RT Monograph SR 00 A1 Ganopolski, A.V. A1 Krabec, J. T1 Climate Simulations with an Improved 2-D Zonal Climate Model YR 1994 FD 1994-04 SP 39 AB 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. PB WP-94-022 PP IIASA, Laxenburg, Austria AV Published LK https://pure.iiasa.ac.at/id/eprint/4187/