Comparative morphological analysis of the diurnal rhythms in geomagnetic and seismic activity

详细信息    查看全文

• 作者：A. V. Desherevskii ; A. Ya. Sidorin
• 关键词：seismicity ; Garm research area ; geomagnetic activity ; Tashkent Astronomical Observatory ; diurnal rhythm ; diurnal rhythm structure
• 刊名：Izvestiya, Atmospheric and Oceanic Physics
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：52
• 期：8
• 页码：853-861
• 全文大小：
• 刊物主题：Geophysics/Geodesy; Climatology;
• 出版者：Pleiades Publishing
• ISSN：1555-628X
• 卷排序：52

文摘

To verify the hypothesis of the possible influence of geomagnetic variations on seismicity, the structures of the diurnal rhythms of seismicity in Garm research area, Tajikistan, and geomagnetic activity are investigated in detail using the regional index of geomagnetic activity at the Tashkent Astronomical Observatory. We compare (1) the average shape of the diurnal variations and its seasonal changes; (2) temporal changes in special coefficients of the amplitude variations and the diurnal variation stability. It is revealed that the dynamics of the mentioned parameters differ considerably between the geomagnetic and seismic activities. We conclude that the results obtained on the basis of the used data and processing techniques do not confirm the hypothesis of possible influence of weak geomagnetic variations on background seismicity in the Garm region, Tajikistan.