CYCLONES, TORNADOES, THUNDERSTORMS, SQUALLS

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چکیده

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منابع مشابه

Prevention of destructive tropical and extratropical storms , hurricanes , tornadoes , dangerous thunderstorms , and catastrophic

Tropical cyclones and storms, hurricanes, powerful thunderclouds, which generate tornadoes, destructive ex-tratropical cyclones, which result in catastrophic floods, are the powerful cloud systems that contain huge amount of water. According to the hypothesis argued in this paper, an electric field coupled with powerful clouds and electric forces play a cardinal role in supporting this huge mas...

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Convective Modes for Significant Severe Thunderstorms in the Contiguous United States. Part III: Tropical Cyclone Tornadoes

A gridded, hourly, three-dimensional environmental mesoanalysis database at the Storm Prediction Center (SPC), based on objectively analyzed surface observations blended with the Rapid Update Cycle (RUC) model-analysis fields and described in Parts I and II of this series, is applied to a 2003–11 subset of the SPC tropical cyclone (TC) tornado records. Distributions of environmental convective ...

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Tweeting and tornadoes

Social Media and micro-blogging is being used during crisis events to provide live up-to-date information as events evolve (before, during and after). Messages are posted by citizens or public officials. To understand the effectiveness of these messages, we examined the content of geo-located Twitter messages (“tweets”) sent during the Moore, Oklahoma tornado of May 20, 2013 (+/-1day) to explor...

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Forecasting Tornadoes in Georgia

Some climatological data on the seasonal, diurnal, and geographical distribut>iorl of tornadoes in Georgia are presented, and the tornado "season" is defined as occurring from February through April. Twelve different storms producing t,ornadoes during one or more 12-hour forecast periods are studied for synoptic similarities. A mean tornado sounding and a 700-mb. composite chart, taken from dat...

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Convected Charge in Thunderstorms

The charge transport within thunderclouds by the convective motions of the cloud is examined. I n the presencc of the primary positive dipole, shielding charge distributions are formed within thc lower and upper cloud boundaries as the result of ion conduction from the free air and ion capture by droplets and precipitation in peripheral cloud layers. Cloud droplets positivcly charged by the con...

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ژورنال

عنوان ژورنال: Monthly Weather Review

سال: 1918

ISSN: 0027-0644,1520-0493

DOI: 10.1175/1520-0493(1918)46<23b:ctts>2.0.co;2