The chernobyl accident: Modelling of dispersion over europe of the radioactive plume and comparison with air activity measurements |
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| Institution: | 1. The Fredy & Nadine Herrmann Institute of Earth Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 91904, Israel;2. Department of Earth and Planetary Sciences, University of California in Santa Cruz, 1156 High St., Santa Cruz, CA 95060, USA;3. Geological Survey of Israel, 30 Malkhe Israel, Jerusalem 95501, Israel |
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| Abstract: | Following the release of radionuclides from the Chernobyl power plant accident, a long-range transport and deposition model is used to describe the plume dispersion over Europe. The aim of this study is the validation of a fast Lagrangjan model and a better understanding of the relative impact of some mechanisms, such as the initial plume rise. Comparisons between results and 137Cs measurement activity are discussed according to spatial and temporal variations. It is shown that many measurements can be explained only if the initial plume rise taken at 925, 850 and 700mb is considered. |
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