Evaluating the Biogeochemistry of Dissolved Inorganic Carbon in the Canadian Arctic Archipelago Using Stable and Radiocarbon Isotopes ...

Human activity is unequivocally contributing to climate change and global warming (IPCC 2023). The oceans act to moderate climate by removing CO₂ (a greenhouse gas) from the atmosphere via air-sea gas exchange and sequestration as dissolved inorganic carbon (DIC). DIC is the largest actively cycling...

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Bibliographic Details
Main Author: Jasperse, Liam
Format: Thesis
Language:English
Published: Université d'Ottawa | University of Ottawa 2024
Subjects:
Arctic
Dissolved Inorganic Carbon
Carbon Cycling
Climate Change
Radiocarbon
Stable Carbon
Oceanography
FOS Earth and related environmental sciences
Canadian Arctic Archipelago
Pacific
Arctic Archipelago
Climate change
Global warming
Ice
Pacific Arctic
permafrost
Sea ice
Online Access:https://dx.doi.org/10.20381/ruor-30272
https://ruor.uottawa.ca/handle/10393/46109
Description
Summary:Human activity is unequivocally contributing to climate change and global warming (IPCC 2023). The oceans act to moderate climate by removing CO₂ (a greenhouse gas) from the atmosphere via air-sea gas exchange and sequestration as dissolved inorganic carbon (DIC). DIC is the largest actively cycling pool of carbon on Earth (38,000 Gt) and approximately half of all anthropogenic carbon emissions have already been absorbed by the world's oceans (IPCC 2023). Despite this, the Arctic is still warming at rates up to four times faster than the global average (Rantanen et al., 2022). Research suggests the Canadian Arctic Archipelago (CAA) is an important region for the marine carbon cycle (e.g. Papakyriakou & Miller, 2011; Zeidan et al., 2022) but its response to climate change remains poorly constrained. The CAA connects the Pacific, Arctic, and Atlantic Oceans. Melting permafrost, sea ice, changing biogeochemistry and increased freshwater flux within have the potential to impact local and global processes, ...

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