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Open AccessArticle

Three-Dimensional Modelling of Precipitation Enhancement by Cloud Seeding in Three Different Climate Zones

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Institute of Meteorology, University of Belgrade, Dobračina 16, 11000 Belgrade, Serbia
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Department of Meteorology, Republic Hydrometeorological Service of Serbia, Kneza Višeslava 66, 11000 Belgrade, Serbia
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Wind Engineering, Energy and Environment (WindEEE) Research Institute, Western University, London, ON N6M 0E2, Canada
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Department of Civil Infrastructure and Environment Engineering, Masdar Institute, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, UAE
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(6), 294; https://doi.org/10.3390/atmos10060294
Received: 8 April 2019 / Revised: 18 May 2019 / Accepted: 21 May 2019 / Published: 29 May 2019
(This article belongs to the Section Aerosols)
This study numerically investigates precipitation enhancement from cumuliform clouds in three different climate regions: (1) Arid climate of the United Arab Emirates (UAE); (2) maritime climate of Thailand; and (3) continental climate of Serbia. Recently developed core/shell sodium chloride (NaCl)/titanium dioxide (TiO2) nanostructure (CSNT) aerosol was tested as a precipitation enhancer in all three climate regions. Previous experimental studies in cloud chambers and idealized numerical simulations demonstrated that CSNT is a significantly more effective precipitation enhancer than the traditional NaCl. Here, CSNT and NaCl seeding agents are incorporated into the WRF (Weather Research and Forecasting) model microphysics with explicate treatment of aerosol. Our results show that CSNT is a profoundly more effective precipitation enhancer in the case of arid climate characterized with low humidity. The accumulated surface precipitation in the arid test was 1.4 times larger if CSNT seeding agent was used instead of NaCl. The smallest difference in the effectiveness between CSNT and NaCl was observed in the maritime case due to their similar activation properties at high values of relative humidity. View Full-Text
Keywords: weather modification; cloud seeding; WRF; precipitation enhancement; climate zones; seeding material weather modification; cloud seeding; WRF; precipitation enhancement; climate zones; seeding material
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Ćurić, M.; Lompar, M.; Romanic, D.; Zou, L.; Liang, H. Three-Dimensional Modelling of Precipitation Enhancement by Cloud Seeding in Three Different Climate Zones. Atmosphere 2019, 10, 294.

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