NWT RESEARCH DATABASE

Principal Investigator: Digel, Mark
Licensed Year(s): 1998 1997
Summary: Water quality field work involves drilling with an ice auger on four small lakes in the Den Lake watershed to determine if water is present below the ice, and if so, the depth of the water. The concentration of dissolved oxygen will be measured to determine the lake's potential to support overwintering fish. The results of this late winter survey will be used to identify the need for further fishe...

Principal Investigator: Hallinan, Thomas J.
Licensed Year(s): 1996
Summary: The observations will be made by an all-sky TV camera. The camera is computer controlled and should only require minimal attendance. The camera will record the auroras over Fort Smith with 1 minute resolution, storing the images on coputer disk and transferring them to the Internet. Hoping to use the Upper Air Station as this facility would be ideal for optical observations....

Principal Investigator: Wescott, E.M.
Licensed Year(s): 1995 1994
Summary: Beams of barium and calcium ions, from a rocket launched from Poker Flats, Alaska, will be released into the aurora. These beams will be observed using two low-light-level TV systems set up outside the Upper Air Station in Fort Smith. Each system will be filtered for barium ion light and calcium ion light respectively. The data will be recorded on video tape. The experiment will take place nea...

Principal Investigator: Clowes, R. M.
Licensed Year(s): 1995
Summary: This "Deep Probe" seismic refraction experiment will record energy that is as deep as the Asthenosphere (may be as deep as 200 km below the earth's surface). The experiment makes use of very large explosions that will generate seismic waves of sufficient power at low frequency to tranverse these great distances....

Principal Investigator: Lowe, Carmel
Licensed Year(s): 1995
Summary: The researchers will take gravity readings and soundings at specified stations on the frozen ice. In addition a latitude and longitude fix will be taken at each station....

Principal Investigator: Swyripa, Murray
Licensed Year(s): 1993
Summary: Northward flowing rivers are thought to be major ways in which contaminants are introduced to the Arctic Ocean. As part of an on-going study, river water and sediments will be collected over the course of the year and assessed for the presence of contaminants. A total of 12 rivers in the Canadian arctic mainland will be sampled in this study, including the Mackenzie, Coppermine, Burnside, Ellice...

Principal Investigator: Gregor, Dennis J.
Licensed Year(s): 1993
Summary: Contaminants are carried in the air to the arctic during the winter when large-scale wind movements bring these contaminants from industrialized locations in North America, Europe and Asia to the north. Snow can collect these compounds from the air and bring them to the ground where they can accumulate. Thus, it is important to study the amount of contaminants in snow to determine the types and ...

Principal Investigator: Maffey, Murray
Licensed Year(s): 1993 1992
Summary: This ongoing project has several activities associated with the study of fire ecology in the N.W.T.. The researchers are involved with the collection of data at a prescribed burn site located at Little Rat Lake (Hook Lake) near Ft. Resolution. They are also participating in the fire history study in the Mackenzie Bison Sanctuary. Finally, crew leaders from the Ft. Simpson initial attack teams w...

Principal Investigator: Sherstone, David A.
Licensed Year(s): 1993 1992 1991 1990 1988
Summary: Ice gauges are installed on river ice once the ice is strong enough to support researchers (20 gauges in the Mackenzie Delta and 15 gauges on Hay River). The gauges are read every 10 days to obtain total ice thickness, white ice thickness and snow depth. From these data, the rates of ice growth and decay can be calculated, and the approximate date of maximum ice thickness can also be determined....

Principal Investigator: Johnstone, Robert
Licensed Year(s): 1994 1993 1992 1991
Summary: The researcher and his team will traverse throughout the map area examining bedrock exposures and sampling. Observations may help construct a geological map showing lithology, structure and mineral occurences. Rock samples will be collected for geochemical and petrological analysis. The results of the survey will be presented in the form of poster displays, talks, reports and a map for distribu...