Title :
Lightning occurrence data observed with lightning location systems in Japan: 1992-1995
Author :
Shindo, Takatoshi ; Yokoyama, Shigeru
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Tokyo, Japan
fDate :
10/1/1998 12:00:00 AM
Abstract :
Cloud-to-ground lightning occurrence for years 1992-1995 has been analyzed using the data obtained with nine different lightning location systems in Japan. A total of more than 2 million lightning strokes are observed for the four years and the number of annual lightning strokes is closely related to the weather conditions in summer. Lightning occurs all over Japan in summer but occurrence of lightning is concentrated in the coastal area of the Sea of Japan in winter. Data of thunderdays are compared with the data observed by the Japan Meteorological Agency. The relationship between number of lightning strokes and thunderdays is also obtained. It changes season by season and it is very difficult to express the relations with a single formula
Keywords :
atmospheric techniques; lightning; power system protection; thunderstorms; AD 1992 to 1995; Japan; Japan Meteorological Agency; Sea of Japan; annual lightning strokes; cloud-to-ground lightning occurrence; coastal area; insulation design; lightning location systems; lightning occurrence data; lightning protection; lightning strokes; power transmission system; summer weather conditions; thunderdays data; winter; Data analysis; Density measurement; Frequency; Insulation; Lightning protection; Meteorology; Power measurement; Power transmission; Power transmission lines; Sea measurements;
Journal_Title :
Power Delivery, IEEE Transactions on
