Name
Dissolved Carbon Dioxide and Methane in Glacial Meltwater: Insights from Athabasca, Dome, and Robertson Glaciers, Canadian Rockies
Date & Time
Monday, May 27, 2024, 11:30 AM - 11:45 AM
Description

This presentation explores the concentrations of methane (CH4) and carbon dioxide (CO2) in glacial meltwater, focusing on their environmental implications. Glacial meltwater is a significant contributor to freshwater resources and plays a crucial role in global biogeochemical cycles. However, the dynamics of CH4 and CO2 in glacial meltwater systems are not well understood. Previous research on this topic has focused on Greenland, where highly elevated methane concentrations have been found and attributed to activity of anaerobic archaea. My study examines CH4 and CO2 concentrations in glacial meltwater from three glaciers, including Athabasca, Dome, and Robertson Glaciers in the Canadian Rockies. I investigate factors influencing CH4 and CO2 levels, ion concentrations, organic and inorganic carbon levels and suspended sediment characteristics. Preliminary findings suggest variable CH4 concentrations, ranging from below atmospheric equilibrium to levels significantly above it. In contrast, CO2 concentrations consistently remain below atmospheric equilibrium. We also observe spatial and temporal variations in CH4 and CO2 levels, with potential relationships to meltwater flow rates, sediment transport, and microbial communities. Understanding the dynamics of CH4 and CO2 in glacial meltwater is crucial for assessing their role in greenhouse gas emissions, water quality, and ecosystem health. This research contributes to broader efforts in environmental monitoring and management, highlighting the importance of glacial meltwater as a unique and dynamic component of freshwater systems.

Location Name
Conference Room - 2228
Full Address
Carleton University - Richcraft Hall
1125 Colonel By Dr
Ottawa ON K1S 5B6
Canada
Session Type
Breakout Session