untitled4Matthew Gillman

Supervisors: Dr. Scott Lamoureux and Dr. Melissa Lafrenière

A key objective of my research is to understand the development of hydraulic gradients and subsurface preferential flow pathways adjacent to streamflow in the High Arctic at the Cape Bounty Arctic Watershed Observatory on Melville Island, Nunavut. Further focus is directed towards investigating seasonal dynamics of nitrogen, a nutrient that is limiting to primary production, in subsurface waters along the hillslope-hyporheic-channel continuum and relating biogeochemical processes to hydrological conditions. With this research I hope to provide insight into both the role of hydrological conditions in controlling nutrient characteristics of subsurface waters, and how subsurface hydrology and seasonal nutrient dynamics may be influenced by a changing climate in the High Arctic.

untitled2Amanda Schevers

Supervisors: Dr. Scott Lamoureux and Dr. Melissa Lafrenière

My research is focused on the broad-scale hydrological pathways occurring in cold environments, and how a changing climate, degrading permafrost, and landscape stability impact these pathways. To do this I will be conducting field work to compare two watersheds at the Cape Bounty Arctic Watershed Observatory (CBAWO) in Nunavut. Past work in the area has shown that these watersheds have a different chemical composition suggesting that they have different pathways operating. Analyzing the chemistry of the water, determining the sources, and using slope to help determine residence times will aid in a better understanding of the overall system. This increased understanding of the large-scale hydrological pathways will help to predict how these systems respond to climate change.

untitled3Jessica Peters

Supervisor: Dr. Scott Lamoureux

For my research I am focusing on understanding subsurface water storage and movement in Upper Goose at Cape Bounty. I am doing this by characterizing the cryostructure and development of the active layer. I am also exploring key hydrologic properties (sources of water, transient time) in the active layer in Upper Goose. I will be using stable water isotopes stable water isotopes to determine rates of water movement in the subsurface. This research will advance knowledge of the factors and processes that affect subsurface flow pathways, an important predictor of water supply and quality in northern regions.

McFaddenSarah McFadden

Supervisor: Dr. Scott Lamoureux

My research  lie in the use of fine scale photogrammetry to detect changes within environments, particularly permafrost change and subsurface water systems. I work with UAV and ground-based landscape measurement systems, as well as hydrometric approaches to trace water flow in Arctic soils.


untitled5Mike Pope

Supervisor: Dr. Scott Lamoureux

The main focus of my research involves the cycling and fate of Mercury in High Arctic lakes and rivers. More specifically I am examining the relationship between internal lake processes and Mercury concentration, chemical form, and sequestration. I am also examining the role of landscape type as a local source for Mercury contamination at the watershed scale.


cb2016Gillian Thielapple-touch-icon-180x180

Supervisor: Dr. Melissa Lafrenière

The aim of my research is to understand how climate warming affects organic matter cycling in High Arctic watersheds. Specifically, I am interested in identifying key controls on the biodegradability of organic matter and how they vary seasonally and spatially at the CBAWO. A better understanding of these controls is important since the mobilization of biodegradable organic matter affects the health of terrestrial and aquatic ecosystems in the Arctic and contributes to greenhouse gas emissions which amplify climate warming.

thumb_img_4795_1024Valerie Freemantleapple-touch-icon-180x180

Supervisor: Dr. Paul Treitz

My research project will be investigating environmental change at Cape Bounty, NU in the Canadian High Arctic. I will be using annual high resolution satellite imagery to investigate changes in vegetation (cover, greenness and distribution) and permafrost and subsequent re-vegetation of the disturbed areas. In addition, I will be comparing  the trends in the satellite imagery to carbon flux measurements from eddy covariance towers and vegetation samples in 2003, 2008 and 2017. Multi-year investigations like this are are crucial in improving our understanding of the Arctic’s natural variation present and how it responds to changes in climate.

Jackie Hungapple-touch-icon-180x180

Supervisor: Dr. Dave Atkinson

My research looks at the spatial and temporal dynamics of soil nutrients in High Arctic wetlands. I am interested in seeing how the nutrient cycles, specifically nitrogen, are influencing biophysical processes like carbon fluxes and trace gas emissions and whether there are spatial and temporal variations in nutrient availability throughout the growing season. Coming from a remote sensing background, I am also looking at how the physical aspects of these High Arctic wetlands are seen through satellite imagery.

cbMadeleine Garibaldi

Supervisor: Dr. Philip Bonnaventure

The goal of my research is to investigate thermal variability, resulting from differential snow cover, over two watersheds in the Cape Bounty Arctic Watershed Observatory (CBAWO).  This approach will consider the High Arctic as heterogeneous and will involve the creation of three continuous surface layers for air temperature, ground surface temperature, and the temperature at top of permafrost (TTOP). Using this information, I will then determine the spatial variability of projected climate change over the CBAWO to hopefully allow for a broader evaluation of projected climate change over the High Arctic.