Characteristics of Tornadoes around a Nuclear Power Staion in Hubei
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Abstract:
The characteristics of tornado events around the Xishui nuclear power plant of Hubei Province from 1964 to 2007 are analyzed based on the data from the area of 300 km×300 km around the nuclear power plant in the ways such as meteorological station records, climate impact assessment reports, etc. The results indicate that: there was apparent temporal distribution in those tornado events, such as daily, monthly, and decadal scale variation. The tornadoes concentrated mostly in spring and summer, especially in July, and occurred frequently from midday to early evening, especially at afternoon; however, there was seldom tornado occurred in autumn and winter. The average lasting time for all tornadoes is 27 min. During the past 44 years, tornadoes appeared most frequently in the first seven years of the 21st century. The wind speed grade is mostly 10 on the Beaufort scale, concentrated around 12. The most frequent moving direction of the tornadoes is from west to east, and the average affected width is 120 km, and the average affected length is 2166 km. The most severe tornadoinduced disaster is that induced by the extremely strong wind, which mostly accompanies hailstones, heavy rainfall, and lighting strikes.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.