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dc.contributor.authorCoster, A. J.
dc.contributor.authorGoncharenko, Larisa
dc.contributor.authorZhang, Shun-Rong
dc.contributor.authorErickson, P. J.
dc.contributor.authorRideout, William
dc.contributor.authorVierinen, Juha
dc.date.accessioned2018-07-24T13:38:04Z
dc.date.available2018-07-24T13:38:04Z
dc.date.issued2017-11-20
dc.description.abstractOn 21 August 2017, during daytime hours, a total solar eclipse with a narrow ∼160 km wide umbral shadow occurred across the continental United States. Totality was observed from the Oregon coast at ∼9:15 local standard time (LST) (17:20 UT) to the South Carolina coast at ∼13:27 LST (18:47 UT). A dense network of Global Navigation Satellite Systems (GNSS) receivers was utilized to produce total electron content (TEC) and differential TEC. These data were analyzed for the latitudinal and longitudinal response of the TEC and for the presence of traveling ionospheric disturbances (TIDs) during eclipse passage. A significant TEC depletion, in some cases greater than 60%, was observed associated with the eclipse shadow, exceeding initial model predictions of 35%. Evidence of enhanced large‐scale TID activity was detected over the United States prior to and following the large TEC depletion observed near the time of totality. Signatures of enhanced TEC structures were observed over the Rocky Mountain chain during the main period of TEC depletion.en_US
dc.description.sponsorshipU.S. National Science Foundation grant NASA grant NASA LWS funding support MURI grant ONRen_US
dc.descriptionAn edited version of this paper was published by AGU. Copyright 2017 American Geophysical Union. Coster, A.J., Goncharenko, L., Zhang S.-R., Erickson, P.J., Rideout, W. & Vierinen, J. (2017). GNSS Observations of Ionospheric Variations During the 21 2 August 2017 Solar Eclipse. Geophysical Research Letters, 44(24), 12041-12048. https://doi.org/10.1002/2017GL075774. To view the published open abstract, go to <a href=https://doi.org/10.1002/2017GL075774 > https://doi.org/10.1002/2017GL075774</a>.en_US
dc.identifier.cristinIDFRIDAID 1514205
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.urihttps://hdl.handle.net/10037/13255
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalGeophysical Research Letters
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430en_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430en_US
dc.subjecteclipseen_US
dc.subjecttotal electron contenten_US
dc.subjecttraveling ionospheric disturbancesen_US
dc.subjectGNSS networksen_US
dc.subjectmountain wavesen_US
dc.titleGNSS Observations of Ionospheric Variations During the 21 August 2017 Solar Eclipseen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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