%0 Report %9 IIASA Working Paper %A Ganopolski, A.V. %A Krabec, J. %C IIASA, Laxenburg, Austria %D 1994 %F iiasa:4187 %T Climate Simulations with an Improved 2-D Zonal Climate Model %U https://pure.iiasa.ac.at/id/eprint/4187/ %X An improved version of the 2-D Zonal Climate Model in comparison with that published in WP-93-58 is presented. The modifications introduced lead to a closer agreement of the global energy distribution with current estimates and to a more complex behaviour of the coupled model, namely to the occurrence of internal oscillations in the climate system on a decadal time scale. The results give additional support to the idea that simplified climate models can be successfully used as a climatic part of integrated models of climate change.