• Christoph, M., and U. Ulbrich, 1999: Fluctuations of the NAO and north atlantic storm track activity in the ECHAM4/OPYC3 coupled AOGCM. IUGG99 Birmingham, Abstracts, B41.
  • Klawa, M., J. Wefers und U. Ulbrich, 1999: Schadenintensive Sturmereignisse in Mitteleuropa im Zusammenhang mit der Nordatlantischen Oszillation. Symposium „Naturkatastrophen in Mittelgebirgsregionen“, 11./12. Oktober 1999 in Karlsruhe.
  • Knippertz, P.; Ulbrich, U., 1999: Changing cyclones and low-level winds over the north-Atlantic and Europe in a transient GHG experiment. Geophysical Research Abstracts, 1, No. 2, 552.
  • Leckebusch, G. and P. Speth, 1999: Meteorological Interpretation of Results from Antarctic Ice Cores by using an AGCM under Different Paleoclimate Boundary Conditions. 10th Symposium on Global Change Studies. 10-15 January 1999, 79th AMS Annual Meeting, Dallas, Texas, 294-295.
  • Pinto, J.G.; Ulbrich, U.; Speth, P., 1999: The variability of cyclone activity in the Mediterranean in the last 40 years and its impact on precipitation variability. Proceedings from the Plinius Conference on Mediterranean Storms, Maratea October 1999.
  • Ulbrich, U., and M. Christoph, 1999: North Atlantic Storm Track variability related to NAO and PNA. 4th international conference on modelling of global climate change and variability, 13-17September 1999, Max-Planck-Institut für Meteorologie Hamburg, Abstracts p. 146
  • Wefers, J. , und U. Ulbrich, 1999: Die Auftretenswahrscheinlichkeit von Hochwasserereignissen. Symposium „Naturkatastrophen in Mittelgebirgsregionen“, 11./12. Oktober 1999 in Karlsruhe, Tagungsband, S. 23-25.