CliSAP successfully finished in 2018. Climate research continues in the Cluster of Excellence "CLICCS".

Dr. habil Thomas Frisius

Participating Researcher
CliSAP, Universität Hamburg

Universität Hamburg, CliSAP
Meteorological Institute
Room 311
Grindelberg 5
20144 Hamburg
Tel.: +49 40 42838 5068
E-mail: thomas.frisiusdummy@uni-hamburgdummy2.de

Research interests

  • Tropical cyclones
  • Ocean circulation,
  • Atmospheric Dynamics
  • Baroclinic Waves
  • Dynamical Systems

Frisius, T., and M. Lee, 2016: The impact of gradient wind imbalance on tropical cyclone intensification within Ooyama’s three-layer model. Journal of the Atmospheric Sciences, in press

Frisius, T. , 2015: What controls the size of a tropical cyclone? Investigations with an axisymmetric model. Quarterly Journal of the Royal Meteorological Society, 141, 2457-2470. doi:10.1002/qj.2537.

Schönemann, D., and T. Frisius, T., 2014: Dynamical system properties of an axisymmetric convective tropical cyclone model. Tellus Series A - Dynamic Meteorology and Oceanography, 66, 22456. doi:10.3402/tellusa.v66.22456.

Frisius, T., 2014: On the hypothetical utilization of atmospheric potential energy. Meteorologische Zeitschrift, 23, 263-267. doi:10.1127/0941-2948/2014/0538.

Frisius, T., D. Schönemann, and J. Vigh, 2013: The impact of gradient wind imbalance on potential intensity of tropical cyclones in an unbalanced slab boundary layer model. Journal of the Atmospheric Sciences, 70, 1874-1890. doi:10.1175/JAS-D-12-0160.1.

Frisius, T., and D. Schönemann, 2012: An extended model for the potential intensity of tropical cyclones. Journal of the Atmospheric Sciences, 69, 641-661. doi:10.1175/JAS-D-11-064.1.

Schönemann, D., and T. Frisius, 2012: Dynamical system analysis of a low-order tropical cyclone model. Tellus Series A - Dynamic Meteorology and Oceanography, 64, 15817. doi:10.3402/tellusa.v64i0.15817.

Espa, S., I. Bordi, T. Frisius, K. Fraedrich, A. Cenedese, and A. Sutera, A., 2012: Zonal jets and cyclone-anticyclone asymmetry in decaying rotating turbulence: laboratory experiments and numerical simulations. Geophysical and Astrophysical Fluid Dynamics, 106, 557-573. doi:10.1080/03091929.2011.637301.

Pelkowski, J., and T. Frisius, 2011: The Theoretician's Clouds-Heavier or Lighter than Air? On Densities in Atmospheric Thermodynamics. Journal of the Atmospheric Sciences, 68, 2430-2437. doi:10.1175/JAS-D-11-085.1.

Frisius, T., and T. Hasselbeck, 2009: The effect of latent cooling processes in tropical cyclone simulations. Quarterly Journal of the Royal Meteorological Society, 135, 1732-1749. doi:10.1002/qj.495.

Frisius, T., K. Fraedrich, X. Zhu, and W. Wang, 2009: A spectral barotropic model of the wind-driven world ocean. Ocean Modelling, 30, 310-322. doi:10.1016/j.ocemod.2009.07.008

Frisius, T., 2006: Surface-flux-induced tropical cyclogenesis within an axisymmetric atmospheric balanced model. Quarterly Journal of the Royal Meteorological Society, 132, 2605-2626. doi: 10.1256/qj.06.03

Wacker, U., T. Frisius, and F. Herbert, 2006: Evaporation and precipitation surface effects in local mass continuity laws of moist air. Journal of the Atmospheric Sciences, 63, 2642-2652. doi: 10.1175/JAS3754.1

Frisius, T., 2005: A balanced model of an axisymmetric vortex with zero potential vorticity. Tellus Series A - Dynamic Meteorology and Oceanography, 57, 55-64. doi: 10.1111/j.1600-0870.2005.00089.x

Frisius, T., 2003: On the development of a cyclone-anticyclone asymmetry within a growing baroclinic wave. Journal of the Atmospheric Sciences, 60, 2887-2906. doi: 10.1175/1520-0469(2003)060<2887:TDOACA>2.0.CO;2

Fraedrich, K., and T. Frisius, 2001: Two-level primitive equation baroclinic instability on an f-plane. Quart. J. Roy. Meteor. Soc., 127, 2053-2068. doi: 10.1002/qj.49712757611

Frisius, T., 1999: A simple model for the baroclinic life cycle of meridionally elongated eddies in uniform shear. Journal of the Atmospheric Sciences, 56, 3508-3519. doi: 10.1175/1520-0469(1999)056<3508:ASMFTB>2.0.CO;2

Frisius, T., 1998: A mechanism for the barotropic equilibration of baroclinic waves. Journal of the Atmospheric Sciences, 55, 2918-2936.doi: 10.1175/1520-0469(1998)055<2918:AMFTBE>2.0.CO;2

Frisius, T., F. Lunkeit, K. Fraedrich, and I. N. James, 1998: Storm-track organization and variability in a simplified atmospheric global circulation model. Quarterly Journal of the Royal Meteorological Society, 124, 1019-1043. doi: 10.1002/qj.49712454802

Courses

  • Conceptual models of complex systems: Development, application and analysis [Summer term]

           1 Introduction
           2 Mathematical foundations
           3 Model development

  • Praktische Einführung in die Progammierung von globalen Wettervorhersagemodellen [Winter term]

           1 Einleitung
           2 Grundgleichungen des globalen Atmosphärenmodells und Näherung
           3 Transformation der Vertikalkoordinate
           4 Horizontale Diskretisierung, Anwendung auf die isentrope Atmosphäre
           5 Zeitintegrationsverfahren, numerische Stabilität
           6 Numerische Filterung: Polfilter, Diffusion und Lärmfilter
           7 Wettervorhersage und Vorhersagbarkeit
           8 Temperatur als inaktive Feldgröße
           9 Vertikale Diskretisierung