MONALISA: Modelling and Reconstruction of North Atlantic
Climate System Variability (Work package 1.1)
Thomas Stocker, Christoph C. Raible, Masakazu Yoshimori,
Neil Edwards, Urs Beyerle, & Manuel Renold
Climate and Environmental Physics (KUP)
Physics Institute, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland

   i n t r o d u c t i o n
   g o a l s
   m e t h o d s
   s t a t u s
   r e s u l t s
   p u b l i c a t i o n s
   c o o p e r a t i o n s
   c o n t a c t    u s
   l i n k s

Methods

  • Modelling the last 500 years with the CCSM-Paleo (version 1.4 or 2.0) by using reconstructd extrenal forcing fields (solar variations, volcanoes, methane, and carbon dioxide). An ensemble of 5 to 10 simulations is planned.

  • Comparison with a Control simulation for present day (1990) climate conditions (1000 years integration).

  • Comparison with reconstructions of NAO-indices, precipitation, surface temperature, and pressure fields (e.g. Luterbacher et al. 1999; 2002), and ice-core data.

  • Testing the hypothesis of decadal regimes (Raible et al. 2001; 2002)

  • Using "extreme-value" statistics for storm- and blocking-events



References:

Luterbacher, J., C. Schmutz, D. Gyalistras, E. Xoplaki, and H. Wanner, 1999: Reconstruction of monthly NAO and EU indices back to AD 1675. Geophys. Res. Lett., 26, 2745-2748.

Luterbacher, J., E. Xoplaki, D. Dietrich, R. Rickli, J. Jacobeit, C. Beck, D. Gyalistras, C. Schmutz, and H. Wanner, 2002: Reconstruction of sea-level pressure fields over the eastern North Atlantic and Europe back to 1500. Clim. Dym., 19, 545-561.

Raible, C. C., U. Luksch, and K. Fraedrich, 2002: A Conceptual View on Decadal Regimes in the Northern Hemisphere, Geophy. Res. Lett., submitted.

Raible, C. C., U. Luksch, K. Fraedrich, and R. Voss, 2001: North Atlantic decadal regimes in a coupled GCM simulation, Clim. Dyn., 18, 321-330.