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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 ...
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 ...
A Polysaccharide Extracted From Sphagnum Moss as Antifungal Agent in Archaeological Conservation
(2010-01-14)
On the basis of the well-known preservative properties of Sphagnum moss, a potential opportunity to use moss polysaccharides (Sphagnan) in art conservation was tested. Polysaccharides were extracted from the moss (S. ...
Comparing Two Remediation Alternatives for Diesel-Contaminated Soil in the Arctic Using Life Cycle Assessment
(2012-10-09)
Contaminated sites in the Arctic pose risks to the environment and human health, and provide a major challenge to scientists attempting to carry out remediation on these sites. This project examines background information ...
Biophysical Remote Sensing and Terrestrial CO2 Exchange at Cape Bounty, Melville Island
(2012-01-13)
Cape Bounty, Melville Island is a partially vegetated High Arctic landscape with three main plant communities: polar semi-desert (47% of the study area), mesic tundra (31%) , and wet sedge meadows (7%). The objective of ...
Limnology and paleolimnology of adjacent High Arctic lakes with an emphasis on terrestrial-aquatic linkages: Cape Bounty, Melville Island, Nunavut
(2011-11-01)
Our knowledge of how Arctic freshwater ecosystems will respond to continued climate change and variability is fundamentally limited by logistical difficulties of such remote research, resulting in relatively sparse long-term ...