Seismic Effects in F2 Region Related to Electron Temperature

The effect of earthquakes in the ionospheric F2 range was studied using the Indian satellite SROSS-C2 data on the cosmic electron temperature around the Indian sector in the ranges 0-34 ° N and 40-100 ° E for the period 1995-1997. Five episodes of earthquakes were analyzed and the observed anomalies...

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Bibliographic Details
Date:2011
Main Authors: Sharma, A. K., Patil, A. V., Bhonsle, R. V., Vhatkar, R. S., Subrahmanyam, P.
Format: Article
Language:English
Published: S. Subbotin Institute of Geophysics of the NAS of Ukraine 2011
Online Access:https://journals.uran.ua/geofizicheskiy/article/view/117302
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Journal Title:Geofizicheskiy Zhurnal

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Geofizicheskiy Zhurnal
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Summary:The effect of earthquakes in the ionospheric F2 range was studied using the Indian satellite SROSS-C2 data on the cosmic electron temperature around the Indian sector in the ranges 0-34 ° N and 40-100 ° E for the period 1995-1997. Five episodes of earthquakes were analyzed and the observed anomalies at an average electron temperature were 29 to 10% higher than in the preceding days, and 16 to 4% higher than on days after the earthquake, and a latitudinal variation of this temperature. It is shown that the increase in this temperature was the maximum on the day preceding the earthquake, and for several hours before and after it. The anomalies observed around (in the ± 2-degree latitude range) were the epicenter of the earthquake. They were probably observed due to electromagnetic radiation during the earthquake activity. The period from 1995 to 1997 for this study was taken as a period of quiet geomagnetic conditions.