کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1778114 | 1021781 | 2007 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the statistical correlation of over-horizon VHF signals with meteorological radio ducting and seismicity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
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چکیده انگلیسی
With the use of a complete 1 year (2005) data on over-horizon VHF signals (transmitted in Sendai and received in Chofu), we have investigated the statistical significance on the correlation of VHF signal characteristics (amplitude and variance) with meteorological radio duct effect and seismicity (earthquakes). It is found that the meteorological radio duct effect is rather predominant in July-September. On the other hand, over-horizon VHF signals are found to be correlated with earthquakes in other seasons. Especially, when we narrow our analysis area just around the middle region of the great-circle path, we have always significant correlation between VHF signal characteristics (average, median intensity or variance) with seismicity in any months of the year, with exceeding the confidence level.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Atmospheric and Solar-Terrestrial Physics - Volume 69, Issue 6, April 2007, Pages 661-674
Journal: Journal of Atmospheric and Solar-Terrestrial Physics - Volume 69, Issue 6, April 2007, Pages 661-674
نویسندگان
N. Yonaiguchi, Y. Ida, M. Hayakawa,