Topside Ionospheric Disturbances Detected Using Radio Occultation Measurements During the August 2017 Solar Eclipse

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Topside Ionospheric Disturbances Detected Using Radio Occultation Measurements During the August 2017 Solar Eclipse. / Perry, G. W.; Watson, C.; Howarth, A. D.; Themens, D. R.; Foss, V.; Langley, R. B.; Yau, A. W.

In: Geophysical Research Letters, Vol. 46, No. 13, 16.07.2019, p. 7069-7078.

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Perry, G. W. ; Watson, C. ; Howarth, A. D. ; Themens, D. R. ; Foss, V. ; Langley, R. B. ; Yau, A. W. / Topside Ionospheric Disturbances Detected Using Radio Occultation Measurements During the August 2017 Solar Eclipse. In: Geophysical Research Letters. 2019 ; Vol. 46, No. 13. pp. 7069-7078.

Bibtex

@article{d1ab4cbe3e684ea3844a053a4f16fdd3,
title = "Topside Ionospheric Disturbances Detected Using Radio Occultation Measurements During the August 2017 Solar Eclipse",
abstract = "The CASSIOPE (also known as Swarm-E) satellite crossed the path of totality of the August 2017 eclipse at ~640-km altitude ~10 min following the lunar umbra. Observations from CASSIOPE's Global Positioning System radio occultation receiver reveal total electron content variations of 0.2–0.3 total electron content units in the topside ionosphere—a signature of medium-scale (100-200 km) plasma disturbances in the lunar penumbra that were induced by the eclipse. The variations were only observed during the eclipse, their absence on preceding days being consistent with their very low (<10%) statistical occurrence probability. Their spectral characteristics match those of other contemporaneous measurements, and their detection is consistent with the simulated ionosphere-thermosphere response to the eclipse. To capture the small-scale size of the variations or to simulate those expected in the upcoming (July 2019) total eclipse, ionosphere-thermosphere model runs with a spatial resolution of 50 km or better would be required.",
keywords = "eclipse, GPS, gravity waves, ionospheric disturbances, TEC, TID",
author = "Perry, {G. W.} and C. Watson and Howarth, {A. D.} and Themens, {D. R.} and V. Foss and Langley, {R. B.} and Yau, {A. W.}",
year = "2019",
month = jul,
day = "16",
doi = "10.1029/2019GL083195",
language = "English",
volume = "46",
pages = "7069--7078",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "13",

}

RIS

TY - JOUR

T1 - Topside Ionospheric Disturbances Detected Using Radio Occultation Measurements During the August 2017 Solar Eclipse

AU - Perry, G. W.

AU - Watson, C.

AU - Howarth, A. D.

AU - Themens, D. R.

AU - Foss, V.

AU - Langley, R. B.

AU - Yau, A. W.

PY - 2019/7/16

Y1 - 2019/7/16

N2 - The CASSIOPE (also known as Swarm-E) satellite crossed the path of totality of the August 2017 eclipse at ~640-km altitude ~10 min following the lunar umbra. Observations from CASSIOPE's Global Positioning System radio occultation receiver reveal total electron content variations of 0.2–0.3 total electron content units in the topside ionosphere—a signature of medium-scale (100-200 km) plasma disturbances in the lunar penumbra that were induced by the eclipse. The variations were only observed during the eclipse, their absence on preceding days being consistent with their very low (<10%) statistical occurrence probability. Their spectral characteristics match those of other contemporaneous measurements, and their detection is consistent with the simulated ionosphere-thermosphere response to the eclipse. To capture the small-scale size of the variations or to simulate those expected in the upcoming (July 2019) total eclipse, ionosphere-thermosphere model runs with a spatial resolution of 50 km or better would be required.

AB - The CASSIOPE (also known as Swarm-E) satellite crossed the path of totality of the August 2017 eclipse at ~640-km altitude ~10 min following the lunar umbra. Observations from CASSIOPE's Global Positioning System radio occultation receiver reveal total electron content variations of 0.2–0.3 total electron content units in the topside ionosphere—a signature of medium-scale (100-200 km) plasma disturbances in the lunar penumbra that were induced by the eclipse. The variations were only observed during the eclipse, their absence on preceding days being consistent with their very low (<10%) statistical occurrence probability. Their spectral characteristics match those of other contemporaneous measurements, and their detection is consistent with the simulated ionosphere-thermosphere response to the eclipse. To capture the small-scale size of the variations or to simulate those expected in the upcoming (July 2019) total eclipse, ionosphere-thermosphere model runs with a spatial resolution of 50 km or better would be required.

KW - eclipse

KW - GPS

KW - gravity waves

KW - ionospheric disturbances

KW - TEC

KW - TID

UR - http://www.scopus.com/inward/record.url?scp=85068517084&partnerID=8YFLogxK

U2 - 10.1029/2019GL083195

DO - 10.1029/2019GL083195

M3 - Article

AN - SCOPUS:85068517084

VL - 46

SP - 7069

EP - 7078

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 13

ER -