Spatial heterogeneity of sedimentary organic carbon in fjords around Stavanger, Norway – implications for upscaling

Diesing, Markus; Bøe, Reidulv; Elvenes, Sigrid; Knies, Jochen; Smeaton, Craig

doi:10.5194/bg-23-3005-2026

Articles | Volume 23, issue 9

https://doi.org/10.5194/bg-23-3005-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-23-3005-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 9

Research article

|

05 May 2026

Research article |

| 05 May 2026

Spatial heterogeneity of sedimentary organic carbon in fjords around Stavanger, Norway – implications for upscaling

Markus Diesing, Reidulv Bøe, Sigrid Elvenes, Jochen Knies, and Craig Smeaton

Supplement

https://doi.org/10.5194/bg-23-3005-2026-supplement

Data sets

Input data to spatially predict organic carbon stocks, carbon reactivity index and delta 13C in fjords around Stavanger, Norway M. Diesing and C. Smeaton https://doi.org/10.5281/zenodo.18172827

Model code and software

diesing-ngu/Stavanger_organic_carbon: Biogeosciences M. Diesing https://doi.org/10.5281/zenodo.19662219

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Short summary

We investigate accumulation rates, stocks, provenance and lability of sedimentary organic carbon in fjords around Stavanger, Norway. We find that all measured parameters show high variability and spatial heterogeneity over short spatial scales. Our results call into question assumptions that are made when upscaling local studies for global assessments. We propose steps to better account for spatial heterogeneity when upscaling to higher levels.