Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis
Two-dimensional principal component analysis (2DPCA) and principal component analysis (PCA) are used to examine the ionospheric total electron content (TEC) data during the time period from 00: 00 on August 21 to 12: 45 on August 31 (UT), which are 10 days before the M = 7.6 Philippines earthquake a...
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ftchengkunguniv:oai:ir.lib.ncku.edu.tw:987654321/147194 2023-05-15T16:57:01+02:00 Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis Lin, Jyh-Woei Department of Earth sciences 2013 https://doi.org/10.1155/2013/271513 http://ir.lib.ncku.edu.tw/handle/987654321/147194 http://ir.lib.ncku.edu.tw/bitstream/987654321/147194/-1/index.html Eng en_US eng Hindawi Publishing Corporation SCIENTIFIC WORLD JOURNAL article 2013 ftchengkunguniv https://doi.org/10.1155/2013/271513 2016-05-22T08:17:37Z Two-dimensional principal component analysis (2DPCA) and principal component analysis (PCA) are used to examine the ionospheric total electron content (TEC) data during the time period from 00: 00 on August 21 to 12: 45 on August 31 (UT), which are 10 days before the M = 7.6 Philippines earthquake at 12:47:34 on August 31, 2012 (UT) with the depth at 34.9 km. From the results by using 2DPCA, a TEC precursor of Philippines earthquake is found during the time period from 4: 25 to 4: 40 on August 28, 2012 (UT) with the duration time of at least 15 minutes. Another earthquake-related TEC anomaly is detectable for the time period from 04: 35 to 04: 40 on August 27, 2012 (UT) with the duration time of at least 5 minutes during the Puerto earthquake at 04: 37: 20 on August 27, 2012 (UT) (M-w= 7.3) with the depth at 20.3 km. The precursor of the Puerto earthquake is not detectable. TEC anomaly is not to be found related to the Jan Mayen Island earthquake (M-w = 6.8) at 13: 43: 24 on August 30, 2012 (UT). These earthquake-related TEC anomalies are detectable by using 2DPCA rather than PCA. They are localized nearby the epicenters of the Philippines and Puerto earthquakes. Article in Journal/Newspaper Jan Mayen Jan Mayen Island National Cheng Kung University: NCKU Institutional Repository Jan Mayen The Scientific World Journal 2013 1 8 |
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Open Polar |
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National Cheng Kung University: NCKU Institutional Repository |
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ftchengkunguniv |
language |
English |
description |
Two-dimensional principal component analysis (2DPCA) and principal component analysis (PCA) are used to examine the ionospheric total electron content (TEC) data during the time period from 00: 00 on August 21 to 12: 45 on August 31 (UT), which are 10 days before the M = 7.6 Philippines earthquake at 12:47:34 on August 31, 2012 (UT) with the depth at 34.9 km. From the results by using 2DPCA, a TEC precursor of Philippines earthquake is found during the time period from 4: 25 to 4: 40 on August 28, 2012 (UT) with the duration time of at least 15 minutes. Another earthquake-related TEC anomaly is detectable for the time period from 04: 35 to 04: 40 on August 27, 2012 (UT) with the duration time of at least 5 minutes during the Puerto earthquake at 04: 37: 20 on August 27, 2012 (UT) (M-w= 7.3) with the depth at 20.3 km. The precursor of the Puerto earthquake is not detectable. TEC anomaly is not to be found related to the Jan Mayen Island earthquake (M-w = 6.8) at 13: 43: 24 on August 30, 2012 (UT). These earthquake-related TEC anomalies are detectable by using 2DPCA rather than PCA. They are localized nearby the epicenters of the Philippines and Puerto earthquakes. |
author2 |
Department of Earth sciences |
format |
Article in Journal/Newspaper |
author |
Lin, Jyh-Woei |
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Lin, Jyh-Woei Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis |
author_facet |
Lin, Jyh-Woei |
author_sort |
Lin, Jyh-Woei |
title |
Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis |
title_short |
Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis |
title_full |
Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis |
title_fullStr |
Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis |
title_full_unstemmed |
Ionospheric Anomalies Related to the (M=7.3), August 27, 2012, Puerto Earthquake, (M=6.8), August 30, 2012 Jan Mayen Island Earthquake, and (M=7.6), August 31, 2012, Philippines Earthquake: Two-Dimensional Principal Component Analysis |
title_sort |
ionospheric anomalies related to the (m=7.3), august 27, 2012, puerto earthquake, (m=6.8), august 30, 2012 jan mayen island earthquake, and (m=7.6), august 31, 2012, philippines earthquake: two-dimensional principal component analysis |
publisher |
Hindawi Publishing Corporation |
publishDate |
2013 |
url |
https://doi.org/10.1155/2013/271513 http://ir.lib.ncku.edu.tw/handle/987654321/147194 http://ir.lib.ncku.edu.tw/bitstream/987654321/147194/-1/index.html |
geographic |
Jan Mayen |
geographic_facet |
Jan Mayen |
genre |
Jan Mayen Jan Mayen Island |
genre_facet |
Jan Mayen Jan Mayen Island |
op_relation |
SCIENTIFIC WORLD JOURNAL |
op_doi |
https://doi.org/10.1155/2013/271513 |
container_title |
The Scientific World Journal |
container_volume |
2013 |
container_start_page |
1 |
op_container_end_page |
8 |
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1766048284800974848 |