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| Name | Thunderstorm and Lightning | Dr Soma Sen Roy, Sc-F, IMD | Initiatives | New initiatives & approach | |
| Video Uploader | Video From Disaster Risk Reduction and Resilience |
| Upload Date | This Video Uploaded At 27-07-2020 04:16:37 |
| Video Discription | Thunderstorm/Lightning, Dust/Hailstorm, Squall, and Strong wind are hazardous and cause risk to life and public property. There are potentially hazardous for the aviation sector as well in addition to transport, power, communication and other socio-economic sectors. Thunderstorms have some important characteristic such as the formation of Squall, strong updraft and downdraft, towering cumulonimbus associated with turbulence and icing, in cloud electrification and associated lightning, localized Strong rain and hailstorm. Lightning being the flow of electric charges, any electrically conductive body can be affected by lightning. Hence the electrical appliances if operated during the lightning period can be affected by lightning. Similarly, the living beings coming in contact with lightning directly or indirectly through electrical conductors can be affected, often leading to death. Lightning strikes the Earth 50 to 100 times each second. Over 20, 000 people get affected by lightning all over the world and several thousand die due to lightning strike every year. The population density, literacy rate and urbanization along with lightning density and topography of the region play an important role on a number of lightning deaths. It is now widely believed that severe thunderstorms take their toll quietly but steadily almost every day during the pre-monsoon season every year, perhaps exceeding the total causalities and damages to properties on a decadal scale compared to cyclones. For example, the severe storm that struck parts of eastern India and Bangladesh on 13 April 2010 (with the most intense portion spanning 30–40 min and winds estimated from 120 to 160 km/h–1) killed more than 150 people, completely destroyed over 100,000 dwellings, partially damaged about 300,000 houses, and left nearly 500,000 people homeless. Widespread damage to crops and livestock including the destruction of more than 14,000 ha of maize occurred. Lightning is also one of the Weather-related Natural Disasters which normally is associated with Thunderstorms. During Lightning, due to the friction between the ice particles in the cloud, a sudden electrostatic discharge occurs between electrically charged regions of a cloud called intracloud lightning (IC), between Cloud to Cloud (CC lightning), or between a cloud and the ground (CG lightning). The charged regions in the atmosphere temporarily equalize themselves through this discharge referred to as a flash. A lightning flash can also be a strike if it involves an object on the ground. Lightning creates light in the form of black body radiation from the very hot plasma created by the electron flow, and sound in the form of thunder. |
| Category | Education |
| Tags | Education Download MP4 | Education Download MP3 | Education Download MP4 360p | Education Download MP4 480p | Education Download MP4 720p | Education Download MP4 1080p |
