Dr. Stefan Vater

Research scientist Numerical Methods in Geosciences
CliSAP/CEN, Universität Hamburg

Research Focus

Geophysical phenomena, such as atmospheric flows or tsunami events, incorporate a wide range of space and time scales. However, often one is only interested in the effective dynamics on a certain scale. Furthermore, the dynamics are usually perturbations around some balanced regime, which is maintained in its mean. My main research interest is the construction and the mathematical analysis of advanced and efficient numerical methods, which take care about these peculiarities of geophysical problems in order to get accurate and meaningful results in simulations. In particular, these are so called well-balanced methods, which correctly reproduce the aforementioned equilibria, and asymptotically adaptive methods, which incorporate results obtained by single- and multiple-scales asymptotics of the geophysical problems under consideration.

My current focus is the simulation of tsunami events, where the coupling between the dynamic rupture which is triggered by the earth quake and the resulting tsunami waves is of main interest. This is conducted in the interdisciplinary project ASCETE, in which scientists from earth quake modeling, numerical modeling of tsunami events, and the development of efficient algorithms for high performance computing work together.


CEN - Center for Earth System Research and Sustainability
Universität Hamburg
Grindelberg 5
D-20144 Hamburg, Germany

Room 409.1

Phone: +49-40-42838-7746
Fax : +49-40-42838-7712
Email: stefan.vaterdummy@uni-hamburgdummy2.de


Peer-Reviewed Articles



Technical Reports

  • S. Vater, N. Beisiegel & J. Behrens: A limiter-based well-balanced discontinuous Galerkin method for shallow-water flows with wetting and drying: Triangular grids. submitted.
    (preprint, PDF)
  • S. Vater & R. Klein: Stability of a Cartesian Grid Projection Method for Zero Froude Number Shallow Water Flows. ZIB-Report 07-13, Konrad-Zuse-Zentrum für Informationstechnik, 2007.
  • S. Vater: A New Projection Method for the Zero Froude Number Shallow Water Equations. PIK Report No. 97, Potsdam Institute for Climate Impact Research, 2005.
    (PDF), [bibtex entry]

Lecture Notes

  • R. Klein, S. Vater, E. Päschke & D. Ruprecht: Multiple scales methods in meteorology. In: H. Steinrück (ed.), Asymptotic Methods in Fluid Mechanics: Survey and Recent Advances, Springer, vol. 523 of CISM International Centre for Mechanical Sciences, pp. 127-196, 2011.
    [bibtex entry]
  • R. Klein & S. Vater: Mathematische Modellierung in der Klimaforschung. Fachbereich Mathematik und Informatik, Freie Universität Berlin, WS 2003/2004.
    (PDF), [bibtex entry]

Short Vita