Modeling of equatorial plasma bubbles triggered by non-equatorial traveling ionospheric disturbances

被引：48

作者：

Krall, J. ^{[1
]}

Huba, J. D. ^{[1
]}

Ossakow, S. L. ^{[2
]}

Joyce, G. ^{[3
]}

Makela, J. J. ^{[4
]}

Miller, E. S. ^{[5
]}

Kelley, M. C. ^{[6
]}

机构：

[1] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA

[2] Berkeley Res Associates Inc, Beltsville, MD 20705 USA

[3] Icarus Res Inc, Bethesda, MD 20824 USA

[4] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

[5] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[6] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14850 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2011年 / 38卷

基金：

美国国家科学基金会;

关键词：

TO-DAY VARIABILITY; SPREAD-F; AIRGLOW OBSERVATIONS; REGION; SHEAR; IRREGULARITIES; HALEAKALA; EVOLUTION; HAWAII;

D O I：

10.1029/2011GL046890

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Naval Research Laboratory three-dimensional simulation code SAMI3/ESF is used to study the response of the post-sunset ionosphere to electrified mesoscale traveling ionospheric disturbances (MSTIDs). An MSTID is modeled as an externally-imposed traveling-wave E field with wavelength 250 km and period 1 h that drives vertical E x B drifts of up to +/- 50 m/s. We find that the coupling between the MSTID at low-to mid-latitudes and the equatorial F layer leads to growth of equatorial plasma bubbles (EPBs). This coupling is strongest when the wave vector is perpendicular to the geomagnetic field. Model results reproduce key features of observed nighttime MSTIDs and associated EPBs. Citation: Krall, J., J. D. Huba, S. L. Ossakow, G. Joyce, J. J. Makela, E. S. Miller, and M. C. Kelley (2011), Modeling of equatorial plasma bubbles triggered by non-equatorial traveling ionospheric disturbances, Geophys. Res. Lett., 38, L08103, doi: 10.1029/2011GL046890.

引用

页数：5

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