First Observation of Ionospheric Convection From the Jiamusi HF Radar During a Strong Geomagnetic Storm

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dc.contributor.authorZhang, J. J.en
dc.contributor.authorWang, W.en
dc.contributor.authorWang, C.en
dc.contributor.authorLan, A. L.en
dc.contributor.authorYan, J. Y.en
dc.contributor.authorXiang, D.en
dc.contributor.authorZhang, Q. H.en
dc.contributor.authorRuohoniemi, J. Michaelen
dc.contributor.authorKunduri, B. S. R.en
dc.contributor.authorNishitani, Nozomuen
dc.contributor.authorShi, X.en
dc.contributor.authorQiu, H. B.en
dc.contributor.departmentCenter for Space Science and Engineering Research (Space@VT)en
dc.date.accessioned2020-05-29T14:25:02Zen
dc.date.available2020-05-29T14:25:02Zen
dc.date.issued2019-12-11en
dc.description.abstractThe Super Dual Auroral Radar Network (SuperDARN) is an international low-power high-frequency (HF) radar network, which provides continuous observations of the motion of plasma in the ionosphere. Over the past 15 years, the network has expanded dramatically in the middle latitudes of the Northern Hemisphere to improve the observation capabilities of the network during periods of strong geomagnetic disturbance. However, a large coverage gap still exists in the middle latitudes. A newly deployed middle-latitude HF radar in China (the Jiamusi radar) is about to join the network. This paper presents the first observation of the ionospheric convection from the Jiamusi radar during the strong geomagnetic storm on 26 August 2018. The Jiamusi measurements are compared with the simultaneous measurements from the SuperDARN Hokkaido East radar. The features of the high-velocity westward flows including the equatorward expansion and variation tendency of the line-of-sight velocities observed by the two radars are consistent with each other. According to joint analysis with auroral images, we can confirm that the westward flows observed by the two radars are sunward return flows of the duskside convection cell in the auroral region. The impact the Jiamusi data had on the calculation of SuperDARN convection patterns is also examined. The results show that the inclusion of the Jiamusi data can increase the number of gridded line-of-sight velocity measurements by up to 24.42%, the cross-polar cap potential can be increased by up to 13.90% during the investigated period.en
dc.description.notesConstruction of the Jiamusi radar was made possible by fund provided by the National High-tech Research and Development Program of China. This work was supported by NNSFC Grants 41774155, 41731070, and 41574159 and by the Strategic Pioneer Program on Space Science, Chinese Academy of Sciences, Grant XDA15052500 and was supported in part by the Specialized Research Fund for State Key Laboratories of China. It was also supported by Key Research Program of Frontier Science, Chinese Academy of Sciences, Grant QYZDJ-SSW-JSC028. The author J. J. Zhang was also supported by the Young Elite Scientists Sponsorship Program by Chinese Association for Science and Technology. The authors acknowledge the use of SuperDARN data and SSUSI data. SuperDARN is a collection of radars funded by national scientific funding agencies of Australia, Canada, China, France, Italy, Japan, Norway, South Africa, United Kingdom, and the United States; data can be accessed via this website (http://vt.superdarn.org/tiki-index.php?page=Data+Access).The fitacf data of the Jiamusi radar from 0400 to 0800 UT on 26 August 2018 are available at Zenodo (https://doi.org/10.5281/zenodo.3526986).The SuperDARN radar software toolkit (RST) 4.3 is available at Zenodo (https://doi.org/10.5281/zenodo.3401622).The data visualization toolkit developed by the SuperDARN group of Virginia Tech can be downloaded from this site (https://github.com/vtsuperdarn/davitpy).The SSUSI auroral energy flux data are available at this site (http://ssusi.jhuapl.edu/).Our acknowledgment also goes to CDAWeb of the Goddard Space Flight Center for use of the solar wind data and SYM-H index from OMNI database.en
dc.description.sponsorshipNational High-tech Research and Development Program of ChinaNational High Technology Research and Development Program of China; NNSFCNational Natural Science Foundation of China [41774155, 41731070, 41574159]; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences [XDA15052500]; Specialized Research Fund for State Key Laboratories of China; Key Research Program of Frontier Science, Chinese Academy of Sciences [QYZDJ-SSW-JSC028]; Young Elite Scientists Sponsorship Program by Chinese Association for Science and Technologyen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1029/2019EA000911en
dc.identifier.eissn2333-5084en
dc.identifier.issue1en
dc.identifier.otherUNSP e2019EA000911en
dc.identifier.urihttp://hdl.handle.net/10919/98615en
dc.identifier.volume7en
dc.language.isoenen
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectNew HF radaren
dc.subjectFirst observationen
dc.subjectData validationen
dc.subjectData applicationen
dc.titleFirst Observation of Ionospheric Convection From the Jiamusi HF Radar During a Strong Geomagnetic Stormen
dc.title.serialEarth and Space Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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