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Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC

With the rapid development of space geodetic information technology, the Global Positioning System (GPS) has been widely used in seismology and space environmental research. Typically, the occurrence of a large earthquake will lead to some changes in the ionosphere, this phenomenon is called coseism...

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Autores principales: Ruan, Qingshan, Yuan, Xitun, Liu, Hang, Ge, Shuyao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10314908/
https://www.ncbi.nlm.nih.gov/pubmed/37393363
http://dx.doi.org/10.1038/s41598-023-37374-9
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author Ruan, Qingshan
Yuan, Xitun
Liu, Hang
Ge, Shuyao
author_facet Ruan, Qingshan
Yuan, Xitun
Liu, Hang
Ge, Shuyao
author_sort Ruan, Qingshan
collection PubMed
description With the rapid development of space geodetic information technology, the Global Positioning System (GPS) has been widely used in seismology and space environmental research. Typically, the occurrence of a large earthquake will lead to some changes in the ionosphere, this phenomenon is called coseismic ionospheric disturbances (CIDs). In this contribution, differential slant total electron content (dSTEC) is used to study the anomalous characteristics of the ionosphere. First, based on the ionospheric dSTEC time series and two-dimensional disturbance detection, the temporal and spatial characteristics of ionospheric disturbances can be accurately analysed. Secondly, using wavelet transform spectrum analysis and disturbance propagation velocity, it can be determined that the disturbance sources of this earthquake can be identified as acoustic wave, gravity wave and Rayleigh wave. Finally, in order to further clarify the direction of the earthquake disturbance, this study focuses on proposing an innovative method for the disturbance propagation direction, and determines that there are two directions of the propagation of the CIDs of the Alaski earthquake.
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spelling pubmed-103149082023-07-03 Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC Ruan, Qingshan Yuan, Xitun Liu, Hang Ge, Shuyao Sci Rep Article With the rapid development of space geodetic information technology, the Global Positioning System (GPS) has been widely used in seismology and space environmental research. Typically, the occurrence of a large earthquake will lead to some changes in the ionosphere, this phenomenon is called coseismic ionospheric disturbances (CIDs). In this contribution, differential slant total electron content (dSTEC) is used to study the anomalous characteristics of the ionosphere. First, based on the ionospheric dSTEC time series and two-dimensional disturbance detection, the temporal and spatial characteristics of ionospheric disturbances can be accurately analysed. Secondly, using wavelet transform spectrum analysis and disturbance propagation velocity, it can be determined that the disturbance sources of this earthquake can be identified as acoustic wave, gravity wave and Rayleigh wave. Finally, in order to further clarify the direction of the earthquake disturbance, this study focuses on proposing an innovative method for the disturbance propagation direction, and determines that there are two directions of the propagation of the CIDs of the Alaski earthquake. Nature Publishing Group UK 2023-07-01 /pmc/articles/PMC10314908/ /pubmed/37393363 http://dx.doi.org/10.1038/s41598-023-37374-9 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Ruan, Qingshan
Yuan, Xitun
Liu, Hang
Ge, Shuyao
Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC
title Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC
title_full Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC
title_fullStr Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC
title_full_unstemmed Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC
title_short Study on co-seismic ionospheric disturbance of Alaska earthquake on July 29, 2021 based on GPS TEC
title_sort study on co-seismic ionospheric disturbance of alaska earthquake on july 29, 2021 based on gps tec
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10314908/
https://www.ncbi.nlm.nih.gov/pubmed/37393363
http://dx.doi.org/10.1038/s41598-023-37374-9
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