Base de données de recherche des TNO

étiquettes: physical sciences, geology, environmental monitoring, coastal erosion, coastline

Objectif(s): To improve our knowledge of physical conditions in the coastal zone in order to help government agencies, corporations, and local residents understand, mitigate and reduce the impacts of natural changes and industrial or community development; to monitor coastal change along the Beaufort sea coastline; to monitor delta subsidence in the modern Mackenzie Delta; and to expand our marine geological knowledge of Tuktoyaktuk Harbour.

Description du projet: The western Arctic coast is among the most rapidly changing coastlines in the world and one of the most sensitive to climate change. The research objective is to improve our knowledge of physical conditions in the coastal zone in order to help government agencies, corporations, and local residents understand, mitigate and reduce the impacts of natural changes and industrial or community development. The project consists of three targets: 1. Monitor coastal change along the Beaufort Sea coastline. High resolution GPS surveys will take place at a number of coastal locations throughout the Mackenzie Delta, Richards Island, and Tuktoyaktuk Peninsula area. A helicopter will be used as the primary means of transportation to and from each site. No more than a few hours will be spent at each site. The surveyor will walk along the coastline recording positional data from a RTK-GPS system corrected to a local base station; 2. Monitor delta subsidence in the modern Mackenzie Delta. High resolution GPS loggers will be positioned on permanent markers that have been placed throughout the Mackenzie Delta. Loggers will record positional information for a total of 3 days. A helicopter will be used as the primary means of transportation to and from each site. Researchers will only be on site for less than 1 hour during deployment and retrieval; and 3. Expand our marine geological knowledge of Tuktoyaktuk Harbour. Low energy echo sounders (10 - 200 KHz) will be used to survey the bottom and sub-bottom geology of Tuktoyaktuk Harbour. Small boats up to 18 ft. in length will be the primary means of data collection. On-site consultation and results reporting has been undertaken in all communities and to the Inuvialuit Game Council (IGC) and the Fisheries Joint Management Committee (FJMC) by the Geological Survey of Canada at various times over the past several years. Project participants will be available to present past results and future project plans to the local communities of Aklavik, Tuktoyaktuk and Inuvik during the field campaign. This Beaufort Regional Environmental Assessment (BREA) funded project has a number of outreach opportunities within the ILA during the next two years of funding, including community consultation and BREA day. The fieldwork for this study will be conducted from August 6, 2012 to August 31, 2012.