کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1765910 | 1020126 | 2011 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pre-storm behaviour of NmF2 and TEC (GPS) over equatorial and low latitude stations in the Indian sector
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The pre-storm behavior of NmF2 and TEC over an equatorial station, Trivandrum (8.47°N, 76.91°E, dip 0.6°S) and a low latitude station, Waltair (17.7°N,83.3°E, dip 20°N) has been studied for a total of 18 strong geomagnetic storms with DST ⩽ â100 nT. The simultaneous measurements of GPS-TEC and NmF2 over Trivandrum and Waltair during the period 2000-2005 have been considered for the present study. It is found that there is a substantial increase in NmF2 and TEC before the onset of the storm over Waltair, while the increase is not present at Trivandrum. The origin of pre-storm enhancements in electron density still remains unresolved owing to several conditions in their potential sources and occurrence mechanisms. In the present study an attempt is made to identify the possible mechanisms responsible for such enhancements in electron density of the F-region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 48, Issue 2, 15 July 2011, Pages 207-217
Journal: Advances in Space Research - Volume 48, Issue 2, 15 July 2011, Pages 207-217
نویسندگان
P.L. Saranya, K. Venkatesh, D.S.V.V.D. Prasad, P.V.S. Rama Rao, K. Niranjan,