Climate of the Past
Climate of the Past
CP
Articles | Volume 20, issue 8
Articles | Volume 20, issue 8
https://doi.org/10.5194/cp-20-1785-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-20-1785-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 8
Research article
 | 
12 Aug 2024
Research article |  | 12 Aug 2024

Modelling Mediterranean ocean biogeochemistry of the Last Glacial Maximum

Katharina D. Six, Uwe Mikolajewicz, and Gerhard Schmiedl

Data sets

Isoprenoidal GDGT and alkenone-based proxies of sediment core GeoB7702-3 I. S. Castañeda et al. https://doi.org/10.1594/PANGAEA.736909}

(Table~S2) SST esimates as a function of age, Mediterranean sites T. D. Herbert et al. https://doi.org/10.1594/PANGAEA.885603

Compilation of alkenone LGM SST data K. E. Lee https://doi.org/10.1594/PANGAEA.103070

Sea surface temperature reconstruction of sediment core TTR12_293G M. Rodrigo-Gámiz et al. https://doi.org/10.1594/PANGAEA.826065

Model code and software

odel data of the physical-biogeochemical state of the Mediterranean Sea during the Last Glacial Maximum Katharina D. Six https://doi.org/10.5281/zenodo.10624618

Download
Short summary
We use a physical and biogeochemical ocean model of the Mediterranean Sea to obtain a picture of the Last Glacial Maximum. The shallowing of the Strait of Gibraltar leads to a shallower pycnocline and more efficient nutrient export. Consistent with the sediment data, an increase in organic matter deposition is simulated, although this is based on lower biological production. This unexpected but plausible result resolves the apparent contradiction between planktonic and benthic proxy data.
Read more