Dr. Marvin Lorenz

My research focuses on studying the physics of estuaries and coastal seas. I use numerical models to perform idealized and realistic simulations to better understand driving mechanisms and interactions. Special interest lies on the Total Exchange Flow theory (TEF) which can be used to describe the exchange flow of an estuary with the ambient ocean in terms of bulk values. Furthermore, I am interested in storm surges in the Baltic Sea and coastal lagoons, e.g., the Bodden.

My current focus:

• Isohaline properties of estuaries
• Water Mass Transformation in estuaries and the coastal ocean
• Surge modelling in the Western Baltic Sea
• Influence of mean sea level rise on storm surges in shallow coastal lagoons

Together with Florian Börgel I programmed a python package: pyTEF, which can be used to analyze the exchange flows using model data.

Publications

Lorenz, M., Klingbeil, K., and Burchard, H. (2021). Impact of Evaporation and Precipitation on Estuarine Mixing. Journal of Physical Oceanography 51, 4, 1319-1333, https://doi.org/10.1175/JPO-D-20-0158.1

Burchard, H., Gräwe, U., Klingbeil, K., Koganti, N., Lange, X., and Lorenz, M. (2021). Effective diahaline diffusivities in estuaries. Journal of Advances in Modeling Earth Systems, 13, e2020MS002307. https://doi.org/10.1029/2020MS002307

MacCready, P., McCabe, R. M., Siedlecki, S. A., Lorenz, M., Giddings, S. N., Bos, J., Albertson, S., Banas, N. S., and Garnier, S. (2021) Estuarine circulation, mixing, and residence times in the salish sea. Journal of Geophysical Research: Oceans, 126, e2020JC016738, https://doi.org/10.1029/2020JC016738

Lorenz, M., Klingbeil, K., and Burchard, H. (2020) Numerical Study of the Persian Gulf using an Extended Total Exchange Flow Analysis Framework, J. Geophys. Res. Oceans, 125, e2019JC015527, https://doi.org/10.1029/2019JC015527