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Geomorphic and Fluvial Response to Recent Permafrost Disturbances in a High Arctic River, Cape Bounty, Nunavut
(2011-12-09)
Using a sediment budget approach, suspended sediment transport dynamics were studied over the 2010 summer runoff season in the 8 km2 West River catchment at the Cape Bounty Arctic Watershed Observatory (CBAWO), Melville ...
High-Latitude Responses of Diatom and Chironomid Assemblages to Regional Climate Changes and Other Environmental Stressors
(2015-07-03)
High-latitude freshwater ecosystems are amongst the most vulnerable to climate change impacts. However, the response to warming is rarely straightforward and may be modulated by local or regional factors, producing variability ...
The Effects of Climate on Microalgae Growth in Arctic Wastewater Stabilization Ponds
(2015-06-02)
The research presented in this thesis consists of work conducted in two studies designed to evaluate temperature effects on microalgal growth in Arctic wastewater stabilization ponds (WSPs). These systems are commonly used ...
Modelling Biophysical Variables and Carbon Dioxide Exchange in Arctic Tundra Landscapes using High Spatial Resolution Remote Sensing Data
(2013-01-04)
Vegetation community patterns and processes are indicators and integrators of climate. Recently, scientists have shown that climate change is most pronounced in circumpolar regions. Arctic ecosystems have traditionally ...
A comparative paleolimnological assessment of the influences of early Arctic population groups on freshwater ecosystems from southern Baffin Island, Nunavut
(2011-10-04)
Recent paleolimnological research in the eastern Canadian high Arctic on the ecological impact of the Thule c.1000-1500 AD has documented the influence of prehistoric anthropogenic activities. Six lake and pond sites ...
Sedimentary structural indicators of Arctic terrestrial and aquatic processes
(2008-05-28)
Annually and subannually laminated lacustrine sediments potentially contain a wide range of information that can be interpreted for paleoenvironmental reconstructions. These laminae are produced by the physical and ...
The Governance of Waste in Iqaluit, Nunavut
(2015-09-10)
Through ethnographic fieldwork and archival research, this thesis examines the historical and contemporary governing practices that inform waste management in Iqaluit, Nunavut. I draw on governance theory to critically ...
Seasonal Ground Surface Change Detected by DInSAR at Cape Bounty, Melville Island, Nunavut
Differential interferometry of synthetic aperture radar (DInSAR) analysis can be used to generate high-precision surface displacement maps in continuous permafrost environments, capturing isotropic surface subsidence and ...
Hydrological and Hydrochemical Responses From Thawing Permafrost in the Canadian Arctic
The objectives of this research are to better understand: (1) how Arctic watersheds respond in terms of hydrological processes to deepening active layers, (2) what the short and long-term changes are to surface water ...
Modeling Biophysical Variables in the Canadian High Arctic Using Synthetic Aperture Radar Data
(2014-02-04)
The estimation or modeling of biophysical variables such as surface roughness, vegetation phytomass, and soil moisture in the Arctic is an important step towards understanding arctic energy fluxes, effects of changing ...