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The spatial distribution of deposited seeding material in the Earth boundary layer during weather modification

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Abstract

Cloud seeding projects may have the time scale of half a century and cover the planetary-scale surface. Such activities among the positive also have negative consequences that include environmental pollution. Year after year cloud seeding over certain areas could produce large amounts of seeding agents washed out in precipitation. The sampling of these deposits is therefore important, but not applied in large space and time scales due to a high cost. As an alternative, the cloud seeding project measurements may be used for finding the deposit spatial pattern and locations of its maximum. In this study, we established the method for finding the spatial distribution of deposited silver iodide over a selected area after hail suppression using the observed characteristics of seeded hailstorms. The estimation of the silver iodide deposit maximum is 155 μg m−2 during a 6-year period. Our findings agree well with those obtained from sampling silver content in precipitation during the other convective cloud seeding experiments. On the other hand, our method gives an answer of where to place the samplers, and hence more detailed chemical analysis and monitoring can be done in the future. The proposed methodology may be applied for any other target area and cloud seeding scenario.

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Acknowledgments

This research was supported by the Ministry of Science of Serbia. We gratefully acknowledge Mr. Dragomir Bulatović for technical preparation of the figures.

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  1. Institute of Meteorology, University of Belgrade, P.O. Box 44, 16 Dobračina Str., 11000, Belgrade, Serbia

    M. Ćurić & D. Janc

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  1. M. Ćurić
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  2. D. Janc
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Correspondence to M. Ćurić.

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Responsible Editor: R. Roebeling.

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Ćurić, M., Janc, D. The spatial distribution of deposited seeding material in the Earth boundary layer during weather modification. Meteorol Atmos Phys 118, 31–36 (2012). https://doi.org/10.1007/s00703-012-0207-7

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