Geomagnetic control of equatorial plasma bubble activity modeled by the TIEGCM with <i>Kp</i>
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- B. A. Carter
- Institute for Scientific Research Boston College Newton Massachusetts USA
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- J. M. Retterer
- Institute for Scientific Research Boston College Newton Massachusetts USA
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- E. Yizengaw
- Institute for Scientific Research Boston College Newton Massachusetts USA
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- K. Groves
- Institute for Scientific Research Boston College Newton Massachusetts USA
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- R. Caton
- Air Force Research Laboratory Kirkland AFB Albuquerque New Mexico USA
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- L. McNamara
- Air Force Research Laboratory Kirkland AFB Albuquerque New Mexico USA
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- C. Bridgwood
- Institute for Scientific Research Boston College Newton Massachusetts USA
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- M. Francis
- IPS Radio and Space Services Bureau of Meteorology Sydney New South Wales Australia
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- M. Terkildsen
- IPS Radio and Space Services Bureau of Meteorology Sydney New South Wales Australia
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- R. Norman
- SPACE Research Centre RMIT University Melbourne Victoria Australia
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- K. Zhang
- SPACE Research Centre RMIT University Melbourne Victoria Australia
書誌事項
- 公開日
- 2014-08
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/2014gl060953
- 公開者
- American Geophysical Union (AGU)
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Describing the day‐to‐day variability of Equatorial Plasma Bubble (EPB) occurrence remains a significant challenge. In this study we use the Thermosphere‐Ionosphere Electrodynamics General Circulation Model (TIEGCM), driven by solar (<jats:italic>F</jats:italic><jats:sub>10.7</jats:sub>) and geomagnetic (<jats:italic>K</jats:italic><jats:italic>p</jats:italic>) activity indices, to study daily variations of the linear Rayleigh‐Taylor (R‐T) instability growth rate in relation to the measured scintillation strength at five longitudinally distributed stations. For locations characterized by generally favorable conditions for EPB growth (i.e., within the scintillation season for that location), we find that the TIEGCM is capable of identifying days when EPB development, determined from the calculated R‐T growth rate, is suppressed as a result of geomagnetic activity. Both observed and modeled upward plasma drifts indicate that the prereversal enhancement scales linearly with <jats:italic>K</jats:italic><jats:italic>p</jats:italic> from several hours prior, from which it is concluded that even small <jats:italic>K</jats:italic><jats:italic>p</jats:italic> changes cause significant variations in daily EPB growth.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 41 (15), 5331-5339, 2014-08
American Geophysical Union (AGU)
