Volume 36 Issue 3
May  2016
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Article Navigation >  Chinese Journal of Space Science  > 2016  >  36(3): 331-335
WANG Yabing, ZHENG Yuqing, GU Bin, DING Liuguan, LE Guiming, LÜ Jianyong. Calculation of the SEP Flux at 1 AU Orbit and Its Comparison with Multi-satellites Observations[J]. Chinese Journal of Space Science, 2016, 36(3): 331-335. doi: 10.11728/cjss2016.03.331
Citation: WANG Yabing, ZHENG Yuqing, GU Bin, DING Liuguan, LE Guiming, LÜ Jianyong. Calculation of the SEP Flux at 1 AU Orbit and Its Comparison with Multi-satellites Observations[J]. Chinese Journal of Space Science, 2016, 36(3): 331-335. doi: 10.11728/cjss2016.03.331
shu

Calculation of the SEP Flux at 1 AU Orbit and Its Comparison with Multi-satellites Observations

doi: 10.11728/cjss2016.03.331 cstr: 32142.14.cjss2016.03.331
  • 1.

    Department of Physics, Nanjing University of Information Science and Technology, Nanjing 210044

  • 2.

    Institute of Space Weather, Nanjing University of Information Science and Technology, Nanjing 210044

  • 3.

    National Center of Space Weather, China Meteorological Administration, Beijing 100039

  • Received Date: 2015-06-16
  • Rev Recd Date: 2015-12-18
  • Publish Date: 2016-05-15
    Abstract
  • The SEP (Solar Energetic Particles) flux at 1 AU orbit is an important index of space weather condition.Based on the parameterized Green Function solution of the SEP transport equation in the ecliptic plane,the flux profile of the SEP event on 28 Sept.2012 at GOES,STEREO-A and STEREO-B positions on the 1 AU orbit is calculated,and results are compared with available observations.The results show that the flux peak Imax and its occurrence time tmax of the SEP profile are well consistent with the observation of GOES and STEREO-B.However,for STEREO-A, there is an evident difference between our calculation and the observation,which may be induced by the large angle distance between the site and the SEP source and the unknown solar activities on the backside of the Sun.The parameterized SEP flux formula may be applicable for single source impulsive SEP events.

     

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