Social and Behavioral Sciences Commons^™

Paleohydrologic Reconstruction Of Three Shallow Basins, Slave River Delta, Nwt, Using Stable Isotope Methods, Cherie Mongeon

Theses and Dissertations (Comprehensive)

p>The long-term natural hydrological variability of the Slave River Delta (SRD), NWT, is not well documented and needs to be further developed to provide temporal context to understand and evaluate impacts of Slave River (SR) floodwater influence and climate variability and change on contemporary hydro-ecological doncidiotns of the SRD. The SRD has broad ecological and cultural significance, as it provides extensive habitate for wildlife and is important for local First Nations community who have an historical connection with the delta and its resources. Concners have been raised over recently reported drying trends in the SRD over the past few …

Hydrological Response Patterns And Solute Flux In Canadian Shield Basins: Role Of Different Physical Features And Antecedent Moisture Conditions, Jessica Mueller

Theses and Dissertations (Comprehensive)

Patterns of stream flow in relatively undisturbed Canadian Shield basins are closely linked to their physical and vegetative characteristics and meteorological conditions. The physical characteristics include topography, soil-till composition, depth and structure, slope morphology and bedrock geology. Hydrological flowpaths through, and in-situ chemical processes in the soil-till matrix are influenced greatly by the composition of these features and by the antecedent hydrological conditions preceding a given storm or snowmelt event.

A long term data set, collected by the Dorset Environmental Science Centre, is used to examine eight forested basins within the Muskoka-Haliburton region of south-central Ontario. The basins have a …

Reconstruction Of Peace River Flood Frequency And Magnitude For The Past ∼600 Years From Oxbow Lake Sediments, Peace-Athabasca Delta, Canada, Suzanne Jarvis

Theses and Dissertations (Comprehensive)

Ice-jam flooding in the Peace-Athabasca Delta (PAD) is an important hydrological process for the replenishment of shallow perched basins that support a highly productive northern ecosystem. The PAD is also used by nearby First Nations communities for traditional lifestyle occupations such as hunting and trapping. Previous research on laminated sediments collected from two oxbow lakes periodically connected to major Peace River distributaries has resulted in a 300-year record of flood frequency. In an effort to extend this record and broaden the understanding of the relationships among climate variability, Peace River hydrology, and delta hydroecology, a series of vibracores and gravity …