Lightning occurrence data observed with lightning location systems in Japan: 1992-1995

Shindo, Takatoshi; Yokoyama, Shigeru

doi:10.1109/61.714797

Cited by 37 publications

(26 citation statements)

References 12 publications

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“…The Central Research Institute of Electric Power Industry (CRIEPI) has been organizing the Lightning Protection Design Committee for the rational insulation design of Cloud-to-ground lightning occurrence data for the years 1992-1995 have been analyzed using the data obtained with nine different lightning location systems in Japan (2) . In 1999, CRIEPI and nine power utilities have established a data integrating system for the lightning location systems operated individually in order to investigate the nationwide characteristics of lightning in Japan (4) .…”

Section: Network and Data Collectionmentioning

confidence: 99%

“…In Japan, the IKL map was made based on ten-year data of thunderstorm days from 1954 to 1963 observed by the Meteorological Agency. However, it has been clarified that thunderstorm days are not appropriate as an index of the lightning occurrence because the actual lightning flash densities vary greatly even if thunderstorm days are same (1) (2) . (The total discharge whose time duration is of the order of 0.2 sec is called a flash and each component discharge whose luminous phase is measured in tenths of milliseconds is called a stroke.…”

Section: Introductionmentioning

confidence: 99%

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Lightning Occurrence Data Observed with Lightning Location Systems of Electric Utilities in Japan: 1992-2001

Design¹,

Group

2004

IEEJ Trans. PE

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Cloud-to-ground lightning frequency is one of the most important factors to establish the rational insulation design of power transmission systems. Ten-year lightning occurrence data 1992 through 2001 with lightning location systems of electric utilities in Japan have been collected and analyzed. As a result, it is found that the annual number of the lightning strokes varies at the level of about 0.6 million on an average, but it is small in 1993 and extremely large in 2000 and 2001. This is considered due to the abnormal meteorological conditions in summer. Seasonal variations and annual variations of lightning occurrence have been clarified from the seasonal and annual lightning stroke frequency maps made by the above data. It is shown that the variations are different from those of thunderstorm days. Furthermore, comparison between the thunderstorm days observed by the lightning location systems and thunderstorm day data collected by the Japan Meteorological Agency is made.

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Section: Network and Data Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lightning Occurrence Data Observed with Lightning Location Systems of Electric Utilities in Japan: 1992-2001

Design¹,

Group

2004

IEEJ Trans. PE

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“…In the past decade, lightning location systems have been installed worldwide to monitor lightning activities. Up to date, the lightning location systems are being operated in many countries, including the U.S. [3], [4], U.K. [5], Japan [1], Canada [6], Austria [7], Sweden [8] and Israel [9], etc. These systems collect information of flash location, peak values of discharge current, and number of lightning strokes per flash, etc.…”

Section: Introductionmentioning

confidence: 99%

“…As it is difficult to measure the ground flash density directly, estimated values from the data of a map of thunderstorm days in a year, so called Iso-Keraunic Level (IKL) map, are used. Several empirical formulas have been proposed to determine ground flash density from annual thunderstorm days [1].…”

Section: Introductionmentioning

confidence: 99%

Lightning Data Observed With Lightning Location System in Guang-Dong Province, China

Chen

Fan³

2004

IEEE Trans. Power Delivery

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This paper presents an investigation into cloud-to-ground lightning activity data collected by a lightning detection system in the Guang-Dong Province, the southernmost in China. Annual lightning days are acquired and ground flash density maps are constructed from the database, which contains the information of more than one million flashes. The lightning days are compared with annual thunderstorm days collected by the Guang-Dong Meteorological Agency, and a weak correlation is noted. The correlation between ground flash density and thunderstorm day is studied, and an empirical formula is presented. The relationship between transmission line faults and ground flash density is discussed in this paper too. It is noted that the correlation with the faults caused by lightning is relatively high. The correlation coefficient does not significantly vary with the threshold of discharge current set for constructing the map of revised ground flash density.

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“…[2] Cloud-to-ground (CG) lightning characteristics have been extensively studied in many regions all over the world (e.g., Orville et al [2002] for the United States and Canada; Holt et al [2001], Schulz et al [2005], and Rivas Soriano et al [2005] for European regions; Pinto et al [2003a] for Brazil; Shindo and Yokoyama [1998] for Japan) using ground-based detection networks. Studies of total (intracloud and CG) lightning flash density have also been conducted using satellite-based instruments such as the Optical Transient Detector (OTD) and Lightning Imaging Sensor (LIS) [e.g., Williams et al, 2000;Boccippio et al, 2000a;Christian et al, 2003].…”

Section: Introductionmentioning

confidence: 99%

Total flash density and the intracloud/cloud‐to‐ground lightning ratio over the Iberian Peninsula

Soriano

Pablo

2007

J. Geophys. Res.

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[1] Analysis of the total, intracloud and cloud-to-ground lightning flash density and the intracloud (IC) to cloud-to-ground (CG) ratio (Z = IC/CG) over the Iberian Peninsula (IP) has been performed using 5 years of combined data from the Spanish lightning detection network and the NASA Optical Transient Detector (OTD). The spatial distributions of total flash density and CG flash density show significant differences, especially on the northwest of the IP, the southern island of the Balearic Islands, and the southern/southeastern Mediterranean coastline. The spatial average of the annual value of Z is 3.48. A correlation was found between Z and latitude (correlation coefficient: À0.9). A relationship between Z and the total flash density was also observed (Z $ f 0.5 ; correlation coefficient: 0.48). The spatial pattern of Z is reminiscent of that of the percentage of positive CG-flashes, and high Z values seem to occur where the percentage of positive flashes is high.Citation: Soriano, L. R., and F. de Pablo (2007), Total flash density and the intracloud/cloud-to-ground lightning ratio over the Iberian Peninsula,

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Lightning occurrence data observed with lightning location systems in Japan: 1992-1995

Cited by 37 publications

References 12 publications

Lightning Occurrence Data Observed with Lightning Location Systems of Electric Utilities in Japan: 1992-2001

Lightning Occurrence Data Observed with Lightning Location Systems of Electric Utilities in Japan: 1992-2001

Lightning Data Observed With Lightning Location System in Guang-Dong Province, China

Total flash density and the intracloud/cloud‐to‐ground lightning ratio over the Iberian Peninsula

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