کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1768183 | 1020217 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Generation of secondary waves due to intensive large-scale AGW traveling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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چکیده انگلیسی
By using data from GPS receivers we detected huge-amplitude solitary large-scale traveling acoustic-gravity waves (LS AGW) which manifested themselves as perturbations of total electron content (TEC) of duration of about 40Â min. Originated in the auroral area after significant alterations of geomagnetic field intensity during geomagnetic storms on 29-30 October 2003, LS disturbances propagated with a velocity about 1000-1200Â m/s and caused generation of secondary small-scale (SS) waves with time period of 2-10Â min. Such SS structure followed the solitary intensive AGW at a distance more than 4000Â km. However, we observed such phenomenon only within the territory with high values of “vertical” TEC and steep gradients of TEC. Apparently, these conditions are necessary for generation of SS waves due to propagation of LS AGW.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 41, Issue 9, 2008, Pages 1459-1462
Journal: Advances in Space Research - Volume 41, Issue 9, 2008, Pages 1459-1462
نویسندگان
E.I. Astafyeva, E.L. Afraimovich, S.V. Voeykov,