On the Proportion of Upward Flashes to Lightning Research Towers
We compare in this paper direct measurements obtained at the Towers on Mount San Salvatore (Switzerland) and the Gaisberg Tower (Austria).They are situated in similar topographical environments but in different lightning activity zones.Direct measurements of lightning currents on these towers have revealed a major difference in terms of the number of downward flashes.While Berger and co-workers obtained a significant number of downward flashes, more recent observations on the Gaisberg and Peissenberg Towers were essentially composed of upward flashes.We use in this paper a new method to estimate the proportion of upward/downward flashes to a given tower, based on the data from lightning location systems.The analysis using the proposed method explains the discrepancy in terms of the measured number of downward flashes in Gaisberg Tower and in Monte San Salvatore Tower.
Lightning lightning research towers lightning location systems upward lightning downward lightning attractive radius effective height complex terrain
Alexander Smorgonskiy Farhad Rachidi Marcos Rubinstein Gerhard Diendorfer Wolfgang Schulz
EMC LaboratoryEcole polytechnique fédérale de LausanneLausanne,Switzerland Institut ICTUniversity of Applied Sciences of Western SwitzerlandYverdon,Switzerland Dept.ALDISAustrian Electrotechnical Association OVEVienna,Austria Dept.ALDIS Austrian Electrotechnical Association OVE Vienna,Austria
国际会议
成都
英文
1-5
2011-11-01（万方平台首次上网日期，不代表论文的发表时间）