Characteristics and generation of secondary jets and secondary gigantic jets

Li Jou Lee, Sung Ming Huang, Jung Kung Chou, Cheng Ling Kuo, Bing-Chih Chen, Han-Tzong Su, Rue-Ron Hsu, Harald U. Frey, Yukihiro Takahashi, Lou Chuang Lee

研究成果: Article

14 引文 斯高帕斯(Scopus)

摘要

Secondary transient luminous events (TLEs) recorded by the ISUAL-FORMOSAT2 mission can either be secondary jets or secondary gigantic jets (GJs), depending on their terminal altitudes. The secondary jets emerge from the cloud top beneath the preceding sprites and extend upward to the base of the sprites at ∼50 km. The secondary jets likely are negative electric discharges with vertically straight luminous columns, morphologically resembling the trailing jet of the type-I GJs. The number of luminous columns in a secondary jet seems to be affected by the size of the effective capacitor plate formed near the base of the preceding sprites and the charge distribution left behind by the sprite-inducing positive cloud-to-ground discharges. The secondary GJs originate from the cloud top under the shielding area of the preceding sprites, and develop upward to reach the lower ionosphere at ∼90 km. The observed morphology of the secondary GJs can either be the curvy shifted secondary GJs extending outside the region occupied by the preceding sprites or the straight pop-through secondary GJs developing through the center of the preceding circular sprites. A key factor in determining the terminal height of the secondary TLEs appears to be the local ionosphere boundary height that established by the preceding sprites. The abundance and the distribution of the negative charge in the thundercloud following the sprite-inducing positive cloud-to-ground discharges may play important role in the generation of the secondary TLEs.

原文English
文章編號A06317
期刊Journal of Geophysical Research: Space Physics
117
發行號6
DOIs
出版狀態Published - 2012 一月 1

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

指紋 深入研究「Characteristics and generation of secondary jets and secondary gigantic jets」主題。共同形成了獨特的指紋。

  • 引用此