Long-term Ionospheric Characteristics over Urumchi
-
摘要: 电离层环境变化对电子信息系统具有重要影响,其可能引起短波通信质量下降甚至中断,导致导航信号闪烁和误差增加等. 研究电离层环境特性对于评估空间环境对通信、雷达及导航装备的影响具有重要意义. 本文根据乌鲁木齐电波环境观测站50余年数据,研究了乌鲁木齐地区电离层F层临界频率、F层底高、Es层临界频率的日变化、季节变化和长期变化情况,同时根据HWM07高空风场模型研究了乌鲁木齐地区高空风场的昼夜和季节变化特性.Abstract: There are important effects on the electron equipments for the variations of ionosphere, such as it can induce shortwave communications quality decline indeed interrupted, navigation signal scintilla and error increase, space craft orbit change, surface charging up and proton event etc. In a word, it is important to study ionospheric characteristic and its impaction on electronic equipments. Based on Urumchi ionospheric vertical sounders and its more than fifty years data, the daily variations, seasonal changes and long-term trends of the ionosphere over Urumchi were studied. Some meaningful conclusions are given at the end of the paper.
-
Key words:
- Ionosphere /
- Ionosphere diurnal variation /
- Ionosphere seasonal variation
-
[1] Xiong Nianlu, Tang Cunchen, Li Xingjian. The Ionosphere Physics Probability[M]. Wuhan: University Press, 1997. In Chinese (熊年禄, 唐存琛, 李行健. 电离层物理概论[M]. 武汉: 武汉大学出版, 1997) [2] Zhang Yulin, Chen Xiaoqian, Yan Ye. The Influence of Space Environment on Spacecraft[M]. Beijing: China Aerospace Press[M]. 2011. In Chinese (张育林, 陈小前, 闫野. 空间环境及其对航天器的影响[M]. 北京:中国宇航出版社, 2011) [3] Liu Zhenxing. Space Physics[M]. Harbin: Harbin Institute of Technology Press, 2005. In Chinese (刘振兴. 太空物理学[M]. 哈尔滨: 哈尔滨工业大学出版社, 2005) [4] Space Studies Board. Severe Space Weather Event-Understanding Societal and Economic Impacts: A Workshop Report[R]. Washington D C: National Academies Press, 2008 [5] Gubby R, Evans J. Space environment effects and satellite design[J]. J. Atmos. Solar-Terr. Phys., 2002, 64:1723-1733 [6] Poivey C, Hopkinson G R. Displacement damage mechanism and effects[R]//Space Radiation and its Effects on EEE Components, 2009 [7] Baker D N. The occurrence of operational anomalies in spacecraft and their relationship to space weather[J]. IEEE Trans. Plas. Sci., 2000,28(6):2007-2016 [8] Ryden K A, Morris P A, Ford K A, et al. Observations of internal charging currents in medium Earth orbit[J]. IEEE Trans. Plas. Sci., 2008, 36(5):2473-2481 [9] Wang Siyu, Wang Jingsong, Yu Tao, Shan Haibin, Zhang Xiaoxin. Preliminary analysis of ionospheric scintillations over Guangzhou region of China[J]. Chin. J. Space Sci., 2010, 30(2):141-147. In Chinese (王斯宇, 王劲松, 余涛, 单海滨, 张效信. 中国广州地区电离层闪烁观测结果的初步统计分析[J]. 空间科学学报, 2010, 30(2):141-147) [10] Tian Tian, Jiao Weixin, Chen Xu, Li Long, Wan Yinghu, Wei Yali. Study on the effects of protons to spacecraft internal charging with Monte Carlo method[J]. Chin. J. Space Sci., 2011, 31(1):93-99. In Chinese (田天, 焦维新, 陈旭, 李珑, 万应虎, 魏雅利. 用蒙特卡罗方法研究质子在航天器内部充电中的作用[J]. 空间科学学报, 2011, 31(1):93-99) [11] Frederickson A R, Dennison J R. Measurement of conductivity and charge storage in insulators related to spacecraft charging[J]. IEEE Trans. Nucl. Sci., 2003, 50(6):2284-2291 [12] Shu T L. The mott transition as a cause of anomalies on spacecraft[J]. IEEE Trans. Plas. Sci., 2000, 28(6):2097-2102 [13] Zhao Shufan, Sheng Xuhui, Pan Weiyan, Zhang Xuemin. Penetration characteristics of VLF wave from atmosphere into the lower ionosphere[J]. Chin. J. Space Sci., 2011, 30(2):194-200. In Chinese (赵庶凡, 申旭辉, 潘威炎, 张学民. VLF波从大气层到低电离层的传输特性分析[J]. 空间科学学报, 2011, 31(2):194-200) [14] Zuo Xiaomin, Wan Weixing. The correlation between sporadic E layers and solar activity[J]. Chin. J. Geophys., 2002, 45(6):759-765. In Chinese (左小敏, 万卫星. 电离层突发E层与太阳活动的相关性[J]. 地球物理学报, 2002, 45(6):759-765) [15] Axford W I. The formation and vertical monment of dense ionized layers in the ionosphere due to neutral wind shears[J]. J. Geophys. Res., 1963, 68(3):769-779 [16] Axford W I, Cunnold D M. The wind-shear theory of temperate zone sporadic E[J]. Radio Sci., 1966, 1:191-198 [17] Axford W I, Cunnold D M, Gleeson L J. Magnetic field variations in temperate zone sporadic-E layers[J]. Planet. Space Sci., 1966, 14:909-919 [18] Macleod M A, Keneshea T J, Narcisi R S. Numerical modeling of a metal ion sporadic E-layer[J]. Radio Sci., 1975, 10:371-380 [19] Behnke R A, Vickrey J F. Radar evidence for Fe+ in a sporadic E-layer[J]. Radio Sci., 1975, 10:325-331 [20] Christos Haldoupis, Dora Pancheva, Terdiurnal tidelike variability in sporadic E layers[J]. J. Geophys. Res., 2006, 111, doi: 10.1029/2005JA11522 [21] Christos Haldoupis, Dora Pancheva, Mitchell N J. A study of tidal and planetary wave periodicities present in midlatitude sporadic E layers[J]. J. Geophys. Res., 2004, 109, doi: 10.1029/2003JA010253 [22] Plane J M C. A time-resolved model of the mesospheric Na layer: Constraints on the meteor input function[J]. Atmos. Chem. Phys., 2004, 4:627-638
点击查看大图
计量
- 文章访问数: 1382
- HTML全文浏览量: 89
- PDF下载量: 2048
- 被引次数: 0