High-speed camera observations of negative ground flashes on a millisecond-scale

被引：74

作者：

Ballarotti, MG ^{[1
]}

Saba, MMF ^{[1
]}

Pinto, O ^{[1
]}

机构：

[1] Natl Inst Space Res INPE, Sao Jose Dos Campos, Brazil

来源：

GEOPHYSICAL RESEARCH LETTERS | 2005年 / 32卷 / 23期

关键词：

D O I：

10.1029/2005GL023889

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A study of cloud-to-ground lightning characteristics based on high-speed camera observations of 455 flashes related to 40 thunderstorms is presented. The Brazilian Lightning Location Network (RINDAT) was used to calculate the polarity and the distance of the flashes to the camera. In some cases, a fast electric field flat antenna was also used to calculate the time difference between strokes on a microsecond-scale. Some general features of the data set are briefly presented. This paper is focused on two specific characteristics observed in video records with a frame a rate of 1,000 frames/s: (i) six strokes presenting two ground terminations that were simultaneously connected for some milliseconds, (ii) and a high number of continuing current occurrences with durations less than 10 ms.

引用

页码：1 / 4

页数：4

共 27 条

[1]

BALLAROTTI MG, 2004, 1 INT C LIGHTN PHYS

[2] QUANTITATIVE STUDY OF STROKES AND CONTINUING CURRENTS IN LIGHTNING DISCHARGES TO GROUND [J].

BROOK, M ;

WORKMAN, EJ ;

KITAGAWA, N .

JOURNAL OF GEOPHYSICAL RESEARCH, 1962, 67 (02) :649-+

[3] THE OPTICAL AND RADIATION-FIELD SIGNATURES PRODUCED BY LIGHTNING RETURN STROKES [J].

GUO, C ;

KRIDER, EP .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1982, 87 (NC11) :8913-8922

[4] CONTINUING CURRENTS IN CLOUD-TO-GROUND LIGHTNING DISCHARGES [J].

KITAGAWA, N ;

WORKMAN, EJ ;

BROOK, M .

JOURNAL OF GEOPHYSICAL RESEARCH, 1962, 67 (02) :637-+

[5] Progressive lightning III - The fine structure of return lightning strokes [J].

Malan, DJ ;

Collens, H .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1937, 162 (A909) :0175-0203

[6] Correlated high-speed video and radio interferometric observations of a cloud-to-ground lightning flash [J].

Mazur, V ;

Krehbiel, PR ;

Shao, XM .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1995, 100 (D12) :25731-25753

[7]

Parker NG, 2003, J APPL METEOROL, V42, P739, DOI 10.1175/1520-0450(2003)042<0739:APPSFM>2.0.CO

[8]

[9] The possible charge structure of thunderstonn and lightning discharges in northeastern verge of Qinghai-Tibetan Plateau [J].

Qie, X ;

Kong, X ;

Zhang, G ;

Zhang, T ;

Yuan, T ;

Zhou, Y ;

Zhang, Y ;

Wang, H ;

Sun, A .

ATMOSPHERIC RESEARCH, 2005, 76 (1-4) :231-246

[10]

Rakov V. A., 2007, Lightning Physics and Effects, DOI DOI 10.1017/CBO9781107340886

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