Principal Investigator:Lesack, Lance Licenced Year(s):
The objectives of this research are to: 1) Improve our understanding of microbial carbon-processing in Mackenzie Delta lakes and how it is affected by the changing water levels/ and 2) Decipher the impact of water level changes on the ability of the Mackenzie Delta to affect riverine nutrient flow to the ocean.
Specific activities for the coming field season include the following:
Principal Investigator:Grogan, Paul Licenced Year(s):201620152014
The goal of this research over the next five years is to substantially advance the understanding of how Canadian arctic tundra ecosystems function, and therefore how they are likely to be affected by perturbations such as climate change, resource development and extraction, and atmospheric pollution. Specifically, the research team will focus on the impacts on vegetation due to warmer summer tempe...
Principal Investigator:Quinlan, Roberto Licenced Year(s):201620152014
This study will examine the effects of permafrost and flooding on the ecological structure of contrasting lakes in the Mackenzie River Delta. Patterned ground marked by ice-wedge polygons is formed by freezing and thawing of the soil, which forms cracks into which ice can spread and cause the soil to uplift. These processes have effects on the hydrology and water chemistry of adjacent aquatic envi...
Principal Investigator:Lesack, Lance Licenced Year(s):2008
The Arctic Ocean receives much higher river inflows than other ocean basins and this has major implications for sea-ice formation, for nutrient supply to the base of aquatic marine foodwebs, and for optical properties of ice-free areas and ice-pack margins via fluxes of dissolved organic matter and riverine particles. The Beaufort Shelf is strongly influenced by Mackenzie River outflows. However, ...
Principal Investigator:Prowse, Terry D Licenced Year(s):200820072006
The researchers want to develop a model for small Arctic lakes that will help them see how sensitive or vulnerable Arctic lake ecosystems are to various forms of disturbance, such as future climate change or water withdrawal. In order to develop their m...
Principal Investigator:Guo, Laodong Licenced Year(s):2005
The purpose of this study is to collect river waters to determine the concentrations of dissolved organic carbon, particulate organic carbon, and nutrients, including nitrate, phosphate and silicate, and to examine their temporary variations related to c...
Principal Investigator:Walker, Tony R Licenced Year(s):2005
The Beaufort Sea shelf is very shallow and the Mackenzie River, which sends freshwater, nutrients, and particles onto the shelf, may have a large influence on its productivity. The main aim of this project is to determine the change in flocculation, part...
Principal Investigator:Wolfe, Brent BBW Licenced Year(s):2007200620052004
This project will formulate a history of the frequency and magnitude of floods and droughts and corresponding ecological responses in the Mackenzie Basin deltas over the past 1000 years. Fieldwork in 2003 will focus on assessing seasonal variability of l...
Principal Investigator:Quinton, William L. Licenced Year(s):2016201520142013201220112010200920082007200620052004
This study seeks to better understand the processes affecting the flow and storage of water in the Lower Liard Valley. This information will be used to improve predictions of runoff and water storage levels. The research in 2003 will involve continued...
Principal Investigator:Marsh, Philip Licenced Year(s):200520042003
The primary objective of this project is to develop improved understanding of the fluxes of water and energy in northern regions, and to develop improved computer models of these processes. The Trail Valley Creek site will be accessed by helicopter and s...