Title :
Measurement of the Speed of Upward Lightning Discharges
Author_Institution :
Sch. of Electr. Eng. & Informatics, Bandung Inst. of Technol.
Abstract :
This paper presents the results from the upward lightning discharge observations. The observations were carried out using the broadband interferometry system. A total of 24 upward lightning whose leaders were negatively charged were recorded during one-month observations in wintertime on the coastal area of Japan Sea. Speeds of main leader progression varied from 0.6times105 m/s to 6.7times105 m/s. These values are in good agreement with previous optical measurements. Speeds of branch leader progression varied from 0.7times105 m/s to 5.6times105 m/s. In general the speed of branch leaders was slightly slower than that of the main leader
Keywords :
atmospheric techniques; lightning; radiowave interferometry; 0.6times105 to 6.7times105 m/s; Japan Sea; broadband radio interferometry system; coastal area; lightning leader progression; speed measurement; upward lightning discharges; Atmospheric measurements; Cameras; Clouds; Electromagnetic measurements; Lightning; Optical interferometry; Optical propagation; Photodiodes; Sea measurements; Velocity measurement;
Conference_Titel :
Properties and applications of Dielectric Materials, 2006. 8th International Conference on
Conference_Location :
Bali
Print_ISBN :
1-4244-0189-5
Electronic_ISBN :
1-4244-0190-9
DOI :
10.1109/ICPADM.2006.284158
