Abstract
Experimental field and laboratory studies on washout of radionuclides from the snow cover during snow melting were carried out in the winter of 2005/06. In the field studies, a specially equipped runoff site was used. In the laboratory conditions, the experiments were conducted using prepared soil monoliths. In the winter of 2006, 25 g/m2 of water-free cesium chloride (CsCl) and 25 g/m3 of strontium chloride (SrCl2) were put onto the snow cover surface of the runoff site. The snow surface of the soil monolith was coated with a 137Cs-bearing solution, then with SrCl2. Under experimental conditions, practically no surface runoff from the runoff site was recorded. The experiments with the soil monoliths demonstrated that the coefficient of the liquid washout of 137Cs normalized to the runoff layer was within 0.9 × 10−6–1.2 × 10−4 mm−1, and that of 90Sr normalized to the runoff layer was within 2 × 10−–1.6 × 10−4 mm−1.
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Original Russian Text © S.M. Vakulovskii, M.A. Novitskii, N.F. Mazurin, E.G. Tertyshnik, L.M. Khachaturova, 2007, published in Meteorologiya i Gidrologiya, 2007, No. 8, pp. 46–54.
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Vakulovskii, S.M., Novitskii, M.A., Mazurin, N.F. et al. Preliminary results of modeling studies on washout of stable and radioactive analogs of 90Sr and 137Cs from snow-covered areas. Russ. Meteorol. Hydrol. 32, 508–513 (2007). https://doi.org/10.3103/S1068373907080055
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DOI: https://doi.org/10.3103/S1068373907080055