Base de données de recherche des TNO

Régions: Inuvialuit Settlement Region, Gwich'in Settlement Area, North Slave Region

étiquettes: climate change, greenhouse gases, snow, cold-climate processes

Objectif(s): (1) To develop, deploy, and refine low-cost sensors to measure green house gas (GHG) concentrations. (2) To identify GHG concentration patterns within snowpacks at a landscape scale (1 to 10 square km). (3) To optimise winter carbon cycling in climate models, and scale up simulations of carbon from small landscape scales.

Description du projet: This licence has been issued for the scientific research application No. 5822. The objectives of this project are: (1) To develop, deploy, and refine low-cost sensors to measure green house gas (GHG) concentrations. (2) To identify GHG concentration patterns within snowpacks at a landscape scale (1 to 10 square km). (3) To optimise winter carbon cycling in climate models, and scale up simulations of carbon from small landscape scales. Field work will take place twice a year, in late March-early April (spring) and in early September (autumn). The spring campaigns will focus on determining snow properties and natural emissions of carbon dioxide and methane from soils using portable gas analysers and collect data from previously installed instruments. The autumn campaigns will take place to install small temporary instruments that will measure gas concentrations within snow throughout winter. The base camp is located at Trail Valley Creek, working with colleagues at Wilfrid Laurier University (WLU) who have had a camp there from 1991 to about 2005, and 2015 to present. We will work with ARI in Inuvik to get field support and work in conjunction with both WLU and ARI staff during the winter. The researchers plan to take snow property measurements and gas concentrations at both the Trail Valley Creek Research Station site and Havikpak Creek research site (near the Inuvik Airport), as well as a series of previously instrumented sites along the Tuktoyaktuk highway currently overseen by the ARI staff as part of the Sentinel monitoring project. The research team also plans to visit previously sampled northern boreal forest sites near Yellowknife as a study comparison whenever possible during the planned campaigns. The research team will use social media commonly used by the Inuvik Community to communicate our field efforts and results. In addition, the team will continue to work with Annika Trimble (ARI) to give formal project presentations and to provide science workshops and activities in local secondary schools. The fieldwork for this study will be conducted from: March 01 - December 31, 2024