Possible reason of ionospheric anomaly post the April 20, 2013, Mw = 6.6 China' Lushan earthquake: Applying two-dimensional principal component analysis (2DPCA) to two-dimensional total electron content (TEC)
Keyword(s):
In this study, two-dimensional principal component analysis (2DPCA) was used to determine the reason for the ionospheric two-dimensional total electron content (TEC) anomaly after China's Lushan earthquake at 00:02:47 UT on April 20, 2013 (Mw = 6.6). TEC data from 00:00 to 00:15 (UT) on April 20, 2013 were examined. The TEC anomaly was very intense 00:05 to 00:10 (UT) after the earthquake. One potential cause of the TEC anomaly, which might have been a density variance, is a rising acoustic shock wave, with speed of at least 1127.82, ms−1, resulting from the mainshock. The duration of the TEC anomaly was at least 5 min.
2010 ◽
Vol 45
(11)
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pp. 1301-1310
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2011 ◽
Vol 2011
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pp. 1-12
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Spatial and temporal variation of total electron content as revealed by principal component analysis
2016 ◽
Vol 34
(12)
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pp. 1109-1117
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2013 ◽
Vol 24
(2)
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pp. 244-253
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2012 ◽
Vol 341
(2)
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pp. 251-258
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2018 ◽