Eruption storm
Eruption of the Rinjani volcano in 1994 with an eruption storm
As dirty thunderstorm ( English Volcanic Lightning ) are referred to atmospheric discharges, the causes of the outbreak of a volcano are due. The friction of tephra particles (fine dust particles ) in an eruption column during volcanic eruptions creates a static charge. This charge is reduced by lightning .
Such thunderstorms can trigger very heavy rains . These arise from the water vapor in the eruption column and water vapor in the atmosphere . This condenses on the tephra particles and grows into larger drops. After a while, they become so heavy, like in thunderclouds , that they fall to the ground. These rains then lead to dangerous mud currents, the lahars .
See also
literature
- Stephen R. McNutt, Ronald J. Thomas: The Encyclopedia of Volcanoes . 2015, ISBN 978-0-12-385938-9 , Volcanic Lightning, pp. 1059-1067 , doi : 10.1016 / b978-0-12-385938-9.00062-6 .
Web links
Commons : Eruption Thunderstorm - Collection of images, videos and audio files
Individual evidence
- ↑ Dangers from volcanic eruptions. 6.8 Eruptive thunderstorms. (No longer available online.) Volcanism, archived from the original on March 5, 2016 ; Retrieved July 25, 2011 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
