Evaluation of 45 negative flashes based on E-field measurements, video data and lightning location data in Austria

In this paper we present an analysis of 45 negative flashes based on video and field measurement data. The analysis based on video and E-field measurement data is an ideal method to check lightning location data in terms of cloud-to-cloud or cloud-to-ground classification. We will show that the flash and stroke detection efficiency determined by this analysis is quite similar to the result from measurements at the Gaisberg Tower. We further present some lightning parameters for negative flashes and compare them to values available in the literature.