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The M change characteristics in continuing current process of negative cloud-to-ground lightning discharge and artificially triggering lightning discharge are comparatively analyzed using the synchronous data of optical channel high-speed video camera pictures, electric field changes on ground and the peak very high frequency radiation. The results indicate that M process could be identified accurately from synchronous data of optical channel luminance and electric field changes on ground. There are lots of rapid changes of electric field (MP) prior to and during classic M change. And the M changes caused by lots of MP changes. There is mostly no difference in waveform characteristics between M changes and K changes and their generated physical mechanisms are similar. MP change is a rapid change of electric field corresponding to the rapid flow of charge caused by the breakdown process in the stage of continuous current process and accompanied with channel sudden brightening and high intensity radiation. Most of the M changes are unipolar, positive or negative and a few are irregular and last within 0.1 ms. Only M change in close lightning discharge exhibits a classic U-shaped structure because of its waveform mostly caused by static electric field, and its duration is about from 0.2 to 0.8 ms. MP and K changes are all caused by the breakdown. The difference between MP and K changes is that the electric charges flow into the original return stroke channel in the process of MP change, but not in the process of K change.
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Keywords:
- Qinghai-Tibet Plateau /
- M changes /
- MP changes /
- K changes
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[2] Wang C X, Qie X S, Jiang R B, Yang J 2012 Acta Phys. Sin. 61 039203 (in Chinese) [王彩霞, 郄秀书, 蒋如斌, 杨静 2012 物理学报 61 039203]
[3] Hou Y L, Zhang G S, L S H, Yuan P 2013 Acta Phys. Sin. 62 059201 (in Chinese) [火元莲, 张广庶, 吕世华, 袁萍 2013 物理学报 62 059201]
[4] Wang J F, Qie X S, Lu H, Zhang J L, Yu X X, Shi F 2012 Acta Phys. Sin. 61 159202 (in Chinese) [王俊芳, 郄秀书, 卢红, 张吉龙, 于晓霞, 石峰 2012 物理学报 61 159202]
[5] Yang B, Zhou B H, Meng X 2012 Acta Phys. Sin. 59 8978 (in Chinese) [杨波, 周璧华, 孟鑫 2012 物理学报 59 8978]
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[17] Zhang G S, Zhang T, Qie X S, Chen C P 2003 Plateau Meteorol. 22 301 (in Chinese) [张广庶, 张彤, 郄秀书, 陈成品 2003 高原气象 22 301]
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[20] Zhang G S, Wang Y H, Qie X S, Zhang T, Zhao Y X, Li Y J, Cao D J 2010 Sci. China D 40 523 (in Chinese) [张广庶, 王彦辉, 郄秀书, 张彤, 赵玉祥, 李亚珺, 曹冬杰 2010 中国科学(D辑) 40 523]
[21] Wu B, Zhang G S, Wang Y H, Li Y J, Zhang T, Fan X P, L W T 2013 Plateau Meteorol. 32 519 (in Chinese) [武斌, 张广庶, 王彦辉, 李亚珺, 张彤, 范祥鹏, 吕伟涛 2013 高原气象 32 519]
[22] Wang D H, Qie X S, Guo C M 2000 Lightning and Artificially Triggered Lightning p134 (Shanghai: Shanghai Jiaoda Press) (in Chinese) [王道洪, 郄秀书, 郭昌明 2000 雷电与人工引雷 (上海: 上海交通大学出版社) 第134页]
[23] Rakov V A, Thottappillil R, Uman M A 1995 J. Geophys. Res. 100 25701
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[1] Zhao Y, Qie X S, Kong X Z, Zhang G S, Zhang T, Yang J, Feng G L, Zhang Q L, Wang D F 2009 Acta Phys. Sin. 58 6616 (in Chinese) [赵阳, 郄秀书, 孔祥贞, 张广庶, 张彤, 杨静, 冯桂力, 张其林, 王东方 2009 物理学报 58 6616]
[2] Wang C X, Qie X S, Jiang R B, Yang J 2012 Acta Phys. Sin. 61 039203 (in Chinese) [王彩霞, 郄秀书, 蒋如斌, 杨静 2012 物理学报 61 039203]
[3] Hou Y L, Zhang G S, L S H, Yuan P 2013 Acta Phys. Sin. 62 059201 (in Chinese) [火元莲, 张广庶, 吕世华, 袁萍 2013 物理学报 62 059201]
[4] Wang J F, Qie X S, Lu H, Zhang J L, Yu X X, Shi F 2012 Acta Phys. Sin. 61 159202 (in Chinese) [王俊芳, 郄秀书, 卢红, 张吉龙, 于晓霞, 石峰 2012 物理学报 61 159202]
[5] Yang B, Zhou B H, Meng X 2012 Acta Phys. Sin. 59 8978 (in Chinese) [杨波, 周璧华, 孟鑫 2012 物理学报 59 8978]
[6] Xu B, He H, Yang X Y, Bie Y G, L Q H 2012 Acta Phys. Sin. 61 175203 (in Chinese) [徐斌, 贺华, 杨晓艳, 别业广, 吕清花 2012 物理学报 61 175203]
[7] Malan D J, Schonland B F J 1947 Proc. R. Soc. London Ser. A 191 485
[8] Rakov V A, Uman M A, Thottappillil R 1994 J. Geophys. Res. 99 10745
[9] Thottappillil R, Goldberg J D, Rakov V A 1995 J. Geophys. Res. 100 25711
[10] Kitagawa N, Brook M, Workman E J 1962 J. Geophys. Res. 67 6378
[11] Fisher R J, Schnetzer G H, Thottappillil R, Rakov V A, Uman 1993 J. Geophys. Res. 98 22887
[12] Jiang R B, Qie X S, Wang C X, Yang J, Zhang Q L, Wang J F, Liu D X 2011 Acta Phys. Sin. 60 079201 (in Chinese) [蒋如斌, 郄秀书, 王彩霞, 杨静, 张其林, 王俊芳, 刘冬霞 2011 物理学报 60 079201]
[13] Thottappillil R, Rakov V A, Uman M A 1990 J. Geophys. Res. 95 18631
[14] Rakov V A, Thottappillil R, Uman M A 1992 J. Geophys. Res. 97 9935
[15] Shao X M, Krehbiel D N, Thomas R J, Rison W 1995 J. Geophys. Res. 100 2749
[16] Cao D J, Qie X S, Duan S, Xuan Y J, Wang D F 2012 Acta Phys. Sin. 61 069202 (in Chinese) [曹东杰, 郄秀书, 段树, 宣越建, 王东方 2012 物理学报 61 069202]
[17] Zhang G S, Zhang T, Qie X S, Chen C P 2003 Plateau Meteorol. 22 301 (in Chinese) [张广庶, 张彤, 郄秀书, 陈成品 2003 高原气象 22 301]
[18] Zhang T, Zhang G S, Qie X S 2003 Plateau Meteorol. 22 306 (in Chinese) [张彤, 张广庶, 郄秀书 2003 高原气象 22 306]
[19] Zhang G S, Zhao Y X, Qie X S, Zhang T, Wang Y H 2008 Sci. China D 38 1 (in Chinese) [张广庶, 赵玉祥, 郄秀书, 张彤, 王彦辉 2008 中国科学(D辑) 38 1]
[20] Zhang G S, Wang Y H, Qie X S, Zhang T, Zhao Y X, Li Y J, Cao D J 2010 Sci. China D 40 523 (in Chinese) [张广庶, 王彦辉, 郄秀书, 张彤, 赵玉祥, 李亚珺, 曹冬杰 2010 中国科学(D辑) 40 523]
[21] Wu B, Zhang G S, Wang Y H, Li Y J, Zhang T, Fan X P, L W T 2013 Plateau Meteorol. 32 519 (in Chinese) [武斌, 张广庶, 王彦辉, 李亚珺, 张彤, 范祥鹏, 吕伟涛 2013 高原气象 32 519]
[22] Wang D H, Qie X S, Guo C M 2000 Lightning and Artificially Triggered Lightning p134 (Shanghai: Shanghai Jiaoda Press) (in Chinese) [王道洪, 郄秀书, 郭昌明 2000 雷电与人工引雷 (上海: 上海交通大学出版社) 第134页]
[23] Rakov V A, Thottappillil R, Uman M A 1995 J. Geophys. Res. 100 25701
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