82 dossier(s) trouvé(s) portant l’étiquette "sea ice" (les projets pluriannuels sont regroupés): Vous ne trouvez pas les résultats souhaités? Essayez la recherche avancée..
chercheur principal:Melling, Humfrey Année(s) de permis:
1996
199519941993199219911990 Résumé:
The base for operations is the PCSP Base at Tuktoyaktuk. The ice measurements are made by untended instruments operating beneath the sea throughout the year. The instruments to be retrieved in March 1996 were positioned in April 1995. They will be recovered through the ice using aircraft-based logistics. The survey of water properties will be conducted at about 15 selected sites in the offshore...
chercheur principal:Ledrew, Ellsworth Année(s) de permis:
1995
19941993199219911990 Résumé:
The researcher will measure the meterorological parameters at two primary sites; first year sea ice and multiyear sea ice. Each site consists of tower based sensors to measure various types of radiation, wind speed, wind direction and air temperatures. In addition, snow and ice temperatures are used. The physical properties of snow (depth, wetness, density, and grain microphotography) will be c...
chercheur principal:Conlan, Kathleen E. Année(s) de permis:1994
1993
1992 Résumé:
The researchers will investigate the effect that sea ice has on shaping and scouring the sea bottom since these actions may play a major role in determining the sea bottom environment and the types of plants and animals that may live there. They will revisit the 1992 site in order to determine what new scours have appeared: those locations with fresh scrapes on the bottom will be monitored over t...
chercheur principal:Kennedy, Kurt Année(s) de permis:
1993
Résumé:
Ice in the Canadian Arctic often cracks and splits, sometimes forming leads. When an offshore oil drilling platform is struck by a piece of ice, it has been observed that in many cases the ice will split. Once the floe has split, the force it can exert on the drilling platform is greatly reduced. This research is intended to determine why and under what conditions ice floes split. A number of ...
chercheur principal:Moore, Robert M. Année(s) de permis:
1993
1992 Résumé:
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...
chercheur principal:Koudys, Al Année(s) de permis:1994
1993
Résumé:
1993 activities represent the first phase of a four-year project to collect water depth and gravity measurements as well as to determine a safe shipping route through the Coronation Gulf and Victoria Strait. Two helicopters will land at predetermined locations on the sea ice to take measurements. Another helicopter will collect water depth information using airborne electromagnetic techniques. ...
chercheur principal:Cota, Glenn Année(s) de permis:19941993
1992
1991 Résumé:
Some natural gases in air react with light and can cause ozone depletion near the earth's surface. Some of these gases are produced by marine plants or algae such as seaweeds and the small single-celled plants causing "brown ice". The researchers will find out what marine plants which contain and/or release these materials called "organohalogen gases". This study will help to determine how much ...
chercheur principal:Rajan, S.D. Année(s) de permis:
1992
1990 Résumé:
This study will assist in understanding the changes that take place in the structure of sea ice during different seasons. These data will help in determining the strength characteristics of sea ice....
chercheur principal:Topham, David Année(s) de permis:
1991
Résumé:
The Researcher and team will deploy an array to nine ARGOS drift buoys over the period of March to May. A small remote submersible equipped with upward looking sonar will be used in the operation....
chercheur principal:Maykut, Gary Année(s) de permis:
1991
Résumé:
The Researcher and team will carry out measurements on the shorefast ice next to the PCSP base at Resolute. They will monitor the amount of incoming light at the surface and within the ice. The sunlight transmitted through the ice cover fuels much of the biological activity that takes place in the polar regions. The data will be used to test a theoretical model for predicting light transmission t...