EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information
Reeve & Rycroft 1976
Reeve, C.D. and Rycroft, M.J. (1976). A mechanism for precursors to whistlers. Journal of Geophysical Research 81. doi: 10.1029/JA081i034p05900. issn: 0148-0227.

The topic of the whistler precursor, a discrete VLF emission which is occasionally observed to preceed a whistler, is briefly reviewed. An analysis of some observations of precursors is presented, and two new mechanisms for the generation of precursors are described. It is shown that a mechanism in which two frequency components of a whistler, having the same group delay, interact to trigger a precursor at the difference of the frequencies does not predict results which agree well with observations. A mechanism in which part of the energy from the causative lightning stroke travels in an unducted mode, undergoing one magnetospheric reflection and refraction from the inner edge of the plasmapause, arriving in the equatorial plane with its wave vector parallel to the geomagnetic field, predicts results which are in good agreement with experimental observations. This method is compared with the model of Dowden (1972).

BACKGROUND DATA FILES

Abstract

Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/
Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org
Click to clear formClick to return to previous pageClick to submit