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Articles | Volume 21, issue 20
Articles | Volume 21, issue 20
https://doi.org/10.5194/bg-21-4569-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-4569-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 20
Research article
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23 Oct 2024
Research article | Highlight paper |  | 23 Oct 2024

Seafloor sediment characterization improves estimates of organic carbon standing stocks: an example from the Eastern Shore Islands, Nova Scotia, Canada

Catherine Brenan, Markus Kienast, Vittorio Maselli, Christopher K. Algar, Benjamin Misiuk, and Craig J. Brown

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This proof-of-concept study demonstrates that high-resolution seafloor substrate maps and spatial organic carbon models can be used to estimate the organic carbon on the seafloor. This information is critical for evaluating the carbon sequestration capacity of continental shelves and their relevance for climate regulation.
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Quantifying how much organic carbon is stored in seafloor sediments is key to assessing how human activities can accelerate the process of carbon storage at the seabed, an important consideration for climate change. This study uses seafloor sediment maps to model organic carbon content. Carbon estimates were 12 times higher when assuming the absence of detailed sediment maps, demonstrating that high-resolution seafloor mapping is critically important for improved estimates of organic carbon.
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