113 Dossier(s) trouvé(s) à l’emplacement "Région désignée des Gwich'in" (les projets pluriannuels sont regroupés):
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Environmental change in the 20th century, Mackenzie Delta region, Northwest Territories
chercheur principal:
Année(s) de permis: 2008 2007 2006 2005
Résumé: The impact of climate change on forest ecosystems in the Mackenzie Delta is being studied using dendrochronology. Earlier studies indicate a negative relationship between tree growth and summer temperatures. Summer temperatures may be exceeding the physiological threshold of northern trees or perhaps the trees are drought stressed. Manual and automatic dendrometers will be used to measure tree gro...


Enhancement of Permafrost Monitoring Network and Collection of Baseline Terrain Information in the Mackenzie Valley Corridor - Gwich'in Settlement Area
chercheur principal:
Année(s) de permis: 2006
Résumé: Gaps exist in the Mackenzie monitoring network in the permafrost zones north of Norman Wells, the Mackenzie Delta region and shorelines and coastlines. Enhancement of the network is essential to provide baseline information for developments such as pipelines, highways and power lines, and to assess the impact of such development and/or climate change on the environment. In this project, temperatur...


Examining Spatial and Temporal Variation of Ground Temperatures in the Mackenzie Delta, Northwest Territories
chercheur principal:
Année(s) de permis: 2007 2006
Résumé: The Mackenzie Delta is sensitive to both climate warming and human development. This project will contribute to a better understanding of ground temperatures in the Mackenzie Delta and will provide a baseline from which to assess future changes and cumulative impacts. Ground temperatures will be collected from the southern, central and outer delta regions. In the summer, about 30 boreholes (l...


Autecology of Green Alder in the Mackenzie Delta
chercheur principal:
Année(s) de permis: 2006 2005 2004
Résumé: The objective of this research is to explore the influence of temperature and disturbance on green alder by comparing alder characteristics on sites with different average temperatures and disturbance histories. Understanding of factors that influence alder populations today will assist in predicting the likely consequences of rising temperatures and increased disturbance on tall shrubs. A min...


Community-Based Climate Change Impacts and Adaptation Workshops
chercheur principal:
Année(s) de permis: 2006 2005
Résumé: This project will consist of community workshops on selected climate change issues. A specific impact will be identified as a theme for a 1-2 day workshop in up to 5 regions across the NWT, and strategies to deal with those impacts will be mapped out. Objectives are to bring traditional knowledge holders and scientists together to share observations and predictions, discuss what likely impacts wi...


Climate Geochemistry
chercheur principal:
Année(s) de permis: 2005 2004
Résumé: 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...


Snow accumulation/runoff in high latitude permafrost basins
chercheur principal:
Année(s) de permis: 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1990
Résumé: The primary objective of this project is to improve 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 snowmobile...


Assessing Impacts of Permafrost Degradation on Community Infrastructure Due to Climate Change: Modeling, Simulation and Adaptation Costing
chercheur principal:
Année(s) de permis: 2004
Résumé: Structural infrastructure in northern communities is dependent on the permafrost layer for stability. The thawing and disappearance of the permafrost layer has accelerated in recent decades, damaging buildings and other infrastructure, and causing public...


Pemafrost and Sump Investigations in the Mackenzie Delta Region
chercheur principal:
Année(s) de permis: 2004 2003 2002 2001 2000 2000 1999
Résumé: This research will investigate: A) the physical and chemical characteristics of permafrost in the Mackenzie Delta region to identify areas of ice-rich permafrost or thaw sensitive terrain. Second; B) the effect of permafrost degradation on water quality...


Devon Canada Corporation - Environmental Studies of the Ice Environment for the Proposed Beaufort Sea Offshore Drilling Program
chercheur principal:
Année(s) de permis: 2003
Résumé: A team consisting of two ice specialists, one locally hired wildlife monitor and one locally hired field technician will be flown by helicopter from Inuvik to perform on-ice field work at Devon's western and eastern offshore drilling locations. No low-l...


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