کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8132208 | 1523274 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Seismogenic ionospheric anomalies associated with the strong Indonesian earthquake occurred on 11 April 2012 (Mâ¯=â¯8.5)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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![عکس صفحه اول مقاله: Seismogenic ionospheric anomalies associated with the strong Indonesian earthquake occurred on 11 April 2012 (Mâ¯=â¯8.5) Seismogenic ionospheric anomalies associated with the strong Indonesian earthquake occurred on 11 April 2012 (Mâ¯=â¯8.5)](/preview/png/8132208.png)
چکیده انگلیسی
Ionospheric perturbations in possible association with a major earthquake (EQ) (Mâ¯=â¯8.5) which occurred in India-Oceania region are investigated by monitoring subionospheric propagation of VLF signals transmitted from the NWC transmitter (Fâ¯=â¯19.8â¯kHz), Australia to a receiving station at Varanasi (geographic lat. 25.3°N, long 82.99°E), India. The EQ occurred on 11 April 2012 at 08:38:35â¯h UT (magnitudeâ¯ââ¯8.5, depthâ¯=â¯10â¯km, and lat.â¯=â¯2.3°N, long.â¯=â¯93.0°E). A significant increase of few days before the EQ has been observed by using the VLF nighttime amplitude fluctuation method (fixed frequency transmitter signal). The analysis of total electron contents (TEC) derived from the global positioning system (GPS) at three different stations namely, Hyderabad (latitude 17.38°N, longitude 78.48°E), Singapore (latitude 1.37°N, longitude 103.84°E) and Port Blair (latitude 11.62°N, longitude 92.72°E) due to this EQ has also been presented. Significant perturbation in TEC data (enhancements and depletion) is noted before and after the main shock of the EQ. The possible mechanisms behind these perturbations due to EQ have also been discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 61, Issue 5, 1 March 2018, Pages 1244-1253
Journal: Advances in Space Research - Volume 61, Issue 5, 1 March 2018, Pages 1244-1253
نویسندگان
Uma Pandey, Ashutosh K. Singh, Sanjay Kumar, A.K. Singh,