Early trimpi events from lightning-induced electric fields in the ionosphere: An alternative explanation. (Reannouncement with new availability information)
Technical Report
·
OSTI ID:166837
Two classes of Trimpi modulation of VLF signals in the Earth-ionosphere waveguide have been identified in the literature. The more common type occurs 1 s or more after causative lightning strokes, the second in less than 100 ms. The authors explore the possibility that these early Trimpi events result from lightning-generated, electric field impulses lowering the mirror altitudes of trapped electrons. To overcome the mirror force on energetic electrons, upward-directed electric fields with strength of a few tens of mV/m are required. This is well within the range of electric field observed on sounding rockets above thunderstorms.
- Research Organization:
- Phillips Lab., Hanscom AFB, MA (United States)
- OSTI ID:
- 166837
- Report Number(s):
- AD-A--248611/6/XAB; PL-TR--92-2075
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ionospheric VLF waves and optical phenomena over active thunderstorms. Ph.D. Thesis
Ionospheric VLF waves and optical phenomena over active thunderstorms. [VLF (very low frequency)]
Modification of the lower ionosphere in lighting-induced electron precipitation events and through VLF heating
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1992
·
OSTI ID:237299
Ionospheric VLF waves and optical phenomena over active thunderstorms. [VLF (very low frequency)]
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1992
·
OSTI ID:6924391
Modification of the lower ionosphere in lighting-induced electron precipitation events and through VLF heating
Technical Report
·
Mon Oct 01 00:00:00 EDT 1990
·
OSTI ID:7262039