Base de données de recherche des TNO

Régions: Gwich'in Settlement Area

étiquettes: physical sciences, water quality, arctic rivers, climate change, hydrology, water chemistry

Objectif(s): To study the six largest rivers in the Arctic: the Mackenzie and Yukon Rivers in North America, and the Ob', Yenisey, Lena, and Kolyma Rivers in Russia.

Description du projet: This licence has been issued for the scientific research application No.5441. The Arctic Great Rivers Observatory project studies the six largest rivers in the Arctic: the Mackenzie and Yukon Rivers in North America, and the Ob', Yenisey, Lena, and Kolyma Rivers in Russia. The research team are interested in understanding how climate change is impacting Arctic rivers. The team take measurements of the concentration of naturally-occurring chemicals (like carbon and nitrogen) in order to determine whether the chemistry of these large Arctic rivers is changing. The research team plan to collect water samples from the Mackenzie River near the Tsiigehtchic ferry crossing. Samples will be collected on six days per year, once every other month. Samples will be collected from boat or through the ice at the well-established site used by the Water Survey of Canada. Water will be collected by immersing a sample bottle directly underneath the water surface, or by using a bottle that is able to collect a water sample from a discrete depth. Samples will be filtered and frozen or refrigerated in plastic bottles. Water temperature and pH will be sampled on each sampling trip. On each sampling day, less than 16 litres of water will be collected. The team will not be collecting any fish or invertebrates. The research team are happy to present the result to community members in Tsiigehtshic, through community presentations, presentations to school kids, or via any other venue. We also make the results of our research available on the project website (www.arcticgreatrivers.org). The fieldwork for this study will be conducted from January 20, 2023 to December 31, 2023.