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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Relationship between weather types and lightning discharges in Central Europe
 Pacovská, Lucie ; Popová, Jana (advisor) ; Müller, Miloslav (referee)
This thesis aims at describing a lightning discharge and the lightning activity detection with an emphasis put on the World Wide Lightning Location Network (WWLLN). It also investigates possible relationships between the lightning discharge data from the WWLLN and the weather types given by the Weather type catalogue, which is published by the Czech Hydrometeorological Institute (CHMI), in Central Europe. In the state of the art, cloud electricity and lightning discharges as well as their detection and network detection are presented followed by a detailed description of the WWLLN, examples of outputs which are provided by WWLLN to the public, and some of the studies processing the data of WWLLN at global and European level mostly dealing with the network efficiency. This thesis uses the WWLLN data during 2017 - 2019 and the weather types provided by the CHMI. It displays the temporal and spatial distribution of the WWLLN data and mainly the results of testing the hypothesis whether there is a relationship between lightning discharges and weather types (or not) by using the two-tailed binomial test. The results show that for the weather types B (low pressure trough), NWa (northwestern anticyclonal situation) and Wal (western anticyclonal summer situation) the probability that at least one...
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