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曲靖非相干散射雷达电离层E-F谷区电子密度日间变化特征初步分析

丁宗华 代连东 杨嵩 苗建苏 吴健

丁宗华,代连东,杨嵩,等. 曲靖非相干散射雷达电离层E-F谷区电子密度日间变化特征初步分析[J]. 电波科学学报,xxxx,xx(xx):x-xx. DOI: 10.12265/j.cjors.2021091
引用本文: 丁宗华,代连东,杨嵩,等. 曲靖非相干散射雷达电离层E-F谷区电子密度日间变化特征初步分析[J]. 电波科学学报,xxxx,xx(xx):x-xx. DOI: 10.12265/j.cjors.2021091
DING Z H, DAI L D, YANG S, et al. Preliminary analysis of daytime electron density in the ionospheric E-F valley based on the Qujing incoherent scatter radar observations[J]. Chinese journal of radio science,xxxx,xx(xx):x-xx. (in Chinese). DOI: 10.12265/j.cjors.2021091
Citation: DING Z H, DAI L D, YANG S, et al. Preliminary analysis of daytime electron density in the ionospheric E-F valley based on the Qujing incoherent scatter radar observations[J]. Chinese journal of radio science,xxxx,xx(xx):x-xx. (in Chinese). DOI: 10.12265/j.cjors.2021091

曲靖非相干散射雷达电离层E-F谷区电子密度日间变化特征初步分析

doi: 10.12265/j.cjors.2021091
基金项目: 国家自然科学基金(61871352)
详细信息
    作者简介:

    丁宗华:(1978—),男,湖北人,博士,研究员,研究方向为空间环境探测与电波传播

    代连东:(1988—),男,河北人,硕士,工程师,研究方向为电离层探测与数据分析

    杨嵩:(1992—),男,河南人,硕士,工程师,研究方向为空间物体探测

    通讯作者:

    丁宗华 E-mail:zhdingmou@163.com

  • 中图分类号: TN958

Preliminary analysis of daytime electron density in the ionospheric E-F valley based on the Qujing incoherent scatter radar observations

  • 摘要: 电离层E-F谷区是电离层探测和研究的薄弱环节之一. 文中利用曲靖非相干散射雷达日间120~200 km的电子密度观测数据,初步分析了曲靖地区电离层E-F谷区的变化特征. 发现E-F谷区结构依赖于地方时与季节,相对于正午存在对称性,同时表现为两种形态:一种在120~160 km存在明显谷区结构,谷底位于134~144 km;另一种的谷区很宽,谷底位于约130 m,在120~150 km电子密度随高度缓慢变化,160 km以上电子密度快速单调增加. 一次耀斑爆发后129 km以下电子密度迅速增加,D层电子密度突然增强,而134 km以上变化不明显,可能与X射线增强有关. 一次磁暴期间 139~158 km电子密度变化不明显,177~196 km的电子密度出现了增强现象,可能与氧原子含量增加有关.
  • 图  1  2014-03-30T9:25LT曲靖非相干散射雷达探测的回波功率和电子密度剖面

    Fig.  1  The echo power and electron density profile of Qujing incoherent scatter radar at 9:25LT on 2014-03-30T

    图  2  曲靖地区不同季节的日间电子密度剖面

    Fig.  2  The daytime electron density profiles in different seasons in Qujing

    图  3  2017-04-30曲靖地区不同地方时的电子密度剖面对比

    Fig.  3  The comparison of the daytime electron density profiles in different local time in Qujing on 2017-04-30

    图  4  2015-05-30曲靖地区不同高度电子密度变化

    Fig.  4  The variations of the electron density in different altitudes with local time in Qujing on 2015-03-30

    图  5  2014-12-17耀斑期间曲靖地区不同高度电子密度变化

    Fig.  5  The variations of the electron density in different altitudes with local time in Qujing in the solar flare event on 2014-12-17

    图  6  2014-12-15—18耀斑期间电离层fminfoE变化

    Fig.  6  The variations of the fmin and foE with local time in the solar flare event on 2014-12-15−18

    图  7  2015-04-01—21 DST指数变化

    Fig.  7  The DST variations on April 01−21, 2015

    图  8  2015-04磁暴期间不同高度电子密度变化

    Fig.  8  The variations of electron density in the different altitudes with local time in the geomagnetic storm event

    图  9  2015-04磁暴期间电离层foE,foF1foF2的变化

    Fig.  9  Temporal variations of the foE, foF1and foF2 in the geomagnetic storm event in 2015-04

    图  10  谷区参数随太阳天顶角的变化

    Fig.  10  Variations of the E-F valley depth and width with the solar zenith angle

  • [1] DENISENKO R J. On a possibility of establishment of existence of valley from ionograms[J]. Geomagnetism and aeronomy,1978,18:1045-1050.
    [2] SHI J K, WANG Z, TORKAR K, et al. Ionospheric E–F valley observed by a sounding rocket at the low-latitude station Hainan[J]. Annales geophysicae,2013,31:1459-1462. DOI: 10.5194/angeo-31-1459-2013
    [3] CHAU J L, WOODMAN R F. D and E region incoherent scatter radar density measurements over Jicamarca [J]. Journal of geophysical research: space physics, 2005, 110: A12314. DOI:10.1029/2005JA011438
    [4] MAHAJAN K K, KOHLI R, PANDEY V K, et al. Information about the E region valley from incoherent scatter measurements[J]. Advances in space research,1990,10(8):17-20. DOI: 10.1016/0273-1177(90)90179-4
    [5] MAHAJAN K K, PANDEY V K, GOEL M K, et al. Incoherent-scatter measurements of E-F valley and comparisons with theoretical and empirica model[J]. Advances in space research,1994,14:75-78.
    [6] ZHANG X J, RUAN X Q, SATO T, et al. Profiles of electron density in the lower ionosphere observed by MU radar[J]. Journal of geomagnetism and geoelectricity,1991,43(3):179-187. DOI: 10.5636/jgg.43.179
    [7] CHEN C F, WARD B D, REINISCH B W, et al. Ionosonde observation of the E-F valley and comparison with the incoherent scatter radar profiles[J]. Advances in space research,1991,11(10):89-92. DOI: 10.1016/0273-1177(91)90326-F
    [8] DING Z H, WU J, XU Z W, et al. The Qujing incoherent scatter radar: system description and preliminary measurements[J]. Earth, planets and space,2018a,70:87. DOI: 10.1186/s40623-018-0859-8
    [9] 丁宗华, 鱼浪, 代连东, 等. 曲靖非相干散射雷达功率剖面的初步观测与分析[J]. 地球物理学报,2014,57(11):3564-3569. DOI: 10.6038/cjg20141109

    DING Z H, YU L, DAI L D, et al. The preliminary measurement and analysis of the power profiles by the Qujing incoherent scatter radar[J]. Chinese journal of geophysics,2014,57(11):3564-3569. (in Chinese) DOI: 10.6038/cjg20141109
    [10] 丁宗华, 代连东, 杨嵩, 等. 曲靖非相干散射雷达功率谱的初步观测与分析[J]. 地球物理学进展,2018,33(6):2204-2210. DOI: 10.6038/pg2018BB0568

    DING Z H, DAI L D, YANG S, et al. Preliminary measurement and analysis of the power spectra by the Qujing incoherent scatter radar[J]. Progress in geophysics,2018,33(6):2204-2210. (in Chinese) DOI: 10.6038/pg2018BB0568
    [11] 丁宗华, 代连东, 杨嵩, 等. 曲靖非相干散射雷达电离层F区日间电子温度变化特征初步分析[J]. 地球物理学报,2020,63(4):1282-1293. DOI: 10.6038/cjg2020N0191

    DING Z H, DAI L D, YANG S, et al. Preliminary analysis of the ionospheric electron temperature variations of F layer in daytime using the Qujing incoherent scatter radar measurements[J]. Chinese journal of geophysics,2020,63(4):1282-1293. (in Chinese) DOI: 10.6038/cjg2020N0191
    [12] LIU L B, DING Z H, LE H, et al. New features of the enhancements in electron density at low latitudes[J]. JGR space science,2020:125. DOI: 10.1029/2019JA027539
    [13] 丁宗华, 杨嵩, 江海, 等. 曲靖非相干散射雷达空间碎片实测数据分析[J]. 空间碎片研究,2018,18(1):12-19.

    DING Z H, YANG S, JIANG H, et al. The data analysis of the space debris observation by the Qujing incoherent scatter radar[J]. Space debris research,2018,18(1):12-19. (in Chinese)
    [14] EVANS J V. Theory and practice of ionosphere study by Thomson scatter radar[J]. Proceedings of IEEE,1969,57(4):494-530.
    [15] EVANS J V. Mid-latitude ionospheric temperature on magnetically quiet and disturbed days[J]. Journal of geophysicsal research,1965,70(11):2726-2732. DOI: 10.1029/JZ070i011p02726
    [16] MIKHAILOV A V, SCHLEGEL K. Geomagnetic storm effects at F1-layer heights from incoherent scatter observations[J]. Annales geophysicae,2003,21:583-596. DOI: 10.5194/angeo-21-583-2003
    [17] BURESOVA D, LASTOVICKA J, ALTADILL D, et al. Daytime electron density at the F1-region in Europe during geomagnetic storms[J]. Annales geophysicae,2002,20(7):1007-1021. DOI: 10.5194/angeo-20-1007-2002
    [18] 苏元智, 黄信榆. 武昌电离层E-F谷区白天变化形态[J]. 地球物理学报,1987,30(6):555-559. DOI: 10.3321/j.issn:0001-5733.1987.06.001

    SU Y Z, HUANG X Y. Daytime behavior in valley region between E and F layers of the ionosphere over Wuchang, China[J]. Chinese journal of geophysics,1987,30(6):555-559. (in Chinese) DOI: 10.3321/j.issn:0001-5733.1987.06.001
    [19] TITHERIDGE J E. Model results for the daytime ionospheric E and valley regions[J]. Journal of atmospheric and solar-terrestrial physics,2003,65(1):129-137. DOI: 10.1016/S1364-6826(02)00231-6
    [20] MAEDA K. Mid-latitude electron density profile revealed by rocket experiments[J]. Journal of geomagnetism and geoelectricity,1969,21(2):557-567. DOI: 10.5636/jgg.21.557
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出版历程
  • 收稿日期:  2021-04-09
  • 网络出版日期:  2021-08-27

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