Biogeosciences
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Articles | Volume 21, issue 24
Articles | Volume 21, issue 24
https://doi.org/10.5194/bg-21-5613-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-5613-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 24
Research article
 | 
16 Dec 2024
Research article |  | 16 Dec 2024

Nitrous oxide (N2O) in Macquarie Harbour, Tasmania

Johnathan Daniel Maxey, Neil D. Hartstein, Hermann W. Bange, and Moritz Müller

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Short summary
The distribution of N2O in fjord-like estuaries is poorly described in the Southern Hemisphere. Our study describes N2O distribution and its drivers in one such system in Macquarie Harbour, Tasmania. Water samples were collected seasonally in 2022 and 2023. Results show the system removes atmospheric N2O when river flow is high, whereas the system emits N2O when the river flow is low. N2O generated in basins is intercepted by the surface water and exported to the ocean during high river flow.
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