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基于SAMPEX卫星观测的南大西洋异常区高能质子动态分布特征

吕景天 张效信 林瑞淋 何飞 蒋勇

吕景天, 张效信, 林瑞淋, 何飞, 蒋勇. 基于SAMPEX卫星观测的南大西洋异常区高能质子动态分布特征[J]. 空间科学学报, 2015, 35(2): 192-202. doi: 10.11728/cjss2015.02.192
引用本文: 吕景天, 张效信, 林瑞淋, 何飞, 蒋勇. 基于SAMPEX卫星观测的南大西洋异常区高能质子动态分布特征[J]. 空间科学学报, 2015, 35(2): 192-202. doi: 10.11728/cjss2015.02.192
LÜ Jingtian, ZHANG Xiaoxin, LIN Ruilin, HE Fei, JIANG Yong. Dynamic Distribution Features of Energetic Proton in South Atlantic Anomaly Based on the Observation of SAMPEX[J]. Journal of Space Science, 2015, 35(2): 192-202. doi: 10.11728/cjss2015.02.192
Citation: LÜ Jingtian, ZHANG Xiaoxin, LIN Ruilin, HE Fei, JIANG Yong. Dynamic Distribution Features of Energetic Proton in South Atlantic Anomaly Based on the Observation of SAMPEX[J]. Journal of Space Science, 2015, 35(2): 192-202. doi: 10.11728/cjss2015.02.192

基于SAMPEX卫星观测的南大西洋异常区高能质子动态分布特征

doi: 10.11728/cjss2015.02.192
基金项目: 国家重点基础研究发展计划项目资助(2012CB957803)
详细信息
    通讯作者:

    张效信,E-mail:xxzhang@cma.gov.cn

  • 中图分类号: P352

Dynamic Distribution Features of Energetic Proton in South Atlantic Anomaly Based on the Observation of SAMPEX

  • 摘要: 利用SAMPEX卫星1992年7月至2004年6月19~27MeV高能质子数据对南大西洋异常区的分布特征进行研究, 发现南大西洋异常区高能质子分布随高度及F10.7的变化十分显著. 在540±25km高度上, 地磁较为平静时期南大西洋异常区高能质子微分通量随着F10.7的增大而减小, 同时在F10.7≥115sfu时减小趋势较为平缓. 对中等及以上磁暴进行统计分析发现, 磁暴期间南大西洋异常区高能质子微分通量和SYM-H指数的绝对值存在明显的反相关关系, 且地磁暴对南大西洋异常区高能质子微分通量存在明显的持续影响效应. 磁暴发生期间高能质子微分通量明显减少. 磁暴恢复相及其之后高能质子微分通量呈现较为显著的恢复过程.

     

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出版历程
  • 收稿日期:  2014-03-03
  • 修回日期:  2014-10-14
  • 刊出日期:  2015-03-15

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