Further investigation of auroral roar fine structure

Details Further investigation of auroral roar fine structure Further investigation of auroral roar fine structure

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jgr...103.2219s&link_type=abstract

Journal of Geophysical Research, Volume 103, Issue A2, p. 2219-2230

Physics

19

Ionosphere: Auroral Ionosphere, Ionosphere: Plasma Waves And Instabilities, Magnetospheric Physics: Auroral Phenomena

Scientific paper

In April 1996, a downconverting receiver was operated in Churchill, Manitoba, Canada, to increase the statistics about the recently discovered fine structure of auroral roar emissions. Auroral roar is found to be both structured and unstructured. A wide variety of previously unknown tonal features drifting in a complicated manner were recorded. These structured features can be classified according to their duration, frequency drift, and grouping with like features. Typically, 95% of the structured features last less than 1 s. The slope of drifting features is more commonly negative than positive with a magnitude typically less than a few kHzs-1 and a maximum of ~800kHzs-1. The minimum bandwidth of features is 6 Hz or less, and typical separation between similar features is ~400Hz. These measurements form a basis for reviewing proposed generation mechanisms of auroral roar including a localized source model and laser cavity mechanism.

Affiliated with

Also associated with

No associations

Rating

Further investigation of auroral roar fine structure does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Further investigation of auroral roar fine structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Further investigation of auroral roar fine structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1226261