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  • Hwang, K. -J (author)

Sequential Observations of Flux Transfer Events, Poleward-Moving Auroral Forms, and Polar Cap Patches

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • AMER GEOPHYSICAL UNION,2020
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-420241
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-420241URI
  • https://doi.org/10.1029/2019JA027674DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • We report the observation of solar wind-magnetosphere-ionosphere interactions using a series of flux transfer events (FTEs) observed by Magnetospheric MultiScale (MMS) mission located near the dayside magnetopause on 18 December 2017. The FTEs were observed to propagate duskward and either southward or slightly northward, as predicted under duskward and southward interplanetary magnetic field (IMF). The Cooling model also predicted a significant dawnward propagation of northward-moving FTEs. Near the MMS footprint, a series of poleward-moving auroral forms (PMAFs) occurred almost simultaneously with those FTEs. They propagated poleward and westward, consistent with the modeled FTE propagation. The intervals between FTEs, relatively consistent with those between PMAFs, strongly suggest a one-to-one correspondence between the dayside transients and ionospheric responses. The FTEs embedded in continuous reconnection observed by MMS and corresponding PMAFs individually occurred during persistent auroral activity recorded by an all-sky imager strongly indicate that those FTEs/PMAFs resulted from the temporal modulation of the reconnection rate during continuous reconnection. With the decay of the PMAFs associated with the FTEs, patch-like plasma density enhancements were detected to form and propagate poleward and then dawnward. Propagation to the dawn was also suggested by the Super Dual Auroral Radar Network (SuperDARN) convection and Global Positioning System (GPS) total electron content data. We relate the temporal variation of the driving solar-wind and magnetospheric mechanism to that of the high-latitude and polar ionospheric responses and estimate the response time.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Nishimura, Y.Boston Univ, Elect & Comp Engn, Boston, MA 02215 USA.;Boston Univ, Ctr Space Phys, Boston, MA 02215 USA. (author)
  • Coster, A. J.MIT, Haystack Observ, Boston, MA USA. (author)
  • Gillies, R. G.Univ Calgary, Phys & Astron, Calgary, AB, Canada. (author)
  • Fear, R. C.Univ Southampton, Sch Phys & Astron, Southampton, Hants, England. (author)
  • Fuselier, S. A.Southwest Res Inst, San Antonio, TX 78238 USA. (author)
  • Petrinec, S. M.Lockheed Martin Adv Technol Ctr, Palo Alto, CA USA. (author)
  • Burch, J. L.Southwest Res Inst, San Antonio, TX 78238 USA. (author)
  • Dokgo, K.Southwest Res Inst, San Antonio, TX 78238 USA. (author)
  • Sibeck, D. G.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. (author)
  • Giles, B. L.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. (author)
  • Russell, C. T.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA. (author)
  • Strangeway, R. J.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA. (author)
  • Gershman, D. J.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA. (author)
  • Pollock, C. J.Denali Sci LLC, Fairbanks, AK USA. (author)
  • Khotyaintsev, Yuri V.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)ykh28990 (author)
  • Torbert, R. B.Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. (author)
  • Ergun, R. E.Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA. (author)
  • Moen, J. I.Univ Oslo, Dept Phys, Oslo, Norway. (author)
  • Clausen, L. B.Univ Oslo, Dept Phys, Oslo, Norway. (author)
  • Boston Univ, Elect & Comp Engn, Boston, MA 02215 USA.;Boston Univ, Ctr Space Phys, Boston, MA 02215 USA.MIT, Haystack Observ, Boston, MA USA. (creator_code:org_t)

Related titles

  • In:Journal of Geophysical Research - Space Physics: AMER GEOPHYSICAL UNION125:62169-93802169-9402

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