| 单词 | blue jet |
| 释义 | > as lemmasblue jet blue jet n. Atmospheric Physics a cone of faint blue light, lasting less than a second, occasionally observed rising above an intense thunderstorm in the upper stratosphere and reaching to the ionosphere. ΚΠ 1994 CNN News (transcript of TV programme) (Nexis) 30 July Another phenomenon that was captured on video—blue jets. It's not clear if the jets are a form of lightning, or something different. 1995 D. D. Sentman & E. M. Westcott in Physics of Plasmas 2 2517/1 On the night of 4 July 1994, image sequences of 56 events of a previously undocumented type of phenomenon, dubbed ‘blue jets’, were unexpectedly obtained. 2003 San Francisco Chron. (Nexis) 30 June a4 Last year, Pasko and his colleagues reported observing a stunningly tall blue jet. It leaped from the top of a thunderstorm to a height of more than 40 miles. 2012 D. A. J. Seargeant Weird Weather iv. 185 There appears to be a tendency for blue jets to appear above storms in which a significant amount of hail is falling. < as lemmas |
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