Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet
Poupinet et al. [J. Geophys. Res. 89 (1984) 5719] presented a new methodology for testing whether the PKP travel times observed at College, Alaska station from South Sandwich Islands earthquakes indicate inner core rotation. They applied the method to seven events and concluded that there is no evid...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.210.8225 2023-05-15T18:23:34+02:00 Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet Annie Souriau Olivier Coutant Xiaodong Song The Pennsylvania State University CiteSeerX Archives 2000 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.210.8225 http://www.geology.illinois.edu/people/xsong/Sites/papers/song01_pepi.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.210.8225 http://www.geology.illinois.edu/people/xsong/Sites/papers/song01_pepi.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.geology.illinois.edu/people/xsong/Sites/papers/song01_pepi.pdf PKP Teleseismic doublets Inner core rotation text 2000 ftciteseerx 2016-01-07T17:51:02Z Poupinet et al. [J. Geophys. Res. 89 (1984) 5719] presented a new methodology for testing whether the PKP travel times observed at College, Alaska station from South Sandwich Islands earthquakes indicate inner core rotation. They applied the method to seven events and concluded that there is no evidence for PKP(DF) times increasing systematically with event dates, and therefore no reason to postulate that the inner core rotates at a different rate than the mantle. In a reanalysis of the same seven events, I find that their results are systematically biased by the choice of radial Earth models and by incorrectly assuming that one of the phases had reversed polarity. I also question their choice of events, but upon correcting for these biases, conclude that these seven events are consistent with the previous model of inner core rotation. © 2001 Elsevier Science B.V. All rights reserved. Text South Sandwich Islands Alaska Unknown Doublets ENVELOPE(98.667,98.667,-66.417,-66.417) Sandwich Islands South Sandwich Islands |
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PKP Teleseismic doublets Inner core rotation |
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PKP Teleseismic doublets Inner core rotation Annie Souriau Olivier Coutant Xiaodong Song Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet |
topic_facet |
PKP Teleseismic doublets Inner core rotation |
description |
Poupinet et al. [J. Geophys. Res. 89 (1984) 5719] presented a new methodology for testing whether the PKP travel times observed at College, Alaska station from South Sandwich Islands earthquakes indicate inner core rotation. They applied the method to seven events and concluded that there is no evidence for PKP(DF) times increasing systematically with event dates, and therefore no reason to postulate that the inner core rotates at a different rate than the mantle. In a reanalysis of the same seven events, I find that their results are systematically biased by the choice of radial Earth models and by incorrectly assuming that one of the phases had reversed polarity. I also question their choice of events, but upon correcting for these biases, conclude that these seven events are consistent with the previous model of inner core rotation. © 2001 Elsevier Science B.V. All rights reserved. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Annie Souriau Olivier Coutant Xiaodong Song |
author_facet |
Annie Souriau Olivier Coutant Xiaodong Song |
author_sort |
Annie Souriau |
title |
Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet |
title_short |
Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet |
title_full |
Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet |
title_fullStr |
Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet |
title_full_unstemmed |
Physics of the Earth and Planetary Interiors 124 (2001) 269–273 Comment on “The existence of an inner core super-rotation questioned by teleseismic doublets ” by Georges Poupinet |
title_sort |
physics of the earth and planetary interiors 124 (2001) 269–273 comment on “the existence of an inner core super-rotation questioned by teleseismic doublets ” by georges poupinet |
publishDate |
2000 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.210.8225 http://www.geology.illinois.edu/people/xsong/Sites/papers/song01_pepi.pdf |
long_lat |
ENVELOPE(98.667,98.667,-66.417,-66.417) |
geographic |
Doublets Sandwich Islands South Sandwich Islands |
geographic_facet |
Doublets Sandwich Islands South Sandwich Islands |
genre |
South Sandwich Islands Alaska |
genre_facet |
South Sandwich Islands Alaska |
op_source |
http://www.geology.illinois.edu/people/xsong/Sites/papers/song01_pepi.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.210.8225 http://www.geology.illinois.edu/people/xsong/Sites/papers/song01_pepi.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766203585808302080 |