Prediction of Lightning Inception by Large Ice Particles and Extensive Air Showers

被引：76

作者：

Dubinova, Anna ^{[1
]}

Rutjes, Casper ^{[1
]}

Ebert, Ute ^{[1
,2
]}

Buitink, Stijn ^{[3
]}

Scholten, Olaf ^{[3
,4
]}

Gia Thi Ngoc Trinh ^{[4
]}

机构：

[1] CWI, NL-1009 AB Amsterdam, Netherlands

[2] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands

[3] Vrije Univ Brussel, Brussels, Belgium

[4] Univ Groningen, KVI CART, Groningen, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 01期

关键词：

STREAMER DISCHARGES;

D O I：

10.1103/PhysRevLett.115.015002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive that lightning can start if the electric field is 15% of the breakdown field, and if elongated ice particles of 6 cm length and 100 free electrons per cm(3) are present. This is one particular example set from a parameter range that we discuss as well. Our simulations include the permittivity epsilon(omega) of ice. 100 free electrons per cm(3) exist at 5.5 km altitude in air showers created by cosmic particles of at least 5 x 10(15) eV. If the electric field zone is 3 m high and 0.2 km(2) in the horizontal direction, at least one discharge per minute can be triggered. The size distribution of the ice particles is crucial for our argument; more detailed measurements would be desirable.

引用

页数：5

共 25 条

[1] Water and Ice Dielectric Spectra Scaling at 0°C [J].