Linear theory and modeling of the Rayleigh-Taylor instability leading to the occurrence of equatorial spread F

Details Linear theory and modeling of the Rayleigh-Taylor instability leading to the occurrence of equatorial spread F Linear theory and modeling of the Rayleigh-Taylor instability leading to the occurrence of equatorial spread F

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...10126875s&link_type=abstract

Journal of Geophysical Research, Volume 101, Issue A12, p. 26875-26892

Mathematics

Logic

113

Ionosphere: Equatorial Ionosphere, Ionosphere: Ionospheric Irregularities, Ionosphere: Modeling And Forecasting

Scientific paper

In a test of the generally accepted Rayleigh-Taylor (R-T) instability mechanism for equatorial spread F (ESF) a linear instability growth rate γRT is derived following the formalism of Haerendel (preprint, 1973) which takes into account the variations of physical parameters along geomagnetic flux tubes. The resulting form of γRT extends the results of previous work by including direct dependencies on transequatorial neutral winds, zonal electric fields, vertical and horizontal ionospheric density gradients, the presence of an E region, and chemical recombination. Realistic atmospheric and ionospheric density model inputs are used for the first time to make quantitative calculations of R-T growth rates for a range of geophysical conditions. The key result of this study is that time/altitude domains having positive calculated instability growth rates are found to coincide with observed time/altitude patterns of ESF occurrence over both a monthly and a yearly time frame. This success in being able to model the climatological occurrence of ESF lends support to the physical model adopted for the instability mechanism and opens up new avenues of research into ESF predictability on a night-to-night and even an hour-to-hour basis.

Affiliated with

Also associated with

No associations

Rating

Linear theory and modeling of the Rayleigh-Taylor instability leading to the occurrence of equatorial spread F 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 Linear theory and modeling of the Rayleigh-Taylor instability leading to the occurrence of equatorial spread F, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear theory and modeling of the Rayleigh-Taylor instability leading to the occurrence of equatorial spread F will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1502771