Effects of the topography on the thundercloud electrostatic field measurements

This paper presents thunderstorm electrostatic field measurements carried out by electric field mills located at mountainous regions in Spain and Colombia. The profile of electric field changes ¿E due to lightning vs distance is computed by using data from a lightning location system. The effect of the topography on the ¿E vs distance profile is studied in order to identify necessary adjustments for field mills used as lightning warning systems affects by topographycal factors.