TIME RESOLVED SIMULATION OF LIGHTNING BY LIP

被引：26

作者：

JEBENS, DS ^{[1
]}

LAKKARAJU, HS ^{[1
]}

MCKAY, CP ^{[1
]}

BORUCKI, WJ ^{[1
]}

机构：

[1] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035

来源：

GEOPHYSICAL RESEARCH LETTERS | 1992年 / 19卷 / 03期

关键词：

D O I：

10.1029/91GL02937

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In this letter, we report results of time resolved spectra of lightning simulation in air by laser-induced plasma (LIP). The measured electron temperatures varied from (1.7 +/- 0.1)X10(4) K at 600 ns to (1.2 +/- 0.1)X10(4) K at 4-mu-s after the ignition of the plasma. Electron densities in the plasma varied from (7.0 +/- 1.4)X10(17)/cm3 to (9.0 +/- 1.8)X10(16)/cm3 for the above times.. We also present, for the first time, a comparison of state variables for LIP and natural lightning. We find that immediately following the ignition both natural lightning and LIP reach temperatures in excess of 16,000 K and relax to ambient pressure with different rates. They are expected to approach 2000 - 4000 K temperature range, which is important to chemical synthesis, in an asymptotically similar fashion.

引用

页码：273 / 276

页数：4

共 24 条

[11] LIGHTNING GENERATION IN PLANETARY-ATMOSPHERES [J].