Analysis of the altitude of the isotherns and the electrical charge for flashes that struck the Gaisberg Tower
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Document typeConference lecture
Defense date2007
Rights accessRestricted access - author's decision
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Abstract
The features of lightning flashes occurring on tall structures can give some valuable
information about their initiation, especially the cases of upward flashes for lightning protection of tall
structures such as wind-turbines. More than 300 flashes which struck the Gaisberg tower (Austria) have
been analyzed in order to investigate differences in occurrence conditions between winter and summer.
More flashes struck the tower in winter unlike the Austrian lightning activity is much lower during this
season. These winter flashes deposit to ground more electrical charge than summer ones. The median values
of the -10 ºC isotherm altitudes during winter are 2-km lower than during summer. This difference would
produce stronger electric fields at ground level which could favor the triggering of upward flashes.
Location
CitationMontañá Puig, J. [et al.]. Analysis of the altitude of the isotherns and the electrical charge for flashes that struck the Gaisberg Tower. A: International Conference on Atmospheric Electricity. "13th International Conference on Atmospheric Electricity". 2007,
Publisher versionhttp://www.casnw.net/icae2007/
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