skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: On the ELF generation efficiency of the Tromsoe heater facility

Abstract

Using amplitude modulation derived from repetitive pulses of varying duty cycle with the Tromsoe heater facility, the authors determine the ratio of the heating to cooling time constants of ELF currents generated in the D-region. This ratio is found to decrease from 1.03 {plus minus} 0.07 at 510 Hz to 0.28 {plus minus} 0.03 at 6,010 kHz. These results, which were obtained using an effective radiated power of 240 MW, suggest that future heater facilities designed to optimize ELF radiation efficiency using the technique of beam painting' will have to operate at considerably higher power levels than the Tromsoe facility if any practical advantages are to be gained.

Authors:
 [1];  [2]
  1. (Dept. of Scientific and Industrial Research, Lower Hutt (New Zealand))
  2. (Max-Planck-Inst. fuer Aeronomie, Katlenburg-Lindau (Germany))
Publication Date:
OSTI Identifier:
7049194
Resource Type:
Journal Article
Resource Relation:
Journal Name: Geophysical Research Letters (American Geophysical Union); (United States); Journal Volume: 18:11
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; IONOSPHERE; PLASMA HEATING; ALASKA; AMPLITUDES; COOLING; EFFICIENCY; LONG WAVE RADIATION; MATHEMATICAL MODELS; MODULATION; PULSES; DEVELOPED COUNTRIES; EARTH ATMOSPHERE; ELECTROMAGNETIC RADIATION; HEATING; NORTH AMERICA; PLANETARY IONOSPHERES; RADIATIONS; RADIOWAVE RADIATION; USA; 661320* - Auroral, Ionospheric, & Magnetospheric Phenomena- (1992-)

Citation Formats

Barr, R., and Stubbe, P. On the ELF generation efficiency of the Tromsoe heater facility. United States: N. p., 1991. Web. doi:10.1029/91GL02544.
Barr, R., & Stubbe, P. On the ELF generation efficiency of the Tromsoe heater facility. United States. doi:10.1029/91GL02544.
Barr, R., and Stubbe, P. Fri . "On the ELF generation efficiency of the Tromsoe heater facility". United States. doi:10.1029/91GL02544.
@article{osti_7049194,
title = {On the ELF generation efficiency of the Tromsoe heater facility},
author = {Barr, R. and Stubbe, P.},
abstractNote = {Using amplitude modulation derived from repetitive pulses of varying duty cycle with the Tromsoe heater facility, the authors determine the ratio of the heating to cooling time constants of ELF currents generated in the D-region. This ratio is found to decrease from 1.03 {plus minus} 0.07 at 510 Hz to 0.28 {plus minus} 0.03 at 6,010 kHz. These results, which were obtained using an effective radiated power of 240 MW, suggest that future heater facilities designed to optimize ELF radiation efficiency using the technique of beam painting' will have to operate at considerably higher power levels than the Tromsoe facility if any practical advantages are to be gained.},
doi = {10.1029/91GL02544},
journal = {Geophysical Research Letters (American Geophysical Union); (United States)},
number = ,
volume = 18:11,
place = {United States},
year = {Fri Nov 01 00:00:00 EST 1991},
month = {Fri Nov 01 00:00:00 EST 1991}
}