The 2017 August 21 American total solar eclipse through the eyes of GPS
SUMMARY We explored spatio-temporal variation in total electron contents (TEC) in the ionosphere caused by the recent 2017 August 21 total solar eclipse, which was observed over the United States of America. The path of the total solar eclipse passes through the continental parts of the United State...
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Online Access: | http://dx.doi.org/10.1093/gji/ggy149 http://academic.oup.com/gji/article-pdf/214/1/651/33389211/ggy149.pdf |
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croxfordunivpr:10.1093/gji/ggy149 2024-10-06T13:43:02+00:00 The 2017 August 21 American total solar eclipse through the eyes of GPS Kundu, Bhaskar Panda, Dibyashakti Gahalaut, Vineet K Catherine, J K 2018 http://dx.doi.org/10.1093/gji/ggy149 http://academic.oup.com/gji/article-pdf/214/1/651/33389211/ggy149.pdf en eng Oxford University Press (OUP) http://academic.oup.com/journals/pages/about_us/legal/notices Geophysical Journal International volume 214, issue 1, page 651-655 ISSN 0956-540X 1365-246X journal-article 2018 croxfordunivpr https://doi.org/10.1093/gji/ggy149 2024-09-10T04:11:43Z SUMMARY We explored spatio-temporal variation in total electron contents (TEC) in the ionosphere caused by the recent 2017 August 21 total solar eclipse, which was observed over the United States of America. The path of the total solar eclipse passes through the continental parts of the United States of America, starting in the northwestern state of Oregon and ending in the southeastern state of South Carolina, approximately covering 4000 km length. Across this length, EarthScope Plate Boundary Observatory (PBO) has been operating a dense Global Navigation Satellite Systems (GNSS) networks. During the course of passage of the solar eclipse, the sudden decline in solar radiation by temporarily obscuration by the Moon caused a drop of ∼6–9 × 1016 electrons m2 in the ionosphere with time-delay at the cGPS sites. The significant drop in TEC at cGPS sites captured the average migration velocity of shadow along the eclipse path (0.74 km s−1), from which we estimated the Moon's orbital velocity (∼1 km s−1). Further, this event also caused some marginal increase in TEC during the eclipse in the Earth's ionosphere in the magnetically conjugate region at the tip of South America and Antarctica, consistent with the model predictions of SAMI3 by Naval Research Laboratory. Article in Journal/Newspaper Antarc* Antarctica Oxford University Press Geophysical Journal International 214 1 651 655 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
SUMMARY We explored spatio-temporal variation in total electron contents (TEC) in the ionosphere caused by the recent 2017 August 21 total solar eclipse, which was observed over the United States of America. The path of the total solar eclipse passes through the continental parts of the United States of America, starting in the northwestern state of Oregon and ending in the southeastern state of South Carolina, approximately covering 4000 km length. Across this length, EarthScope Plate Boundary Observatory (PBO) has been operating a dense Global Navigation Satellite Systems (GNSS) networks. During the course of passage of the solar eclipse, the sudden decline in solar radiation by temporarily obscuration by the Moon caused a drop of ∼6–9 × 1016 electrons m2 in the ionosphere with time-delay at the cGPS sites. The significant drop in TEC at cGPS sites captured the average migration velocity of shadow along the eclipse path (0.74 km s−1), from which we estimated the Moon's orbital velocity (∼1 km s−1). Further, this event also caused some marginal increase in TEC during the eclipse in the Earth's ionosphere in the magnetically conjugate region at the tip of South America and Antarctica, consistent with the model predictions of SAMI3 by Naval Research Laboratory. |
format |
Article in Journal/Newspaper |
author |
Kundu, Bhaskar Panda, Dibyashakti Gahalaut, Vineet K Catherine, J K |
spellingShingle |
Kundu, Bhaskar Panda, Dibyashakti Gahalaut, Vineet K Catherine, J K The 2017 August 21 American total solar eclipse through the eyes of GPS |
author_facet |
Kundu, Bhaskar Panda, Dibyashakti Gahalaut, Vineet K Catherine, J K |
author_sort |
Kundu, Bhaskar |
title |
The 2017 August 21 American total solar eclipse through the eyes of GPS |
title_short |
The 2017 August 21 American total solar eclipse through the eyes of GPS |
title_full |
The 2017 August 21 American total solar eclipse through the eyes of GPS |
title_fullStr |
The 2017 August 21 American total solar eclipse through the eyes of GPS |
title_full_unstemmed |
The 2017 August 21 American total solar eclipse through the eyes of GPS |
title_sort |
2017 august 21 american total solar eclipse through the eyes of gps |
publisher |
Oxford University Press (OUP) |
publishDate |
2018 |
url |
http://dx.doi.org/10.1093/gji/ggy149 http://academic.oup.com/gji/article-pdf/214/1/651/33389211/ggy149.pdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Geophysical Journal International volume 214, issue 1, page 651-655 ISSN 0956-540X 1365-246X |
op_rights |
http://academic.oup.com/journals/pages/about_us/legal/notices |
op_doi |
https://doi.org/10.1093/gji/ggy149 |
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Geophysical Journal International |
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214 |
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1 |
container_start_page |
651 |
op_container_end_page |
655 |
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1812178501737906176 |