Dr. Ivy Frenger

Research Scientist at Research Unit Biogeochemical Modelling.

Room: 20-210
Tel.: +49 431 600-4027
Fax: +49 431 600-4469
E-Mail: ifrenger(at)geomar.de

GEOMAR Helmholtz Centre for Ocean Research Kiel
Düsternbrooker Weg 20
D-24105 Kiel

Full CV pdf and ORCID.

Research Interests

My overall objectives are to contribute to a better understanding of the climate system and its response to anthropogenic forcing. My research focuses on  (i) characteristics and effects of ocean mesoscale eddies, (ii) oceanic biophysical and ocean-atmosphere interactions, (iii) the Southern Ocean in a changing climate and (iv) the ocean carbon cycle. My research is based on ocean models, satellite and in situ data.


  • 2013 Ph.D. ETH Zurich, Switzerland
  • 2009 M.Sc. University of Hamburg & Max Planck Institute for Meteorology, Germany
  • 2005 B.Sc. University of Hamburg, Germany

Data & Software

  • Frenger, I., Münnich, M., and N. Gruber (2018). Southern Ocean mesoscale eddies; doi:10.3929/ethz-b-000238826; data access.
  • Haumann, F. A., Gruber, N., Münnich, M., Frenger, I., and S. Kern (2016). Antarctic sea-ice freshwater fluxes associated with freezing, transport, and melting; EnviDat. doi:10.16904/8; data access.
  • Faghmous, J. H., Frenger, I., Yao, Y., Warmka, R., Lindell, A., Kumar V. (2015). Data from: A daily global mesoscale ocean eddy dataset from satellite altimetry; doi:10.5061/dryad.gp40h; data access.
  • Ocean eddy tracking code (Matlab based) available here.

F. Alexander Haumann; Nicolas Gruber; Matthias Münnich; Ivy Frenger; Stefan Kern (2016). Antarctic sea-ice freshwater fluxes associated with freezing, transport, and melting. EnviDat. doi: 10.16904/8.



See OceanRep.

In progress/review:

Rodgers, K., Zhai, P., Slater, R., Carter, B., Iudicone, D., Aumont, O., Farmer,  J., Frenger, I., Jacobson, A., Plancherel, Y. , Resplandy, L., Fassbender,  A., and K. Toyama. Western boundary currents and their extension regions as conduits for the ejection of bomb-radiocarbon from the thermocline. Global Biogeochemical Cycles, in revision.

Frenger, I., de Souza, G., Dufour, C., Sarmiento, J., Gray, A., and S. Griffies. Parameterizing versus resolving the ocean mesoscale: Divergent effects on ocean carbon storage, in prep., to be submitted to Journal of Climate.


Groeskamp, S., de Lavergne, C., Holmes, R. , Tamsitt, V. , Frenger, I. , Chapman, C.C., Newsom, E. , and G.J. Stanley (2019). Climate recorded in seawater: A workshop on water-mass transformation analysis for ocean and climate studies. Bull. Amer. Meteor. Soc., doi:10.1175/BAMS-D-19-0153.1 

Dufour, C., Frenger, I., Frölicher, T., Gray, A., Griffies, S., Morrison, A., Sarmiento, J., and S. Schlunegger (2015). Anthropogenic carbon and heat uptake by the ocean: Will the Southern Ocean remain a major sink? Ocean Carbon & Biogeochemistry, joint US CLIVAR & OCB newsletter, fall edition.

Frenger, I. (2013). On Southern Ocean eddies and their impacts on biology and the atmosphere. PhD thesis, ETH Zurich, Switzerland, doi:10.3929/ethz-a-009938120.

Frenger,I.(2008).Investigation of the impact of land surface changes in West Africa on regional climate: Simulations with the regional climate model REMO (original in German). Master's thesis, UniversityofHamburg,Germany (library sig.: Dipl.-Arb. MI388).

Frenger, I. (2005).TheDatabaseValiData,Proc.COST-ESFWorkshopQualityAssuranceofMirco-ScaleMeteorologicalModels,Hamburg,Germany,150p.

Frenger, I. (2005). Evaluation and processing of in-situ measurements of the project VALIUM (original in German). Bachelor's thesis, UniversityofHamburg,Germany(library sig.: BSC Met 003).