Articles | Volume 21, issue 4
https://doi.org/10.5194/cp-21-753-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-21-753-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Apr 2025
Research article |
| 04 Apr 2025
| 04 Apr 2025
Environmental controls of rapid terrestrial organic matter mobilization to the western Laptev Sea since the Last Deglaciation
Tsai-Wen Lin
CORRESPONDING AUTHOR
Marine Geochemistry Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Department of Geosciences, University Bremen, 28334, Bremen, Germany
Tommaso Tesi
Institute of Polar Sciences, National Research Council, 40129, Bologna, Italy
Jens Hefter
Marine Geochemistry Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Hendrik Grotheer
Marine Geochemistry Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Department of Geosciences, University Bremen, 28334, Bremen, Germany
MARUM Centre for Marine Environmental Sciences, University Bremen, 28334, Bremen, Germany
Jutta Wollenburg
Marine Biogeosciences Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Florian Adolphi
Marine Geochemistry Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Department of Geosciences, University Bremen, 28334, Bremen, Germany
MARUM Centre for Marine Environmental Sciences, University Bremen, 28334, Bremen, Germany
Henning A. Bauch
Marine Geology Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Research Division 1: Ocean Circulation and Climate Dynamics, GEOMAR, Helmholtz Centre for Ocean Research, 24148, Kiel, Germany
Alessio Nogarotto
Institute of Polar Sciences, National Research Council, 40129, Bologna, Italy
Juliane Müller
Department of Geosciences, University Bremen, 28334, Bremen, Germany
MARUM Centre for Marine Environmental Sciences, University Bremen, 28334, Bremen, Germany
Marine Geology Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Gesine Mollenhauer
CORRESPONDING AUTHOR
Marine Geochemistry Section, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, 27570, Bremerhaven, Germany
Department of Geosciences, University Bremen, 28334, Bremen, Germany
MARUM Centre for Marine Environmental Sciences, University Bremen, 28334, Bremen, Germany
Data sets
Bulk organic matter δ13C, biomarker, and microfossil radiocarbon data of cores PS51/154-11 and PS51/159-10 from the Laptev Sea, Arctic Ocean Lin Tsai-Wen et al. https://doi.org/10.1594/PANGAEA.980076
Short summary
In order to understand the mechanisms governing permafrost organic matter remobilization, we investigated organic matter composition during past intervals of rapid sea-level rise, of inland warming, and of dense sea-ice cover in the Laptev Sea. We find that sea-level rise resulted in widespread erosion and transport of permafrost materials to the ocean but that erosion is mitigated by regional dense sea-ice cover. Factors like inland warming or floods increase permafrost mobilization locally.
In order to understand the mechanisms governing permafrost organic matter remobilization, we...
