Biogeosciences
Biogeosciences
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Articles | Volume 22, issue 12
Articles | Volume 22, issue 12
https://doi.org/10.5194/bg-22-2871-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-2871-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 12
Research article
 | 
20 Jun 2025
Research article |  | 20 Jun 2025

Organic carbon, mercury, and sediment characteristics along a land–shore transect in Arctic Alaska

Frieda P. Giest, Maren Jenrich, Guido Grosse, Benjamin M. Jones, Kai Mangelsdorf, Torben Windirsch, and Jens Strauss

Supplement

https://doi.org/10.5194/bg-22-2871-2025-supplement

Data sets

Biomarkers of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska Frieda Giest et al. https://doi.org/10.1594/PANGAEA.971595

Sedimentological characteristics of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska Frieda Giest et al. https://doi.org/10.1594/PANGAEA.971244

Biogeochemical characteristics of sediment cores from a land – shore transect in the Teshekpuk Lake Region in Arctic Alaska Frieda Giest et al. https://doi.org/10.1594/PANGAEA.971246

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Short summary
Climate warming causes permafrost to thaw, releasing greenhouse gases and affecting ecosystems. We studied sediments from Arctic coastal landscapes, including land, lakes, lagoons, and the ocean, finding that organic carbon storage and quality vary with landscape features and saltwater influence. Freshwater and land areas store more carbon, while saltwater reduces its quality. These findings improve predictions of Arctic responses to climate change and their impact on global carbon cycling.
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