Picture of Cara Nissen
Postdoctoral Scholar
• Ocean biogeochemical cycles • Bio-physical interactions • Ocean modeling
Atmospheric and Oceanic Sciences

Ocean Biogeochemistry Research Group


Modeling of Southern Ocean carbon and nutrient cycles under present and future climates; understanding how ocean circulation, the cryosphere and biology interact to shape high-latitude biogeochemical cycles.


  • PhD: ETH Zürich, Switzerland, 2019
  • MSc: University of Bergen, Norway, 2014
  • BSc: University of Kiel/GEOMAR, Germany, 2012



Seifert, M., Nissen, C., Rost, B., Hauck, J. 2022: Cascading effects augment the direct impact of CO2 on phytoplankton growth in a biogeochemical model. Elementa: Science of the Anthropocene, 10 (1): 00104, DOI: 10.1525/elementa.2021.00104 

Nissen, C., Timmermann, R., Hoppema, M., Gürses, Ö., Hauck, J. 2022: Abruptly attenuated carbon sequestration with Weddell Sea dense waters by 2100. Nature Communications, 13: 3402. DOI: 10.1038/s41467-022-30671-3

Nissen, C., Vogt, M. 2021: Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes. Biogeosciences, 18(1): 251-283. DOI: 10.5194/bg-18-251-2021

Nissen, C., Gruber, N., Münnich, M., Vogt, M. 2021: Southern Ocean phytoplankton community structure as a gatekeeper for global nutrient biogeochemistry. Global Biogeochemical Cycles, 35(8): e2021GB006991. DOI: 10.1029/2021GB006991

Krumhardt, K., Lovenduski, N., Long, M. C., Levy, M., Lindsay, K., Moore, J. K., Nissen, C. 2019: Coccolithophore growth and calcification in an acidified ocean: Insights from Community Earth System Model simulations. Journal of Advances in Modeling Earth Systems, 11(5): 1418-1437. DOI: 10.1029/2018MS001483

Nissen, C., Vogt, M., Münnich, M., Gruber, N., Haumann, F. A. 2018: Factors controlling coccolithophore biogeography in the Southern Ocean. Biogeosciences, 15(22): 6997-7024. DOI: 10.5194/bg-15-6997-2018