-bordered 38.4 x 20.8 cm drawings, sixty-four 33.5 x 17.2 cm sketchbook spreads. 20 085 words; 14 123 by choice, 5962 out of obligation. It is important to figure things out for yourself. It is important to not learn too much of any one thing. This is a thesis because it’s a thesis; it is what it is. (That’s begging the question.) This is a thesis about begging the question.
25

Assessment of Climate Change Impacts in the Six Nations of the Grand River Reserve / Climate Change and Six Nations

Deen, Tariq Adel January 2024 (has links)
Warming climate will affect communities across Canada. Many of these communities do not have the adaptive capacity to deal with climate change related challenges. Indigenous communities are believed to be disproportionally affected by climate change because of the lack of adequate infrastructure, and historical and political obstacles that limit their overall adaptive capacity. Therefore, climate change data and information are required to understand the full extent to which these communities are exposed to climate risks. Many past studies in the literature have outlined the effects of climate change at large spatial scales. While these studies are important for understanding the broad effects of climate change, they are not useful for community or local adaptation planning. Ultimately, climate change impacts will be felt at a local level. Hence, high resolution climate change impact studies are urgently needed to capture the realities of these effects in greater detail and to provide relevant data and information at local and community levels, in particular for marginalized and Indigenous communities. Using observed meteorological and hydrologic data, high-resolution downscaled future climate simulations, and a process-based hydrologic model, this thesis explored the physical impacts of climate change on the Six Nations of the Grand River (Six Nations) reserve, which is the largest (by population) Indigenous community in Canada and the seventh largest in the United States and Canada. Changing climate conditions and extreme climate trends in the Six Nations reserve were explored using the widely used ETCCDI (Expert Team on Climate Change Detection and Indices) extreme climate indices. Results indicated a warming and wetting trend in Six Nations, with the temperature rising by 3°C to 6°C by the end of the century and changes in seasonal precipitation. Extreme high temperature and precipitation indices will increase, causing potential human health impacts and increased flooding hazards for the community. A warming climate directly impacts the hydrological cycle and patterns. Analysis conducted using the Coupled Groundwater and Surface-Water Flow Model (GSFLOW) found that the McKenzie Creek - an important water provider for Six Nations - is sensitive to climate change due to its reliance on precipitation. Furthermore, study results showed that winter precipitation and streamflow are projected to increase, and snowpack water content is expected to decrease. These changes in streamflow will cause earlier winter-spring flooding events. Furthermore, agricultural production may be affected by reduced spring soil moisture recharge. Additionally, GSFLOW projected little to no change in late spring and summer streamflow which resulted in low water availability (Ptot-ET) during the growing season. Water availability was further examined by assessing future Blue Water (BW) and Green Water (GW) scarcity in the McKenzie Creek watershed. The water footprint method was used to calculate BW and GW scarcity. Study results showed that under current levels of water usage, BW scarcity would be “low” in the future. However, BW scarcity would increase to “significant” levels in the future, if water users started to withdraw more water for consumption, assuming maximum water withdrawal allocation (i.e., 0.47 m3s-1). This level of BW scarcity has the potential to cause ecological degradation and exacerbate water quality issues in the McKenzie Creek watershed. GW scarcity showed a steadily increasing trend throughout the 21st century due to climate warming. Spatial analysis showed that the western portion of the McKenzie Creek watershed may experience slightly higher levels of GW water scarcity in the future because of the lower water holding capacity of the soil. This may cause water users to withdraw more BW resources in western upstream areas, thereby decreasing BW available for downstream communities, including the Six Nations. Such disparity in water use among Indigenous and non-Indigenous communities may affect community relationships and social cohesion in the area. This thesis provides decision makers in Six Nations and more broadly in the McKenzie Creek watershed area with relevant climate change impact data and information that can be used in future climate change adaptation planning, disaster risk mitigation, and water resources management. Moreover, the results highlight the need for a comprehensive climate change vulnerability assessment of the Six Nations. / Thesis / Doctor of Philosophy (PhD)
26

An Analysis of the Changing Land Use Morphology of Waterdown 1795-1960

Donkin, Margaret Kathleen 05 1900 (has links)
Note: Missing "Diagram A: Block Diagram of Site" on page "28a" / <p> A reconstruction and description of the settlement and land use patterns of the village of Waterdown in Southern Ontario, at four periods of time: 1841, 1880, 1920 and 1960. The primary source of data used were Registry Office Documents concerning land transactions. The resulting maps are analyzed using a regression analysis to isolate some factors which have been considerations in any decision to locate within the settlement and through them to predict where future locations are most likely to occur. </p> / Thesis / Master of Arts (MA)
27

Tunnel Valley Genesis and Subglacial Dynamics in South-Central Ontario

Mulligan, Riley January 2019 (has links)
Glacial sediments are found across formerly glaciated regions across the world and host a variety of important resources, ranging from groundwater to hydrocarbons, aggregate material, and mineral deposits. In southern Ontario, Canada, thick successions (up to 200 m) of Quaternary glacial sediments are truncated by large valleys (>30km long, 2 to >8.5 km wide, and up to 200m deep) that formed subglacially and have characteristic morphology and infill stratigraphy. These valleys are interpreted as (a new class of) tunnel valleys and strongly affect groundwater resources and flow systems at local and regional scales. The overall context of the valleys is evaluated through an introduction to the study area, objectives, and background information on subglacial systems and geologic history of south-central Ontario (Chapter 1). Interpretation of valley genesis in Simcoe County is provided through an integrated, multi-faceted approach, involving: description of the morphology and sediment infill succession within the valleys from surficial mapping, sedimentological logging of continuously-cored boreholes, and geophysical surveys (Chapter 2); delineation and characterization of seismic architecture from high-resolution lake-based sub-bottom profiles in one of the valleys (Chapter 3); detailed site-scale field description of the internal characteristics of the regional Late Wisconsin till sheet in various subglacial settings (Niagara Escarpment, uplands, lowlands; Chapter 4); comparison of the characteristics of the subglacial bed within the study area to adjacent regions in southern Ontario (Chapter 5); and a synthesis of the major findings from all the different components of this investigation and suggestions for future work to shed further light on several questions that arise from this study (Chapter 6). Together, key data from these studies of tunnel valleys and related deposits – a near-continuous till sheet on the surface of uplands and along the flanks and floors of the tunnel valleys, multi-stage drumlinization of the till sheet following development of the tunnel valleys, variations in internal facies and physical properties within the till sheet in different subglacial settings, localized distribution of coarse-grained tunnel valley in-fill sediments, and gradational upward transitions from tunnel valley in-fills to fossiliferous proglacial lacustrine sediments – indicate multiple phases of subglacial meltwater, and direct subglacial, erosion and deformation contributed to the development of the valleys over a protracted time period during the Late Wisconsin. Landform and sediment associations within the valleys in Simcoe County and surrounding parts of the bed of the former Laurentide ice sheet in south-central Ontario, are inconsistent with previous conceptualizations involving the presence of large (>1000 km2) subglacial lakes and the storage and discharge of regional-scale subglacial meltwater sheetfloods followed by ice stagnation. This study provides new data and insight to help refine reconstructions and better understand the evolution of past ice dynamics and subglacial processes, evaluate competing theories of regional landscape evolution, and provide new conceptual and (hydro)stratigraphic frameworks for future hydrogeological investigations related to groundwater exploration and use. / Thesis / Doctor of Philosophy (PhD)
28

As We Move Ahead Together: Foregrounding Reconciliating and Renewed First Nation/ Non-Aboriginal Relations in Environmental Management and Research

Dalton, Zoe 15 February 2011 (has links)
The research project upon which this dissertation is based focused on enhancing understandings of the nature of current First Nations/non-Aboriginal relations in environmental management. The project was undertaken as a collaborative initiative by the author, a non-Aboriginal doctoral researcher, in partnership with Walpole Island First Nation. The research served as an opportunity for co-producing knowledge on this subject across cultures and worldviews, and as an effort to build towards our shared aspiration of learning how distinct, yet inextricably linked, First Nations/non-Aboriginal understandings, approaches and worldviews can come together within a context of mutual respect and mutual benefit. The purpose of the research was to investigate the existence and types of issues leading to First Nations/non-Aboriginal tensions in environmental management, to analyze and unpack underlying causes of challenges identified via the research, and to construct avenues for relationship improvement. The research project was grounded in a specific investigation into relations in species at risk conservation and recovery in southern Ontario, Canada. The resulting dissertation is structured around three primary focal areas: 1) investigating and exposing colonial influences at play in Canada’s Species at Risk Act, and offering a new model for co-governance in this arena and beyond; 2) investigating relations surrounding efforts towards traditional ecological knowledge (TEK) transfer in species at risk work, with a focus on exploring issues identified in relation to intellectual imperialism; and 3) introducing and characterizing an original, reconceptualized approach to First Nations/non-Aboriginal relationships in academic research; this approach focused on ways in which investigatory practice can become a means of working towards broader reconciliation goals. Research findings from this dissertation indicate that colonial factors, often unevenly visible to actors involved in environmental management and research, continue to strongly affect the potential for positive, productive First Nations/non-Aboriginal relations in these spheres - including within the species at risk conservation and recovery arena examined here. Project results provide insight into the nature of the factors influencing relationships, as well as potential avenues for addressing the vitality of colonialism in contemporary relations and overcoming the influences on First Nations and on First Nations/non-Aboriginal relationships.
29

As We Move Ahead Together: Foregrounding Reconciliating and Renewed First Nation/ Non-Aboriginal Relations in Environmental Management and Research

Dalton, Zoe 15 February 2011 (has links)
The research project upon which this dissertation is based focused on enhancing understandings of the nature of current First Nations/non-Aboriginal relations in environmental management. The project was undertaken as a collaborative initiative by the author, a non-Aboriginal doctoral researcher, in partnership with Walpole Island First Nation. The research served as an opportunity for co-producing knowledge on this subject across cultures and worldviews, and as an effort to build towards our shared aspiration of learning how distinct, yet inextricably linked, First Nations/non-Aboriginal understandings, approaches and worldviews can come together within a context of mutual respect and mutual benefit. The purpose of the research was to investigate the existence and types of issues leading to First Nations/non-Aboriginal tensions in environmental management, to analyze and unpack underlying causes of challenges identified via the research, and to construct avenues for relationship improvement. The research project was grounded in a specific investigation into relations in species at risk conservation and recovery in southern Ontario, Canada. The resulting dissertation is structured around three primary focal areas: 1) investigating and exposing colonial influences at play in Canada’s Species at Risk Act, and offering a new model for co-governance in this arena and beyond; 2) investigating relations surrounding efforts towards traditional ecological knowledge (TEK) transfer in species at risk work, with a focus on exploring issues identified in relation to intellectual imperialism; and 3) introducing and characterizing an original, reconceptualized approach to First Nations/non-Aboriginal relationships in academic research; this approach focused on ways in which investigatory practice can become a means of working towards broader reconciliation goals. Research findings from this dissertation indicate that colonial factors, often unevenly visible to actors involved in environmental management and research, continue to strongly affect the potential for positive, productive First Nations/non-Aboriginal relations in these spheres - including within the species at risk conservation and recovery arena examined here. Project results provide insight into the nature of the factors influencing relationships, as well as potential avenues for addressing the vitality of colonialism in contemporary relations and overcoming the influences on First Nations and on First Nations/non-Aboriginal relationships.
30

Natural and Anthropogenic Sources Controlling Regional Groundwater Geochemistry on the Niagara Peninsula

Smal, Caitlin January 2017 (has links)
Groundwater chemistry on the Niagara Peninsula has been identified as highly mineralized in comparison to groundwaters collected from the same bedrock formations elsewhere in southern Ontario. Three geochemical zones were discerned using hierarchical cluster analysis and other geochemical and isotopic methods. The Escarpment Zone, located along the Niagara and Onondaga Escarpments, is characterized by unconfined aquifer conditions, parameters reflective of surficial contaminants, including road salt, and elevated HCO3, DOC, NO3-, coliform bacteria and tritium. In contrast, in the Salina Zone thick, low-permeability sediments and gypsiferous bedrock results in highly mineralized groundwaters with Ca-SO4 geochemical facies and elevated S2-, Ca2+, Mg2+, K+, Na+, SO42-, Cl-, Br-, Sr2+, NH4+ and CH4. The Guelph Zone contains the lowest electrical conductivity of the three zones and elevated F-. Outliers exist with groundwater geochemistry that differs from the local geochemical zone and the host aquifer. These sites have elevated SO42- (>1000 to 5200 mg/L) with depleted δ34SSO4 (-2.2 to 14.3‰ VCDT) signatures that differs starkly from Devonian and Silurian evaporites (~20 to 32 ‰) in the host formations. This exogenic SO4 was identified in a cross-formational northeast – southwest linear trend crossing three major groundwater flow systems. The lack of down-stream impact in these systems and tritium groundwater ages that are typically only decades old indicate a young, non-geological origin and implicate anthropogenic activities. Additionally, nine samples were identified with elevated methane concentrations and δ13CCH4 signatures within the thermogenic range. As thermogenic methane is not produced within shallow aquifers and would be short-lived in the presence of the ubiquitous sulfate, these samples imply recent upward migration of methane from depth through vertical conduits. Taken together, the evidence supports large-scale upward movement of fluids in the centre of the Niagara geochemical anomaly and more sporadic upward transport of gases over a wider area of the peninsula. The most likely vector is through corroded and leaking casings or boreholes of abandoned (century) gas wells that are common across the peninsula. / Thesis / Master of Science (MSc)

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