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. Thunder is seldom heard at distances over 20 kilometers (12 mi).[3] A very bright flash of lightning and an almost simultaneous sharp "crack" of thunder, a thundercrack, therefore indicates that the lightning strike was very near.
Meteor smoke explains much about NLCs, but a key mystery remains: Why are the clouds brightening and spreading?
One of the greenhouse gases that has become more abundant in Earth's atmosphere since the 19th century is methane. It comes from landfills, natural gas and petroleum systems, agricultural activities, and coal mining.
It turns out that methane boosts NLCs.
Radiation causes the atmosphere particles in this layer to become electrically charged (see ionosphere),
The stratosphere is situated between about 10 km (6 mi) and 50 km (30 mi) altitude above the surface at moderate latitudes, while at the poles it starts at about 8 km (5 mi) altitude.
reply to post by aboriginee
First they said, oh, it will take 100 years to reach us. Then they told us that it had changed dramatically, nothing about when it would reach us. And in their last press conference they claimed, that they could measure the velocity of particles from the G cloud flying into Ibex. But we are still far away from the G-cloud. What I think they measure is the ribbon, which originates from interaction of the cloud we are in and the G cloud. en.wikipedia.org... It all hangs together, fact is, there is change going on in our solar system, which affects us on earth, the results are manifold
Originally posted by kitkatcat
reply to post by Visiting ESB
It's about time someone thought to gather all these sighting into one thread. Starred and flagged :]
It sounds so much like a very prolonged though... I'm interested to hear what everyone else can explain it with. I'm stumped personally, but then again I'm not a meteorologist :/
Originally posted by aboriginee
reply to post by will615
I think it`s something with magnetism.
About one month ago we had a thunderstorm here in Germany where I live, about 60 kilometers from Frankfurt.
Okay, it was a week thunderstorm regarding thunders and storm.
But there were many, many lightnings, it lasted more than 3 hours.
Has anyone ever seen lightnings without thunder?
No, I dont mean the light of lightnings, that are far away. They happened just above my head!
Normally, when you see a lightning just above you, a very strong thunder follows at once.
But nothing happened! That went zack, zack, zack, every few seconds.
I called my husband, we`ve never seen something like that.
It was already night and therefore we didn`t want to wake up neighbours or friends.
But a friend of mine, she`lives in our village, told me about it later. She also called her husband, and they observed the lightnings, she did it for hours.
Okay, perhaps you don`t know, that people in villages in Germany normally tear down their roller blinds (are those the right words?) in the dawn.
But there was also nothing written about it in our regional newspapers or in the internet.
Originally posted by MamaJ
Also agree!!!!!!!
reply to post by aboriginee
First they said, oh, it will take 100 years to reach us. Then they told us that it had changed dramatically, nothing about when it would reach us. And in their last press conference they claimed, that they could measure the velocity of particles from the G cloud flying into Ibex. But we are still far away from the G-cloud. What I think they measure is the ribbon, which originates from interaction of the cloud we are in and the G cloud. en.wikipedia.org... It all hangs together, fact is, there is change going on in our solar system, which affects us on earth, the results are manifold
We are in a part (G Cloud) that has an abundance of life and energized particles. We were here before.
Makes one wonder why are we sooo interested in studying our Van Allen Belt at this time? The particles are held in tact with not only the Van Allen but our Magnetosphere as well.
It is all related in my opinion.
In the beginning of this thread I asked people to watch Susan Rennison's lecture on the G Cloud. She knows what she is talking about. Again, its all related!