Estimates of carbon sequestration potential in an expanding Arctic fjord (Hornsund, Svalbard) affected by dark plumes of glacial meltwater

Szeligowska, Marlena; Benkort, Déborah; Przyborska, Anna; Moskalik, Mateusz; Moreno, Bernabé; Trudnowska, Emilia; Błachowiak-Samołyk, Katarzyna

doi:https://doi.org/10.5194/bg-21-3617-2024

Articles | Volume 21, issue 16

https://doi.org/10.5194/bg-21-3617-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-21-3617-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 16

Research article

|

20 Aug 2024

Research article |

| 20 Aug 2024

Estimates of carbon sequestration potential in an expanding Arctic fjord (Hornsund, Svalbard) affected by dark plumes of glacial meltwater

Marlena Szeligowska, Déborah Benkort, Anna Przyborska, Mateusz Moskalik, Bernabé Moreno, Emilia Trudnowska, and Katarzyna Błachowiak-Samołyk

Supplement

https://doi.org/10.5194/bg-21-3617-2024-supplement

Data sets

Arctic Sea and Ice Surface Temperature Marlena Szeligowska https://doi.org/10.6084/m9.figshare.24142965.v1

Results of GOTM-ECOSMO-E2E-Polar in Hornsund (SPM scenario) Marlena Szeligowska et al. https://doi.org/10.6084/m9.figshare.24143013.v5

Results of GOTM-ECOSMO-E2E-Polar in Hornsund (noSPM scenario) Marlena Szeligowska et al. https://doi.org/10.6084/m9.figshare.24142992.v2

A consistent High Arctic climatological dataset (1979-2018) of the Polish Polar Station Hornsund (SW Spitsbergen, Svalbard) Tomasz Wawrzyniak and Marzena Osuch https://doi.org/10.1594/PANGAEA.909042

Suspended Particulate Matter (SPM) concentration with the Loss on Ignition (LOI) in Hansbukta and other regions in Hornsund Fjord M. Moskalik et al. https://dataportal.igf.edu.pl/dataset/spm-hornsund

Sediment Flux (SedFlux) with the Loss on Ignition (LOI) in Hansbukta and other regions in Hornsund Fjord M. Moskalik et al. https://dataportal.igf.edu.pl/dataset/sedflux-hornsund

Inter-calibrated Temperature and Salinity in-depth profiles in Hornsund Fjord M. Moskalik et al. https://dataportal.igf.edu.pl/dataset/inter-calibrated-temperature-and-salinity-in-depth-profiles-in-hornsund-fjord

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Short summary

The European Arctic is experiencing rapid regional warming, causing glaciers that terminate in the sea to retreat onto land. Due to this process, the area of a well-studied fjord, Hornsund, has increased by around 100 km² (40%) since 1976. Combining satellite and in situ data with a mathematical model, we estimated that, despite some negative consequences of glacial meltwater release, such emerging coastal waters could mitigate climate change by increasing carbon uptake and storage by sediments.