Asea Brown Boveri Ltd. (ABB) Award 2011 - Mosaddeghi Seyed Abbas
© 2011 EPFL
ELECTROMAGNETIC ENVIRONMENT ASSOCIATED WITH LIGHTNING STRIKES TO TALL STRIKE OBJECTS. Thesis EPFL, no 4903 (2011). Dir.: Farhad Rachidi.
"For outstanding contributions to the characterization of lightning electromagnetic fields and their interaction with tall structures."
ELECTROMAGNETIC ENVIRONMENT ASSOCIATED WITH LIGHTNING STRIKES TO TALL STRIKE OBJECTS.
The study of the lightning interaction with tall strike objects has attracted considerable attention of lightning researchers lately.
In this thesis, a thorough theoretical description of the electromagnetic radiation associated with lightning strikes to a tower was presented. The analysis resulted in the elaboration of an improved model for the evaluation of electromagnetic fields generated by lightning strikes to tall structures.
We also obtained unique measurements of electric (vertical and radial) and magnetic fields from leaders and return strokes associated with lightning strikes to the Gaisberg tower in Austria in 2007 and 2008. The data include simultaneous records of vertical and radial electric fields, which were obtained for the first time at such close distances. The obtained data allowed for a complete characterization of electromagnetic fields in the immediate vicinity of a tall structure struck by lightning and were used for the validation of theoretical models.