Title :
Cloud-to-ground ligthning activity in Colombia and the influence of topography
Author :
Aranguren, Daniel ; Lopez, J. ; Inampues, Juan ; Torres, H. ; Betz, Hans D.
Author_Institution :
Keraunos S.A.S., Bogota, Colombia
Abstract :
Lightning activity on the Colombian mountains, where the altitude varies from 0 to more than 5,000 MSL, is studied based on VLF/LF lightning detection data and using a 2012-2013 dataset. The influence of altitude is evaluated by analyzing peak current distributions for cloud-to-ground strokes at different altitude intervals and studying the relationship between ground flash density and altitude gradient vectors. Results show a clear dependence of the flash density on elevation.
Keywords :
gradient methods; lightning; altitude gradient vectors; cloud-to-ground ligthning activity; cloud-to-ground strokes; ground flash density; lightning detection data; peak current distributions; Nickel; Ground flash density; VLF/LF lightning detection system; contrasting topography; tropical region;
Conference_Titel :
Lightning Protection (ICLP), 2014 International Conference o
Conference_Location :
Shanghai
DOI :
10.1109/ICLP.2014.6973430
