NWT RESEARCH DATABASE

Principal Investigator: Isaac, George
Licensed Year(s): 1998
Summary: Arctic clouds are dominant on average covering 40 to 60% of the skies over the Arctic ocean. They exert a large influence on the radiation balance in the Arctic, where climate change effects are predicted and observed to be largest in the northern hemisphere. The FIRE III field project will use in-situ measurements obtained using instrumental aircraft, in combination with concurrent satellite dta,...

Principal Investigator: Burn, Chris R
Licensed Year(s): 1997 1996 1995 1994 1993 1992 1991
Summary: The purpose is to collect samples of ground ice and to measure air, ground and lake temperatures. We use the information to help understand how the permafrost in the area has changed in the last few thousand years, in order to determine what might happen in the future....

Principal Investigator: Hill, Philip R.
Licensed Year(s): 1994 1993 1992
Summary: The researchers will examine the rate of coastal change in the outer Mackenzie Delta region in order to understand the factors contributing to present delta formation and coastal erosion, and to understand how global climate warming may affect coastal change. Surveys on beaches, sand bars and delta lakes will be conducted....

Principal Investigator: Bone, Robert M.
Licensed Year(s): 1994
Summary: Should global warming occur, the environment and human landscape may be altered. The researchers will be using public information (Statistics Canada censuses and public documents) to collect data for this study: they will use this data to examine the possible impacts that global warming might have on the Mackenzie Basin ecosystem and the human population residing in this region. The results of ...

Principal Investigator: Wein, Ross
Licensed Year(s): 1993 1992 1989 1988 1987
Summary: In previous research in the 1970's, experiments and surveys provided information on the recovery rates of vegetation in response to disturbances from human activities. Several predictions about the long-term recovery of vegetation were made at that time. We are now collecting data to determine if these predictions reflect what is actually occurring. This information provides information about l...

Principal Investigator: Henry, Gregory H.R.
Licensed Year(s): 1995 1994 1993 1991
Summary: This study continues from the research conducted in 1991 where we examined the plant community and assessed plant distribution as the subarctic forest changes to tundra. We are interested in how the smaller plant species are influenced by changes in the number of trees that are nearby as well as changes in climate. Permanent plots will be established in order to monitor any changes in the plant ...

Principal Investigator: Vardy, Sheila
Licensed Year(s): 1993 1992
Summary: This research is part of an international project that is aimed at documenting the history of changes in the treeline during the Holocene era. While much is known about the environment and climate of this era, little is known about the development of peatlands during this time. I will collect data on peat layering, pollen and fossils in order to determine how the peatlands developed during this ...

Principal Investigator: Nichols, Harvey
Licensed Year(s): 1993
Summary: Tree-line plant species are sensitive to changes in climate. Most trees growing in the tree-line reproduce by `layering' which means that they do not produce seeds but instead the tree limbs of individual trees produce roots to generate another `tree'. Seeds can only be produced when the summer climate is warm enough. By monitor- ing the reproduction of trees in the tree-line, information can be...

Principal Investigator: Marsh, Philip
Licensed Year(s): 1993 1992 1991
Summary: This long-term, ongoing study is aimed at understanding the factors controlling water levels and the availability of nutrients in a variety of lakes in the Mackenzie Delta. This work will allow us to better understand the natural Mackenzie Delta ecosystem, and to make better predictions of the effect of environmental change on the Delta. Cores of sediment will be collected from lake bottoms to d...

Principal Investigator: Moore, Robert M.
Licensed Year(s): 1993 1992
Summary: Previous research has indicated that compounds containing bromine could play a role in the destruction of the ozone layer. This study is part of on-going research that is examining how important northern marine waters are as sources of bromine to the Arctic atmosphere. Seawater, snow and ice will be collected and assessed for bromine. In addition, measurements will be taken to determine if seaw...