Daytime Zonal Drifts in the Ionospheric 150km and E Regions Estimated Using Ear Observations

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dc.contributor.ISNI0000 0000 3175 0999 (Heelis, RA)en_US
dc.contributor.ORCID0000-0001-7216-4336 (Stoneback, RA)en_US
dc.contributor.ORCID0000-0002-5543-5357 (Heelis, RA)en_US
dc.contributor.authorPavan Chaitanya, P.en_US
dc.contributor.authorPatra, A. K.en_US
dc.contributor.authorOtsuka, Y.en_US
dc.contributor.authorYokoyama, T.en_US
dc.contributor.authorYamamoto, M.en_US
dc.contributor.authorStoneback, Russell A.en_US
dc.contributor.authorHeelis, R. A.en_US
dc.contributor.utdAuthorStoneback, Russell A.en_US
dc.contributor.utdAuthorHeelis, R. A.en_US
dc.date.accessioned2018-09-24T15:28:15Z
dc.date.available2018-09-24T15:28:15Z
dc.date.created2017-08-31en_US
dc.date.issued2017-08-31en_US
dc.description.abstractMultibeam observations of the 150km echoes made using the Equatorial Atmosphere Radar (EAR), located at Kototabang, Indonesia, provide unique opportunity to study both vertical and zonal ExB plasma drifts in the equatorial ionosphere. In this paper, we focus on estimating daytime zonal drifts at the 150km (140-160km) and E (100-110km) regions using multibeam observations of 150km and E region echoes made using the EAR and study the daytime zonal drifts covering all seasons not studied before from Kototabang. Zonal drifts in the 150km and E regions are found to be westward and mostly below -80ms⁻¹ and -60ms⁻¹, respectively. While the zonal drifts in the 150km and E regions do not go hand in hand on a case-by-case basis, the seasonal mean drifts in the two height regions are found to be in good agreement with each other. Zonal drifts at the 150km region show seasonal variations with three maxima peaking around May, September, and January. The zonal drifts at the 150km region are found to be smaller than the F region drifts obtained from Coupled Ion Neutral Dynamics Investigation (CINDI) onboard Communication and Navigation Outage Forecasting System (C/NOFS) by about 25ms⁻¹ consistent with the height variations of F region zonal drifts observed by the Jicamarca radar. These results constitute the first comprehensive study of zonal drifts at the 150km and E regions from Kototabang, Indonesia, and the results are discussed in the light of current understanding on the low-latitude electrodynamics and coupling.en_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.description.departmentWilliam B. Hanson Center for Space Sciencesen_US
dc.description.sponsorshipJSPS KAKENHI Grant 15H05815; NARL. Grant Number: NARL‐ISPG.en_US
dc.identifier.bibliographicCitationPavan Chaitanya, P., A. K. Patra, Y. Otsuka, T. Yokoyama, et al. 2017. "Daytime zonal drifts in the ionospheric 150km and E regions estimated using EAR observations." Journal of Geophysical Research--Space Physics 122(8), doi:10.1002/2017JA024589en_US
dc.identifier.issn2169-9380en_US
dc.identifier.issue8en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/6105
dc.identifier.volume122en_US
dc.language.isoenen_US
dc.publisherAmer Geophysical Unionen_US
dc.relation.urihttp://dx.doi.org/10.1002/2017JA024589
dc.rights©2017 American Geophysical Union. All Rights Reserved.en_US
dc.sourceJournal of Geophysical Research--Space Physics
dc.subjectDrift wavesen_US
dc.subjectElectric fieldsen_US
dc.subjectEquatoren_US
dc.subjectIonosphereen_US
dc.subjectElectrodynamicsen_US
dc.titleDaytime Zonal Drifts in the Ionospheric 150km and E Regions Estimated Using Ear Observationsen_US
dc.type.genrearticleen_US

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Heelis, Roderick A.