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  • Toledo-Redondo, S.Univ Murcia, Dept Electromagnetism & Elect, Murcia, Spain.;Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS, Toulouse, France. (författare)

Solar Wind-Magnetosphere Coupling During Radial Interplanetary Magnetic Field Conditions : Simultaneous Multi-Point Observations

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • American Geophysical Union (AGU),2021
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-461856
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-461856URI
  • https://doi.org/10.1029/2021JA029506DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • In-situ spacecraft missions are powerful assets to study processes that occur in space plasmas. One of their main limitations, however, is extrapolating such local measurements to the global scales of the system. To overcome this problem at least partially, multi-point measurements can be used. There are several multi-spacecraft missions currently operating in the Earth's magnetosphere, and the simultaneous use of the data collected by them provides new insights into the large-scale properties and evolution of magnetospheric plasma processes. In this work, we focus on studying the Earth's magnetopause (MP) using a conjunction between the Magnetospheric Multiscale and Cluster fleets, when both missions skimmed the MP for several hours at distant locations during radial interplanetary magnetic field (IMF) conditions. The observed MP positions as a function of the evolving solar wind conditions are compared to model predictions of the MP. We observe an inflation of the magnetosphere (similar to 0.7 R-E), consistent with magnetosheath pressure decrease during radial IMF conditions, which is less pronounced on the flank (<0.2 R-E). There is observational evidence of magnetic reconnection in the subsolar region for the whole encounter, and in the dusk flank for the last portion of the encounter, suggesting that reconnection was extending more than 15 R-E. However, reconnection jets were not always observed, suggesting that reconnection was patchy, intermittent or both. Shear flows reduce the reconnection rate up to similar to 30% in the dusk flank according to predictions, and the plasma beta enhancement in the magnetosheath during radial IMF favors reconnection suppression by the diamagnetic drift.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Hwang, K. J.Southwest Res Inst, San Antonio, TX USA. (författare)
  • Escoubet, C. P.European Space Technol Ctr, ESA, Noordwijk, Netherlands. (författare)
  • Lavraud, B.Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS, Toulouse, France.;Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, Pessac, France. (författare)
  • Fornieles, J.Univ Granada, Dept Electromagnetism & Matter Phys, Granada, Spain. (författare)
  • Aunai, N.Lab Phys Plasmas LPP, UMR7648, Palaiseau, France. (författare)
  • Fear, R. C.Univ Southampton, Sch Phys & Astron, Southampton, Hants, England. (författare)
  • Dargent, J.Ruhr Univ Bochum, Inst Theoret Phys, Bochum, Germany. (författare)
  • Fu, H. S.Beihang Univ, Sch Space & Environm, Beijing, Peoples R China. (författare)
  • Fuselier, S. A.Southwest Res Inst, San Antonio, TX USA.;Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA. (författare)
  • Genestreti, K. J.Southwest Res Inst, Durham, NH USA. (författare)
  • Khotyaintsev, Yuri V.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)ykh28990 (författare)
  • Li, W. Y.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China. (författare)
  • Norgren, C.Univ Bergen, Bergen, Norway. (författare)
  • Phan, T. D.Univ Calif Berkeley, SSL, Berkeley, CA 94720 USA. (författare)
  • Univ Murcia, Dept Electromagnetism & Elect, Murcia, Spain.;Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS, Toulouse, France.Southwest Res Inst, San Antonio, TX USA. (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal of Geophysical Research - Space Physics: American Geophysical Union (AGU)126:112169-93802169-9402

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