LINET – A New Lightning Detection Network in Europe
During the past years a VLF/LF lightning detection network (LINET) was developed at the University of Munich which provides useful data for both research and operational purposes. In particular, five new features are displayed: a) total lightning capability: cloud-to-ground strokes (CG) and cloud lightning (IC) are measured; b) low-amplitude reporting: weak events from channel currents below 5 kA are detected with high efficiency in a current range where IC events dominate; c) new 3D-discrimination: a time-of-arrival method is utilized to separate CG from IC with excellent reliabil-ity, provided that the sensor baseline does not exceed ~250 km; d) IC emission height: for each cloud event a height is determined which is thought to reflect the central region of the involved channel; and e) optimised location accuracy: due to the precision of the combined action of all influential network components the position error of strokes reaches an average value as small as ~150 m, whereby false locations (‘outliers’) rarely occur. During international co-operations LINET has been deployed in four continents: Europe (Germany), South America (area of Bauru, Brazil), Australia (around Darwin), and Central Africa (Benin). Since the features quoted above could be verified, a 60-sensor network was established in Europe and put into service on May 1, 2006, in co-operation with NowCast mobile. LINET data covers a wide area approximately from longitude –5° to 25° and latitude 40° to 56°; it is available for scientific projects and is officially utilized by the German Weather Services for opera-tional purposes. Further addition of sensors and spatial expansions are under way for 2007.
Hans D. Betz Kersten Schmidt Pierre Laroche Patrice Blanchet Wolf P. Oettinger Eric Defer
University of Munich, Department of Physics, 85748 Garching, Germany ONERA, 92322 Chatillon, France NowCast mobile Inc., 82266 Stegen, Germany LERMA-Observatoire de Paris, 75014 Paris, France
国际会议
第13届国际大气电学会议(The 13th International Conference on Atmospheric Electricity)
北京
英文
2007-08-13（万方平台首次上网日期，不代表论文的发表时间）