Picture of Cara Nissen
Research Associate
• Ocean biogeochemical cycles • Biophysical interactions • Ocean modeling
Atmospheric and Oceanic Sciences

Ocean Biogeochemistry Research Group

Bio

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.

Education

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

Research

Selected publications

See Google Scholar profile for a full list of publications.

Nissen, C., N. S. Lovenduski, M. Maltrud, A. Gray, Y. Takano, K. Falcinelli, J. Sauvé, K. Smith, 2024: LIGHT-bgcArgo-1.0: using synthetic float capabilities in E3SMv2 to assess spatiotemporal variability in ocean physics and biogeochemistry, Geoscientific Model Development, 17, 6415–6435. DOI: 10.5194/gmd-17-6415-2024.

Nissen, C., Lovenduski, N. S., Brooks, C. M., Hoppema, M., Timmermann, R., Hauck, J., 2024: Severe 21st-century ocean acidification in Antarctic Marine Protected Areas. Nature Communications, 15, 259. DOI: 10.1038/s41467-023-44438-x.

Hauck, J., Gregor, L., Nissen, C., Patara, L., Hague, M., Mongwe, P., Bushinsky, S., Doney, S. C., Gruber, N., Le Quéré, C., Manizza, M., Mazloff, M., Monteiro, P. M. S., Terhaar, J., 2023: The Southern Ocean carbon cycle 1985-2018: mean, seasonal cycle, trends, and storage. Global Biogeochemical Cycles, 37: e2023GB007848. DOI: 10.1029/2023GB007848

Seifert, M., Nissen, C., Rost, B., Vogt, M., Völker, C., Hauck, J., 2023: Interaction matters: Bottom-up driver interdependencies alter the projected response of phytoplankton communities to climate change. Global Change Biology, 29(15): 1-25. DOI: 10.1111/gcb.16799

Hauck, J., Nissen, C., Landschützer, P., Rödenbeck, C., Bushinsky, S., Olsen, A. 2023: Sparse observations induce large biases in estimates of the global ocean CO2 sink: an ocean model subsampling experiment. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 381(2249). DOI: 10.1098/rsta.2022.0063

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., 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