Videos of Lightning Flashes Imaged by FALMA

⚡This is a collection of videos of interesting lightning flashes imaged by FALMA during the summer of 2017 in Gifu, Japan. A brief description of FALMA can be found here.

⚡Seven more videos can be found in the supporting information of this GRL paper.

  1. 20170818 21:27:36 1503059256.1
    A -CG flash initiated from the upper positive charge region at an altitude of about 11 km.
    Downward Video 47

  2. 20170822 17:57:59 1503392279.3
    A hybrid flash first developed as a normal -CG flash. Later an upward negative leader developed from the positive leader channel.
    Downward Video 46

  3. 20170818 20:29:01 1503055741.0
    A hybrid flash first developed as a normal IC flash. Later a recoil leader created a new channel after passing the origin and progressed to the ground.
    Downward Video 45

  4. 20170822 17:35:24 1503390924.2
    A simple CG flash with two terminations.
    Downward Video 44

  5. 20170822 17:30:55 1503390655.3
    A simple CG flash and a simple IC flash occurred simultaneously.
    Downward Video 43

  6. 20170810 22:49:12 1502372952.6
    A simple bolt-from-the-blue type lightning flash.
    Downward Video 42

  7. 20170724 21:12:44 1500898364.0
    An IC flash with two long horizontal leaders.
    Downward Video 41

  8. 20170714 10:25:45 1499995545.9
    Two nearby IC flashes. One only contains a vertical channel. The other has the typical two-layer structure.
    Downward Video 40

  9. 20170714 10:00:06 1499994006.4
    Two flashes very close to each other. One is an IC flash initiating at a high altitude. The other is a CG flash.
    Downward Video 39

  10. 20170714 09:28:59 1499992139.2
    An IC flash with the typical two-layer structure.
    Downward Video 38

  11. 20170714 09:17:47 1499991467.0
    Two flashes very close to each other. One is an IC flash only containing a vertical channel. The other is a hybrid flash with complicated structures and long duration.
    Downward Video 37

  12. 20170714 09:04:46 1499990686.4
    A very simple CG flash with a leader first propagating horizontally and then downward to the ground.
    Downward Video 36

  13. 20170714 08:53:31 1499990011.3
    A CG flash with three terminations.
    Downward Video 35

  14. 20170714 08:40:28 1499989228.4
    A CG flash with two terminations. Multiple dart leaders were clearly imaged.
    Downward Video 34

  15. 20170822 18:06:13 1503392773.0
    A CG flash. The first stepped leader turned back upward and did not touch the ground. The second stepped leader started from a turning point of the first stepped leader.
    Downward Video 33

  16. 20170820 21:49:08 1503233348.6
    An IC flash. The negative first developed upward from the main negative charge region to the upper positive charge region like a normal IC flash. Then it turned downward and seemed to be intercepted by the lower positive charge region and did not reach the ground.
    Downward Video 32

  17. 20170818 22:05:04 1503061504.6
    A CG flash with two terminations.
    Downward Video 31

  18. 20170818 21:59:56 1503061196.3
    A CG flash with complicated in-cloud processes.
    Downward Video 30

  19. 20170818 21:54:43 1503060883.1
    A CG flash with complicated in-cloud processes.
    Downward Video 29

  20. 20170818 21:32:48 1503059568.0
    A CG flash. A long negative leader developed during the latter half of this flash.
    Downward Video 28

  21. 20170818 21:08:55 1503058135.8
    A CG flash with three terminations, an upward negative leader and numerous in-cloud branches.
    Downward Video 27

  22. 20170818 21:04:35 1503057875.2
    An IC flash with the typical two-layer structure.
    Downward Video 26

  23. 20170818 21:03:52 1503057832.2
    A CG flash. The initial leader was very slow and seemed to be "dead" and was not involved in the following development of this flash.
    Downward Video 25

  24. 20170818 21:02:31 1503057751.5
    A CG flash with numerous in-cloud branches.
    Downward Video 24

  25. 20170818 21:00:51 1503057651.1
    A CG flash. A dart leader first brightened a branch and then traversed the main channel.
    Downward Video 23

  26. 20170818 20:46:40 1503056800.6
    A bolt-from-the-blue type hybrid flash.
    Downward Video 22

  27. 20170818 06:26:56 1503005216.5
    An IC flash first formed the typical two-layer structure and then another vertical channel developed from the main negative charge region, forming a peculiar structure.
    Downward Video 21

  28. 20170818 05:59:08 1503003548.3
    A hybrid flash.
    Downward Video 20

  29. 20170818 05:08:38 1503000518.1
    A hybrid flash.
    Downward Video 19

  30. 20170818 04:40:27 1502998827.1
    A bolt-from-the-blue type hybrid flash with a very simple structure.
    Downward Video 18

  31. 20170818 02:01:06 1502989266.3
    A hybrid flash.
    Downward Video 17

  32. 20170818 01:27:32 1502987252.2
    An IC flash with the typical two-layer structure, but the low layer contained many more branches.
    Downward Video 16

  33. 20170818 01:20:45 1502986845.8
    A hybrid flash.
    Downward Video 15

  34. 20170818 01:19:31 1502986771.2
    An IC flash with the typical two-layer structure.
    Downward Video 14

  35. 20170818 01:07:25 1502986045.3
    An IC flash. New negative leader developed from the middle of the initial vertical channel.
    Downward Video 13

  36. 20170818 01:01:40 1502985700.5
    An IC flash with the typical two-layer structure.
    Downward Video 12

  37. 20170818 00:57:21 1502985441.0
    A CG flash with three terminations. The influence of the lower positive charge region can be seen.
    Downward Video 11

  38. 20170818 00:56:04 1502985364.0
    A hybrid flash. A negative downward leader first propagated downward but turned horizontal into the lower positive charge region. Later a new negative leader developed from the turning point of the old leader and reached the ground.
    Downward Video 10

  39. 20170818 00:53:24 1502985204.8
    A CG flash with two terminations.
    Downward Video 9

  40. 20170818 00:47:34 1502984854.7
    A hybrid flash with complicated structures.
    Downward Video 8

  41. 20170818 00:28:11 1502983691.7
    A hybrid flash containing several negative leaders propagating in different directions.
    Downward Video 7

  42. 20170818 00:13:15 1502982795.6
    An IC flash starting with two concurrent upward negative leaders.
    Downward Video 6

  43. 20170817 23:37:48 1502980668.1
    A hybrid flash first developed as a normal IC flash. Later a negative leader developed from an old channel and reached the ground.
    Downward Video 5

  44. 20170817 23:17:56 1502979476.9
    A simple IC flash. The negative leader had horizontal propagations first in an upper layer and later in a lower layer.
    Downward Video 4

  45. 20170817 23:02:32 1502978552.0
    A simple bolt-from-the-blue type hybrid flash.
    Downward Video 3

  46. 20170714 09:45:42 1499993142.5
    A CG flash. A long quiet time after the first return stroke.
    Downward Video 2

  47. 20170714 08:39:41 1499989181.1
    A simple IC flash with the typical two-layer structure.
    Downward Video 1