The influence of meteorological conditions on upward lightning initiation at the Gaisberg Tower
2014 (English)In: 2014 International Conference on Lightning Protection, ICLP 2014, 2014, 1162-1165 p.Conference paper (Refereed)
Meteorological parameters associated with the initiation of upward lightning discharges from a tall tower were investigated. The parameters, including temperature, wind speed, air pressure, and relative humidity, were measured at the Gaisberg Tower top and at a distance of 170 m from the tower. A comparison of parameters associated with self-initiated upward flashes (initiated without any nearby preceding lightning activity) and nearby-lightning-triggered upward flashes (triggered by nearby preceding lightning activity) was made. It shows that at the Gaisberg Tower (GBT), relatively low ambient temperature facilitates to initiate upward flashes without any nearby preceding lightning activity. Relatively high ambient temperature (8.5 °C to 15.5 °C) facilitates to initiate upward positive stepped leaders, rather than the common continuous leaders, in the self-initiated upward negative flashes. No reliable correlation between wind speed and upward initiation of lightning was found.
Place, publisher, year, edition, pages
2014. 1162-1165 p.
meteorological parameters, temperature, upward lightning initiation, upward positive leader, Atmospheric pressure, Lightning protection, Wind, Lightning activity, Low ambient temperatures, Meteorological condition, Negative flashes, Stepped leader, Upward lightning, Upward positive leaders, Towers
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-167914DOI: 10.1109/ICLP.2014.6973303ISI: 000358572100221ScopusID: 2-s2.0-84919830242ISBN: 9781479935444OAI: oai:DiVA.org:kth-167914DiVA: diva2:818356
2014 International Conference on Lightning Protection, ICLP 2014, 11 October 2014 through 18 October 2014
QC 201506082015-06-082015-05-222015-09-11Bibliographically approved