Lightning fun

Thunderstorm time lapse video

Formation of a cumulonimbus (Cb) cloud or thundercloud over North Dakota by Dean Gill.

Classic anvil and overshooting top by Daryl Herzmann.

First recording of a gigantic jet

Pasko et al., Nature, 414(3), 152-154, 2002. This video of a gigantic jet, taken near Arecibo observatory, PR, is the first recording of a gigantic jet (Pasko et al., 2002).

Video recording of blue jets and blue starters

Lyons et al., BAMS, 84, 445-454, 2003. This video shows multiple occurrences of blue starters in a supercell during the STEPS2000 campain (Lyons et al., 2003).

This is a video of blue jets recorded in Japan in August 2008. This video is captured by an amateur astronomer. It shows 7-8 blue jets emanating from the same thunderstorm cell.

High speed recording of sprite streamers

Stenbaek-Nielsen et al., GRL, 37, L06804, 2007. This high-speed video of sprite in color evidences the streamer nature of the filamentary structure of sprites: “the hair” (Stenbaek-Nielsen et al, 2007).

McHarg et al., GRL, 37, L06804, 2007. These high-speed videos of sprites focuses on the body of the streamers (McHarg et al., 2007).

High speed video of lightning

This material is taken from Pr. Walter Lyons and Tom J. Warner’s website, Hereafter you will find high-speed videos of:

• Negative cloud-to-ground lightning

High-speed camera recording of a negative cloud-to-ground lightning flash recorded at 7,207 images per second. A negative stepped leader connects with ground causing a short duration return stroke. This is followed by several fast dart leader/return stroke sequences one which has a long continuing current caused by sustained leader growth in the cloud. A vehicle is visible in the foreground right and is traveling at approximately 60 mph. My vehicle wiper comes into view towards the end of the flash. A royalty-free license for this video can be obtained at www.WeatherVideoHD.TV

A downward lightning negative ground flash captured at 7,207 images per second. A negative stepped leader emerges from the cloud and connects with the ground forming a return stroke.

• Positive cloud-to-ground lightning

A positive cloud-to-ground lightning flash recorded at 7,207 images per second. Weak positive leader branches decay and become cutoff as they propagate downward from the cloud. Fast recoil leaders develop along the decayed branches in an attempt to reionize the branches. The downward positive leader eventually connects with the ground forming a bright return stroke. A royalty-free license of this video can be obtained at www.WeatherVideoHD.TV

• Upward ground-to-cloud lightning

An upward lightning flash develops from a television tower in Rapid City, South Dakota. Filmed at 7,207 images per second.

An upward lightning flash initiated from a TV tower in Rapid City, SD. Filmed at 7,207 ips the positive polarity leader moves upward and branches into two primary channels. The right channel is weak and develops numerous recoil leaders which try to reionize the decayed branch. At one point the branch sustains growth following a recoil leader connection. The entire video is about 1/2 second.

Modeling of atmospheric electrical discharges

Part of our studies are devoted to the modeling of the above discharges. For this purpose, we develop models and theories to help the understanding of lightning, bolt-from-the-blue, blue jets, and gigantic jets. Hereafter, we report some simulation runs published by Krehbiel et al. (Nature Geoscience, 1(4), 233-237, 2008) (Krehbiel et al., 2008, supplementary information).

• Classic negative cloud-to-ground discharge

• Classic intracloud discharge

• Low intracloud discharge

• Negative bolt-from-the-blue

• Upward positive blue jet

• Upward negative gigantic jet

And the Grand Finale!

Last updated: Sunday, April 6, 2014