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什么导致了"正面"闪电是少见的,更高的指控,比“负面”闪电,并且持续的时间更久吗?

为什么"正面"闪电少见,更亮,更高的指控,比“负面”闪电,并且持续的时间更久吗?还有其他独特的特征正闪电,使它有别于更常见的负闪电吗?

积极的闪电和消极的闪电

罕见:1:10 - 1:20(平均)
费用:10:1(平均)

(我想象,亮度和时间相关的费用)。

回答

积极的闪电确实是非常有趣的。[据美国国家气象局][1],它有一个更高的安培数的原因和电压是由于由于空气的数量必须通过到达地面。否则,它永远不会到达地面。>,因为它源自上层的风暴,* *的空气量>,它必须通过燃烧达到地面通常更大。>因此,其电场通常远比> -罢工。* *其闪光持续时间较长,其峰值电荷和>潜力可以十倍大于消极罢工;高达300000 >安培,十亿伏!这也占积极闪电的亮度和延长时间,作为一个高安培数和电压罢工会亮,且要花很长的时间来消散。(本页)[2]讨论为什么积极的闪电。它说:“积极的闪电”是一个简单的过程,完成电子>电路从云到地上,回到云。 **As > negative lightning strikes the ground, the ground becomes negatively > charged over a wide area. As the storm moves over this area and past > it, the H+ in the upper reaches of the cloud feels this potential > difference from the ground and sends out a positive streamer which, > for all intents, looks like normal negative lightning. The ground > sends up a negative streamer and once these two join, electrons from > the ground flow upwards to the H+ in the top of the cloud. The ground > then becomes neutral once again. The ground will hold the negative > charge of dozens of negative strikes, building up a huge potential, > before positive lightning will occur.** This is why positive lightning > is so powerful. > > ![enter image description here][3] Positive lightning is probably so rare because it takes so many negative strikes in order for enough energy to build up to cause a positive lightening strike. There are quite a few interesting facts about positive lightning: > Some interesting properties of positive lightning: > > - Positive lightning can be the dominate type of cloud-to-ground during the winter months and in the dissipating stage of a > thunderstorm. > > - Positive lightning has been identified as a major source for the recently discovered sprites and elves. Sprites and elves are most > likely lightning discharges but occur from 18-60 miles (30-95 km) in > altitude, well above the parent thunderstorm. > > - Positive lightning is usually composed of one stroke (negative lightning typically consists of two or more strokes) [Another NOAA site says][4] that positive lightning can strike "near the edge of a cloud", or even 10 miles away from the cloud! This means that a positive lighting strike *could* occur somewhere where the sky is blue, and it's not raining. In addition, there is also a type of lightning called "bipolar" lightning, which *changes* its polarity. [1]: http://www.srh.noaa.gov/jetstream/lightning/positive.htm [2]: http://diaxiomtechnologies.com/what-creates-positive-lightning [3]: http://i.stack.imgur.com/zCVLj.jpg [4]: https://www.nssl.noaa.gov/education/svrwx101/lightning/faq/

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\ begingroup美元我很谨慎,相信第二个网站链接,除非你也有个人知识的主题。 \ endgroup美元
- - - - - -半日西蒙
2014年4月20日6点12
\ begingroup美元说到第二个链接,它是破碎的11月8日。也许编辑? \ endgroup美元
- - - - - -Gimelist
2014年11月8日在34
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\ begingroup美元 @Michael我找不到第二个链接机器Wayback还是其他地方…我也找不到第二个的信息来源。也许我不善于搜索,或者这些信息并不存在(因此不应该信任)。 \ endgroup美元
- - - - - -hichris123 ♦
2015年3月2日,在和

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