极地研究

极地研究 ›› 2011, Vol. 23 ›› Issue (3): 159-167.DOI: 10.3724/SP.J.1084.2011.00159

• 研究论文 •    下一篇

太阳活动低年南北极电离层F2层观测与国际参考电离层对比研究

何昉 张北辰   

  1. 国家海洋局极地科学重点实验室，中国极地研究中心
  • 收稿日期:2011-01-17 修回日期:2011-03-30 出版日期:2011-09-30 发布日期:2011-09-30
  • 通讯作者: 何昉
  • 基金资助:

    国家海洋局青年海洋科学基金;中国极地科学战略基金项目

A comparative study of the polar Ionospheric F2 Layer at cusp latitude between IRI model prediction and observations in both hemispheres in solar minimum

He Fang, Zhang Beichen   

  1. State Oceanic Administration Key Laboratory for Polar Science, Polar Research Institute of China
  • Received:2011-01-17 Revised:2011-03-30 Online:2011-09-30 Published:2011-09-30
  • Contact: He Fang
  • Supported by:

    the Youth Marine Science Foundation of SOA

PDF (PC)

1306

被引次数

8

摘要：

利用2006-2007年EISCAT Svalbard雷达（ESR）和南极中山站DPS-4测高仪的观测数据，对太阳活动低年不同季节的极区电离层F2层临界频率（f0F2）和峰值高度（hmF2）进行统计分析，研究其日变化特征，并与IRI-2007模式比较。结果表明，在太阳活动低年，夏季两站的观测结果与IRI预测符合得较好，冬季预测都与实测结果符合得较差。2者差异表明，IRI-2007模式对极区f0F2和hmF2的预测，考虑太阳光致电离的权重较大，对极隙区软电子沉降和极光粒子沉降考虑的权重较小。

关键词: 国际参考电离层

Abstract:

A long run of EISCAT Svalbard Radar and DPS-4 in Zhongshan Station, between December 2006 and December 2007, have been analyzed with respect to diurnal variability in the F2 region critical frequency（f0F2） and peak altitude（hmF2）. Comparison with the international reference ionosphere model (IRI-2007) clearly demonstrates that the observations in both stations were consistent with the IRI prediction in summer, but with great deviations in winter. It suggested that though the photoionization factor had been well considered in the model, the electron precipitation should be taken into account, especially in winter.

Key words: IRI