Volume 38 Issue 4
Jul.  2018
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BAI Shichen, SHI Quanqi, TIAN Anmin, ZHANG Shuai. Cold-dense Plasma Sheet and Its Impact on the Spatial Distributions of the Magnetotail Plasma Sheet ormalsize[J]. Journal of Space Science, 2018, 38(4): 444-451. doi: 10.11728/cjss2018.04.444
Citation: BAI Shichen, SHI Quanqi, TIAN Anmin, ZHANG Shuai. Cold-dense Plasma Sheet and Its Impact on the Spatial Distributions of the Magnetotail Plasma Sheet ormalsize[J]. Journal of Space Science, 2018, 38(4): 444-451. doi: 10.11728/cjss2018.04.444

Cold-dense Plasma Sheet and Its Impact on the Spatial Distributions of the Magnetotail Plasma Sheet ormalsize

doi: 10.11728/cjss2018.04.444
  • Received Date: 2017-06-12
  • Rev Recd Date: 2017-10-05
  • Publish Date: 2018-07-15
  • Plasma sheet plays an important role in the coupling of solar wind and Earth magnetosphere, and the Cold-Dense Plasma Sheet (CDPS) is an important evidence of solar wind entry during the geomagnetic quiet time. However, there are handful statistical analyses using in situ observations to investigate the 2D profile of ion number density, temperature of plasma sheet and the CDPS occurrence rate in the xy plane of GSM coordinate. The Geotail data from 1996 to 2016 are used to fill that blank. The 2D profile of ion density, temperature of plasma sheet and the CDPS occurrence rate are plotted. A dawn-dusk asymmetry is seen in the 2D profile of ion density and in the cold-dense plasma sheet occurrence, but not seen in the 2D profile of ion temperature. The dawn-dusk asymmetry of ion density is more clear during the geomagnetic quiet time than that during the geomagnetic active time. Furthermore, the possible affect caused by the CDPS on the 2D profile of ion number density and temperature of the plasma sheet are investigated.

     

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