Date: 20/03/2019 14:20:42
From: Tau.Neutrino
ID: 1362961
Subject: Thunderstorm with eye-popping 720GJ of energy

Thunderstorm with eye-popping 720GJ of energy

Nothing says “I love diving headfirst into a ditch” like your hair suddenly elevating to the tingly feel of electricity. Thunderstorms are amazing from inside a building, but they’re scary if you’re trapped outside. And, despite a good deal of observation, an element of mystery surrounds them. For instance, we know that lightning can produce free neutrons, antimatter, and gamma rays, but we don’t have much idea of how that happens.

more…

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Date: 20/03/2019 16:03:39
From: mollwollfumble
ID: 1363122
Subject: re: Thunderstorm with eye-popping 720GJ of energy

Tau.Neutrino said:


Thunderstorm with eye-popping 720GJ of energy

Nothing says “I love diving headfirst into a ditch” like your hair suddenly elevating to the tingly feel of electricity. Thunderstorms are amazing from inside a building, but they’re scary if you’re trapped outside. And, despite a good deal of observation, an element of mystery surrounds them. For instance, we know that lightning can produce free neutrons, antimatter, and gamma rays, but we don’t have much idea of how that happens.

more…

Indian muon telescope ! http://grapes-3.tifr.res.in

GRAPES-3 doesn’t actually care where the muons come from; it just happily counts away. Evidently, the scientists running the detector noticed that their data would always go a bit skewiff every time a thunderstorm passed over. Instead of ignoring this, the researchers (while keeping their heads low), installed a set of electric field monitors at various distances from the observatory and started logging electric field strength every time a storm passed over. That data could be easily compared to the muon detection rate.

The electric potential meters indicated that one storm had a relatively simple distribution of electric charge. That allowed the researchers to model the storm as two sheets of charge separated by a few kilometers. The high-energy muon flux associated with the storm was due to low-energy muons being accelerated by the static potential of the storm. To test that, they ran models of atmospheric muon generation and acceleration.

The researchers showed that they could replicate their muon measurements if the peak potential of the storm was about 1.3GV (yes, that’s 1.3 billion volts). These potentials are also sufficient to explain previously unexplained gamma-ray flashes from thunderstorms. By contrast, weather-balloon measurements have never measured a static potential higher than 130MV, or 10 times weaker than that. …

Nice work !

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Date: 20/03/2019 16:46:30
From: Tau.Neutrino
ID: 1363142
Subject: re: Thunderstorm with eye-popping 720GJ of energy

I’m working on a mind map for lightning, here is what I have so far

https://en.wikipedia.org/wiki/Lightning

Lightning is a electrostatic discharge where two electrically charged regions in the atmosphere temporarily equalize themselves
Lightning creates a wide range of electromagnetic radiations from the very hot plasma created by the electron flow, including visible light in the form of black-body radiation
Thunder is the sound formed by the shock wave formed as gaseous molecules experience a rapid pressure increase.

A 100 lightning bolts strike Earth’s surface every single second
1,400,000,000 strikes every year.

types of lightning are cloud to ground, inter cloud, cloud to cloud

Types of cloud-to-ground lightning include staccato, forked, ribbon, and bead lightening. –Staccato lightning is a strike which is a short-duration stroke that often, but not always, appears as a single very bright flash and often has considerable branching

Lightning produces:

an Electric field

an Electric current

Up to one billion volts of electricity.

Antimatter

x-rays

Gamma rays

Free neutrons

Muons

Heats the air to 30,000 °C 5x hotter the the sun

A potential of around 1.3GV (1.3 billion volts).

Holds a charge of 1100C (Coulomb is the unit of electric charge: a single electron is 1.6×10-19C) and held an energy of more than 720GJ. delivers more than 2GW of power,
ref
https://arstechnica.com/science/2019/03/thunderstorm-with-eye-popping-720gj-of-energy/

The average length of a lightning bolt is about 2-3 miles.

The actual width of a lightning bolt is only about 2-3 cm

An actual lightning strike travels at a comparatively gentile 270,000 mph.while the light it produces travels at (670,000,000 mph)

Lightning strikes usually last around 1 or 2 microseconds.

Lightning can produce red or blue sprites that stretch above the storm

Lightning is usually produced by cumulonimbus clouds that are very tall and dense.

Lightning can also occur during in: volcanic eruptions, dust storms, snow storms, forest fires, tornadoes, helicopters, airplane contrails, rocket exhaust plumes, thermonuclear explosions, rocket and laser triggered.

The study of lightning is known as fulminology.

Astraphobia is the fear of thunder and lightning.

Over 2000 people die each year from lightning hits.

Lake Maracaibo in Venezuela is a place on Earth that receives the most lightning strikes. Thunderstorms occur 140-160 nights per year with an average of 28 lightning strikes per minute lasting up to 10 hours at a time producing as many as 40,000 lightning strikes a night!

Most lightning occurs over land rather than oceans, with around 70% of it occurring in the Tropics.

Air quality

The very high temperatures generated by lightning lead to significant local increases in ozone and oxides of nitrogen. Each lightning flash in temperate and sub-tropical areas produces 7 kg of NOx on average. In the troposphere the effect of lightning can increase NOx by 90% and ozone by 30%.

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Date: 21/03/2019 12:22:37
From: Tau.Neutrino
ID: 1363522
Subject: re: Thunderstorm with eye-popping 720GJ of energy

I wonder what the total amount of energy is across all electrical storms from the beginning of the Earth to the present today?

Say 1,400,000,000 strikes every year times age of Earth 4.5 billion years

1,400,000,000 * 4,543,000,000 = 6.3602e+18

Any estimate as to the total energy produced by lightning, including all natural types over the entire history of the Earth?

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Date: 21/03/2019 13:09:47
From: Tau.Neutrino
ID: 1363569
Subject: re: Thunderstorm with eye-popping 720GJ of energy

https://geology.com/articles/lightning-map.shtml

There is Positive lightning and Negative lightning

Lightning comes out of the ground as well as down from the sky

Ball lightning
Six striking facts about lightning

https://www.eit.edu.au/cms/resources/books/lightning-surge-protection-and-earthing-of-electrical-electronic-systems-in-industrial-networks

A lightning charge contains 30 million volts at 100,000 amperes. lightning strike delivers about 300 kilovolts.

Radius of lightning strike in water a strike will dissipate within 20 feet (6 metres):

https://www.reddit.com/r/askscience/comments/1mm794/when_lightning_hits_a_large_body_of_water_how_far/

Lightning does not usually penetrate deep into water. It disperses in all directions favouring the surface:

Radius of lightning strike travelling in the ground
Lightning ground currents can travel Outwards in every direction for up a 80+ meters

Lightning travelling in the clear sky in front of the storm

Few realize that one of the most dangerous times for a fatal strike is before the storm. Lightning may travel as far as 10 km nearly horizontally from the thunderhead and seem to occur “out of the clear blue sky” or at least when the day is still mostly sunny.

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Date: 21/03/2019 19:43:31
From: mollwollfumble
ID: 1363782
Subject: re: Thunderstorm with eye-popping 720GJ of energy

Tau.Neutrino said:


https://geology.com/articles/lightning-map.shtml

There is Positive lightning and Negative lightning

Lightning comes out of the ground as well as down from the sky

Ball lightning
Six striking facts about lightning

https://www.eit.edu.au/cms/resources/books/lightning-surge-protection-and-earthing-of-electrical-electronic-systems-in-industrial-networks

A lightning charge contains 30 million volts at 100,000 amperes. lightning strike delivers about 300 kilovolts.

Radius of lightning strike in water a strike will dissipate within 20 feet (6 metres):

https://www.reddit.com/r/askscience/comments/1mm794/when_lightning_hits_a_large_body_of_water_how_far/

Lightning does not usually penetrate deep into water. It disperses in all directions favouring the surface:

Radius of lightning strike travelling in the ground
Lightning ground currents can travel Outwards in every direction for up a 80+ meters

Lightning travelling in the clear sky in front of the storm

Few realize that one of the most dangerous times for a fatal strike is before the storm. Lightning may travel as far as 10 km nearly horizontally from the thunderhead and seem to occur “out of the clear blue sky” or at least when the day is still mostly sunny.

> Lightning does not usually penetrate deep into water. It disperses in all directions favouring the surface:

Yep. I used that yonks ago to calculate how close a swimmer would havebto be to a lighting strike in order to get electrocuted.

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