Galactic cosmic rays—clouds effect and bifurcation model of the Earth global climate. Part 2. Comparison of theory with experiment |
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| Authors: | Vitaliy D Rusov Vladimir N Vaschenko Elena P Linnik Оksana T Myhalus Yuriy A Bondartchuk Vladimir P Smolyar Sergey I Kosenko Strachimir Cht Mavrodiev Boyko I Vachev |
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| Institution: | 1. Institute of Mountain Risk Engineering, University of Natural Resources and Life Sciences, Peter Jordanstrasse 82, A-1190 Vienna, Austria;2. Laboratory of Dendrogeomorphology, Institute of Geological Sciences, University of Berne, Baltzerstrasse 1+3, CH-3012 Berne, Switzerland;3. Institute for Environmental Sciences, University of Geneva, 7 chemin de Drize, CH-1227 Carouge, Geneva, Switzerland;1. GFZ German Research Centre for Geosciences, Telegrafenberg, D-14473 Potsdam, Germany;2. University of Greifswald, Institute of Geography and Geology, Friedrich-Ludwig-Jahn Strasse 16, D-17487 Greifswald, Germany;3. Humboldt University of Berlin, Institute of Geography, Unter den Linden 6, D-10099 Berlin, Germany;4. University of Marburg, Faculty of Geography, Deutschhausstrasse 10, D-35032 Marburg, Germany |
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| Abstract: | The solution of energy-balance model of the Earth global climate and the EPICA Dome C and Vostok experimental data of the Earth surface palaeotemperature evolution over past 420 and 740 kyr are compared.In the framework of proposed bifurcation model (i) the possible sharp warmings of the Dansgaard-Oeschger type during the last glacial period due to stochastic resonance is theoretically argued; (ii) the concept of climatic sensitivity of water in the atmosphere, whose temperature instability has the form of so-called hysteresis loop, is proposed, and based on this concept the time series of global ice volume over the past 1000 kyr, which is in good agreement with the time series of δ18O concentration in the sea sediments, is obtained; (iii) the so-called “CO2 doubling” problem is discussed. |
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