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Atmos. Chem. Phys. Discuss., 6, 10811-10836, 2006
www.atmos-chem-phys-discuss.net/6/10811/2006/ doi:10.5194/acpd-6-10811-2006 © Author(s) 2006. This work is licensed under a Creative Commons License. |
A criterion to discriminate between solar and cosmic ray forcing of the terrestrial climate
1Institut für Theoretische Physik IV, Ruhr-Universität Bochum, 44780 Bochum, Germany
2Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Kiel, 24118 Kiel, Germany
Abstract. There is increasing evidence that there exist interstellar-terrestrial relations and that the heliosphere's effectivity to serve as a protecting shield for the Earth, specifically against cosmic rays, is varying in time. Nonetheless, a debate is going on whether, amongst other drivers, the Sun or the cosmic rays are influencing the terrestrial climate, particularly on periods of hundred years and shorter. As the modelling of the transport of cosmic rays in the heliosphere has evolved from pure test particle simulations to far more consistent treatments, one can explain various correlations within the framework of physical models and one can make quantitative predictions regarding terrestrial indicators of interstellar-terrestrial relations. This level of understanding and modelling allows to identify a criterion with which one can discriminate between solar and cosmic ray forcing on a period of several decades. We define such a criterion and discuss related existing observations.
Citation: Fichtner, H., Scherer, K., and Heber, B.: A criterion to discriminate between solar and cosmic ray forcing of the terrestrial climate, Atmos. Chem. Phys. Discuss., 6, 10811-10836, doi:10.5194/acpd-6-10811-2006, 2006.