Numerical Modeling of Lightning, Blue Jets, and Gigantic Jets
Details
Blue jets and gigantic jets are transient luminous events in the middle atmosphere that form when conventional lightning leaders escape upward from thundercloud tops and propagate toward the lower ionosphere. Petrov and Petrova [1999] first expressed that jets could be the extension of classic lightning discharges initiated within the cloud boundaries. This dissertation demonstrates the fundamental physical similarities between the various electrical discharges known to occur in the thundercloud due to local and global charge imbalances. How charge imbalances form in the thundercloud has been first suggested by Wilson [1921], but their impact on the occurrence of blue and gigantic jets was not explored. This work shows that the accumulation of screening charges near the thundercloud top produces a charge configuration leading to the initiation of blue jets, and the effective mixing of these charges with the upper thundercloud charge to that of gigantic jets. Also, the physics of lightning and jets, and many of the small-scale features observed in jets can be interpreted in terms of streamers (needle-shaped filaments of ionization), and are further explored via numerical modeling.
Autorentext
Jeremy A Riousset graduated from Penn State with a MS in Electrical Engineering and with a MEng in Engineering Sciences from the Ecole Centrale de Lyon in 2006. His research interests focus on modeling of lightning, blue jets and gigantic jets. Jeremy is currently finishing his PhD at Penn State and has been a member of TBP since 2008.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09783848407200
- Auflage Aufl.
- Sprache Englisch
- Genre Physik & Astronomie
- Größe H220mm x B13mm x T150mm
- Jahr 2012
- EAN 9783848407200
- Format Kartonierter Einband (Kt)
- ISBN 978-3-8484-0720-0
- Titel Numerical Modeling of Lightning, Blue Jets, and Gigantic Jets
- Autor Jérémy Riousset
- Gewicht 309g
- Herausgeber LAP Lambert Academic Publishing
- Anzahl Seiten 220