globalchange  > 气候变化与战略
DOI: 10.1016/j.jog.2020.101721
论文题名:
Analysis of ionospheric TEC anomalies for global earthquakes during 2000-2019 with respect to earthquake magnitude (Mw≥6.0)
作者: Ulukavak M.; Yalçınkaya M.; Kayıkçı E.T.; Öztürk S.; Kandemir R.; Karslı H.
刊名: Journal of Geodynamics
ISSN: 2643707
出版年: 2020
卷: 135
语种: 英语
英文关键词: Earthquake magnitude ; Geomagnetic storm indices ; Ionospheric total electron content (TEC) ; Solar activity indices
英文摘要: In this work, a relationship between ionospheric TEC anomalies and different earthquake magnitude groups before the main shocks was investigated. For this purpose, 2942 global earthquakes with Mw≥6 from 2000 to 2019 and possible ionospheric TEC anomalies that occurred before earthquakes were examined by considering 13 different index values of space weather conditions (geomagnetic storm indices and solar activity indices). Anomalies of ionospheric TEC changes were defined for 15-days before and 4-days after the earthquakes by using 15-days moving median method with the length of 15 days. Earthquakes were first grouped according to their magnitudes, and then negative and positive TEC anomalies in quiet days before the earthquakes were detected. These anomalies were observed as ∼5–13, ∼5-10, ∼5-15, ∼3-13, ∼7-15, ∼1 and ∼5-8 days ago for the earthquakes of 6.0 ≤ Mw<6.5, 6.5 ≤ Mw<7.0, 7.0 ≤ Mw<7.5, 7.5 ≤ Mw<8.0, 8.0 ≤ Mw<8.5, 8.5 ≤ Mw<9.0, and 9.0 ≤ Mw<9.5, respectively. Mean of changes in TEC anomalies of these groups is 44.2 % TECU and we detected that the number of positive anomalies in each group is larger than the number of negative anomalies. Consequently, these analyses clearly show that the day-to-day changes in TEC anomalies may supply significant precursors prior to the global earthquakes (M ≥ 6) in the short-term earthquake prediction for main shocks. © 2020 Elsevier Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158473
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Harran University, Engineering Faculty, Department of Geomatic Engineering, Sanlıurfa, Turkey; Karadeniz Technical University, Engineering Faculty, Department of Geomatic Engineering, Trabzon, Turkey; Gümüşhane University, Faculty of Engineering and Natural Sciences, Department of Geophysics, Gümüşhane, Turkey; Recep Tayyip Erdoğan University, Engineering Faculty, Department of Geology Engineering, Rize, Turkey; Karadeniz Technical University, Engineering Faculty, Department of Geophysics, Trabzon, Turkey

Recommended Citation:
Ulukavak M.,Yalçınkaya M.,Kayıkçı E.T.,et al. Analysis of ionospheric TEC anomalies for global earthquakes during 2000-2019 with respect to earthquake magnitude (Mw≥6.0)[J]. Journal of Geodynamics,2020-01-01,135
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Ulukavak M.]'s Articles
[Yalçınkaya M.]'s Articles
[Kayıkçı E.T.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Ulukavak M.]'s Articles
[Yalçınkaya M.]'s Articles
[Kayıkçı E.T.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Ulukavak M.]‘s Articles
[Yalçınkaya M.]‘s Articles
[Kayıkçı E.T.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.