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Near-Earth plasma s...
Near-Earth plasma sheet boundary dynamics during substorm dipolarization
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- Nakamura, Rumi (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Nagai, Tsugunobu (author)
- Tokyo Inst Technol, Tokyo, Japan.
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- Birn, Joachim (author)
- Space Sci Inst, Boulder, CO USA.
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- Sergeev, Victor A. (author)
- St Petersburg State Univ, St Petersburg, Russia.,Univ Calif Los Angeles, Los Angeles, CA USA.
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- Le Contel, Olivier (author)
- UPMC Univ Paris 06, Univ Paris Sud, CNRS, Lab Phys Plasmas,Ecole Polytech,Observ Paris, Paris, France.
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- Varsani, Ali (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Baumjohann, Wolfgang (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Nakamura, Takuma (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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Apatenkov, Sergey (author)
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- Artemyev, Anton (author)
- Southwest Res Inst, San Antonio, TX USA.,Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI USA.
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- Ergun, Robert E. (author)
- Univ Colorado, LASP, Boulder, CO 80309 USA.
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Fuselier, Stephen A. (author)
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- Gershman, Daniel J. (author)
- NASA, GSFC, Greenbelt, MD USA.
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- Giles, Barbara J. (author)
- NASA, GSFC, Greenbelt, MD USA.
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- Khotyaintsev, Yuri V. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Lindqvist, Per-Arne (author)
- KTH,Rymd- och plasmafysik,Royal Inst Technol, Stockholm, Sweden.
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- Magnes, Werner (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Mauk, Barry (author)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
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- Russell, Christopher T. (author)
- Univ Calif Los Angeles, Los Angeles, CA USA.
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- Singer, Howard J. (author)
- NOAA, Space Weather Predict Ctr, Boulder, CO USA.
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- Stawarz, Julia (author)
- Imperial Coll London, Dept Phys, London, England.
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- Strangeway, Robert J. (author)
- Univ Calif Los Angeles, Los Angeles, CA USA.
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- Anderson, Brian (author)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
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- Bromund, Ken R. (author)
- NASA, GSFC, Greenbelt, MD USA.
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- Fischer, David (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Kepko, Laurence (author)
- NASA, GSFC, Greenbelt, MD USA.
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- Le, Guan (author)
- NASA, GSFC, Greenbelt, MD USA.
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- Plaschke, Ferdinand (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria.
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- Slavin, James A. (author)
- Univ Colorado, LASP, Boulder, CO 80309 USA.
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- Cohen, Ian (author)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
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Jaynes, Allison (author)
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- Turner, Drew L. (author)
- Aerosp Corp, Space Sci Dept, POB 92957, Los Angeles, CA 90009 USA.
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Austrian Acad Sci, Space Res Inst, Graz, Austria Tokyo Inst Technol, Tokyo, Japan. (creator_code:org_t)
- 2017-09-18
- 2017
- English.
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In: Earth Planets and Space. - : Springer Berlin/Heidelberg. - 1343-8832 .- 1880-5981. ; 69
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Subject headings
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- We report on the large-scale evolution of dipolarization in the near-Earth plasma sheet during an intense (AL similar to -1000 nT) substorm on August 10, 2016, when multiple spacecraft at radial distances between 4 and 15 RE were present in the night-side magnetosphere. This global dipolarization consisted of multiple short-timescale (a couple of minutes) Bz disturbances detected by spacecraft distributed over 9 MLT, consistent with the large-scale substorm current wedge observed by ground-based magnetometers. The four spacecraft of the Magnetospheric Multiscale were located in the southern hemisphere plasma sheet and observed fast flow disturbances associated with this dipolarization. The high-time-resolution measurements from MMS enable us to detect the rapid motion of the field structures and flow disturbances separately. A distinct pattern of the flow and field disturbance near the plasma boundaries was found. We suggest that a vortex motion created around the localized flows resulted in another fieldaligned current system at the off-equatorial side of the BBF-associated R1/R2 systems, as was predicted by the MHD simulation of a localized reconnection jet. The observations by GOES and Geotail, which were located in the opposite hemisphere and local time, support this view. We demonstrate that the processes of both Earthward flow braking and of accumulated magnetic flux evolving tailward also control the dynamics in the boundary region of the near-Earth plasma sheet.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Substorm
- Dipolarization
- Plasma sheet boundary layer
- Field-aligned current
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Nakamura, Rumi
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Nagai, Tsugunobu
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Birn, Joachim
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Sergeev, Victor ...
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Le Contel, Olivi ...
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Varsani, Ali
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Baumjohann, Wolf ...
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Nakamura, Takuma
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Apatenkov, Serge ...
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Artemyev, Anton
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Ergun, Robert E.
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Fuselier, Stephe ...
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Gershman, Daniel ...
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Giles, Barbara J ...
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Khotyaintsev, Yu ...
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Lindqvist, Per-A ...
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Magnes, Werner
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Mauk, Barry
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Russell, Christo ...
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Singer, Howard J ...
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Stawarz, Julia
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Strangeway, Robe ...
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Anderson, Brian
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Bromund, Ken R.
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Fischer, David
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Kepko, Laurence
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Le, Guan
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Plaschke, Ferdin ...
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Slavin, James A.
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Cohen, Ian
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Jaynes, Allison
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Turner, Drew L.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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NATURAL SCIENCES
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Earth Planets an ...
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Royal Institute of Technology
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Uppsala University