author_facet Zong, Q.‐G.
Wilken, B.
Zong, Q.‐G.
Wilken, B.
author Zong, Q.‐G.
Wilken, B.
spellingShingle Zong, Q.‐G.
Wilken, B.
Geophysical Research Letters
Layered structure of energetic oxygen ions in the dayside magnetosheath
General Earth and Planetary Sciences
Geophysics
author_sort zong, q.‐g.
spelling Zong, Q.‐G. Wilken, B. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/1998gl900110 <jats:p>On January 10 and 11, 1997, a coronal mass ejection (CME) encountered the Earth's magnetosphere and produced a moderate geomagnetic storm (<jats:italic>D<jats:sub>st</jats:sub></jats:italic> = −84 nT). During this event, the GEOTAIL spacecraft was skimming the dayside magnetopause, and observed a number of magnetopause crossings in response to the varying solar wind dynamic pressure. Around 1200 UT on January 10, GEOTAIL was traveling in the vicinity of the magnetopause at 1500 LT. Energetic oxygen ion bursts were repeatedly observed by the HEP/LD spectrometer on board GEOTAIL. This was a period of strong southward IMF related to the magnetic cloud structure of the CME. Two of these events with clear energy dispersion effects lasted from 1050 to 1113 UT, on January 10. This can be explained by invoking a quasi‐steady layered structure of the energetic oxygen ions in the magnetosheath with the higher energy particles further away from the magnetopause than the lower energy ones. The observed energy dispersion is interpreted as a result of a crossing through this spatial layer due to the arrival of a filamentory pressure pulse in the solar wind. It is suggested that the existence of the structured oxygen layer is the result of particle leakage through the dayside magnetopause into magnetosheath.</jats:p> Layered structure of energetic oxygen ions in the dayside magnetosheath Geophysical Research Letters
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series Geophysical Research Letters
source_id 49
title Layered structure of energetic oxygen ions in the dayside magnetosheath
title_unstemmed Layered structure of energetic oxygen ions in the dayside magnetosheath
title_full Layered structure of energetic oxygen ions in the dayside magnetosheath
title_fullStr Layered structure of energetic oxygen ions in the dayside magnetosheath
title_full_unstemmed Layered structure of energetic oxygen ions in the dayside magnetosheath
title_short Layered structure of energetic oxygen ions in the dayside magnetosheath
title_sort layered structure of energetic oxygen ions in the dayside magnetosheath
topic General Earth and Planetary Sciences
Geophysics
url http://dx.doi.org/10.1029/1998gl900110
publishDate 1998
physical 4121-4124
description <jats:p>On January 10 and 11, 1997, a coronal mass ejection (CME) encountered the Earth's magnetosphere and produced a moderate geomagnetic storm (<jats:italic>D<jats:sub>st</jats:sub></jats:italic> = −84 nT). During this event, the GEOTAIL spacecraft was skimming the dayside magnetopause, and observed a number of magnetopause crossings in response to the varying solar wind dynamic pressure. Around 1200 UT on January 10, GEOTAIL was traveling in the vicinity of the magnetopause at 1500 LT. Energetic oxygen ion bursts were repeatedly observed by the HEP/LD spectrometer on board GEOTAIL. This was a period of strong southward IMF related to the magnetic cloud structure of the CME. Two of these events with clear energy dispersion effects lasted from 1050 to 1113 UT, on January 10. This can be explained by invoking a quasi‐steady layered structure of the energetic oxygen ions in the magnetosheath with the higher energy particles further away from the magnetopause than the lower energy ones. The observed energy dispersion is interpreted as a result of a crossing through this spatial layer due to the arrival of a filamentory pressure pulse in the solar wind. It is suggested that the existence of the structured oxygen layer is the result of particle leakage through the dayside magnetopause into magnetosheath.</jats:p>
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author Zong, Q.‐G., Wilken, B.
author_facet Zong, Q.‐G., Wilken, B., Zong, Q.‐G., Wilken, B.
author_sort zong, q.‐g.
container_issue 22
container_start_page 4121
container_title Geophysical Research Letters
container_volume 25
description <jats:p>On January 10 and 11, 1997, a coronal mass ejection (CME) encountered the Earth's magnetosphere and produced a moderate geomagnetic storm (<jats:italic>D<jats:sub>st</jats:sub></jats:italic> = −84 nT). During this event, the GEOTAIL spacecraft was skimming the dayside magnetopause, and observed a number of magnetopause crossings in response to the varying solar wind dynamic pressure. Around 1200 UT on January 10, GEOTAIL was traveling in the vicinity of the magnetopause at 1500 LT. Energetic oxygen ion bursts were repeatedly observed by the HEP/LD spectrometer on board GEOTAIL. This was a period of strong southward IMF related to the magnetic cloud structure of the CME. Two of these events with clear energy dispersion effects lasted from 1050 to 1113 UT, on January 10. This can be explained by invoking a quasi‐steady layered structure of the energetic oxygen ions in the magnetosheath with the higher energy particles further away from the magnetopause than the lower energy ones. The observed energy dispersion is interpreted as a result of a crossing through this spatial layer due to the arrival of a filamentory pressure pulse in the solar wind. It is suggested that the existence of the structured oxygen layer is the result of particle leakage through the dayside magnetopause into magnetosheath.</jats:p>
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imprint American Geophysical Union (AGU), 1998
imprint_str_mv American Geophysical Union (AGU), 1998
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spelling Zong, Q.‐G. Wilken, B. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/1998gl900110 <jats:p>On January 10 and 11, 1997, a coronal mass ejection (CME) encountered the Earth's magnetosphere and produced a moderate geomagnetic storm (<jats:italic>D<jats:sub>st</jats:sub></jats:italic> = −84 nT). During this event, the GEOTAIL spacecraft was skimming the dayside magnetopause, and observed a number of magnetopause crossings in response to the varying solar wind dynamic pressure. Around 1200 UT on January 10, GEOTAIL was traveling in the vicinity of the magnetopause at 1500 LT. Energetic oxygen ion bursts were repeatedly observed by the HEP/LD spectrometer on board GEOTAIL. This was a period of strong southward IMF related to the magnetic cloud structure of the CME. Two of these events with clear energy dispersion effects lasted from 1050 to 1113 UT, on January 10. This can be explained by invoking a quasi‐steady layered structure of the energetic oxygen ions in the magnetosheath with the higher energy particles further away from the magnetopause than the lower energy ones. The observed energy dispersion is interpreted as a result of a crossing through this spatial layer due to the arrival of a filamentory pressure pulse in the solar wind. It is suggested that the existence of the structured oxygen layer is the result of particle leakage through the dayside magnetopause into magnetosheath.</jats:p> Layered structure of energetic oxygen ions in the dayside magnetosheath Geophysical Research Letters
spellingShingle Zong, Q.‐G., Wilken, B., Geophysical Research Letters, Layered structure of energetic oxygen ions in the dayside magnetosheath, General Earth and Planetary Sciences, Geophysics
title Layered structure of energetic oxygen ions in the dayside magnetosheath
title_full Layered structure of energetic oxygen ions in the dayside magnetosheath
title_fullStr Layered structure of energetic oxygen ions in the dayside magnetosheath
title_full_unstemmed Layered structure of energetic oxygen ions in the dayside magnetosheath
title_short Layered structure of energetic oxygen ions in the dayside magnetosheath
title_sort layered structure of energetic oxygen ions in the dayside magnetosheath
title_unstemmed Layered structure of energetic oxygen ions in the dayside magnetosheath
topic General Earth and Planetary Sciences, Geophysics
url http://dx.doi.org/10.1029/1998gl900110