| Citation: | WU Jiayan, ZHEN Weimin, OU Ming, YU Xiao, CHEN Longjiang. A Characterization Method of Global Ionospheric Irregularities Activities Based on GNSS Data (in Chinese). Chinese Journal of Space Science, 2022, 42(1): 82-90. DOI: 10.11728/cjss2022.01.201009088
|
For the problem of how to use GNSS (Global Navigation Satellite System) data to monitor ionospheric disturbance, this paper proposes a method for characterizing global ionospheric disturbances based on GNSS data. This article uses GNSS (Global Navigation Satellite System) observations of approximately 400 ground stations to calculate the standard deviation of the rate of change of TEC (Total Electron Content)–ROTI (Rate of TEC Index, ROTI), as an ionospheric disturbance observation and projected onto a grid of latitude and longitude to form a 1-hour resolution ROTI map. ROTI maps can reflect ionospheric irregularities ranging from several kilometers to tens of kilometers. The article analyzes the results of ROTI maps when the ionosphere is calm and disturbed during March 2015. And results show that such large-scale irregularities are mainly distributed in high latitude and low latitude regions. During a magnetic storm, ROTI maps show changes in numerical values and disturbance areas. ROTI maps can represent global ionospheric disturbances to a certain extent. On this basis, the index of Global ROTI Disturbance (Global ROTI index, GROTI) is proposed and the analysis results show that GROTI in high regions has a good correlation with the geomagnetic index Kp and AE index.
| [1] |
PI X, MANNUCCI A J, LINDQWISTER U J, et al. Monitoring of global ionospheric irregularities using the worldwide GPS network[J]. Geophysical Research Letters, 1997, 24: 2283 doi: 10.1029/97GL02273
|
| [2] |
BASU S, GROVES K M, QUINN J M, et al. A comparison of TEC fluctuation and scintillations at Ascension Island[J]. Journal of Atmospheric and Solar-Terrestrial Physics, 1999, 61: 1219-1226 doi: 10.1016/S1364-6826(99)00052-8
|
| [3] |
WEI W, LI W, SONG S, et al. Study on the Calculation Strategies of Ionospheric Scintillation Index ROTI from GPS [C]//IGARSS 2019-2019 IEEE International Geoscience and Remote Sensing Symposium. Yokohama: IGARSS, 2019: 9894-9897
|
| [4] |
CHERNIAK I, KRANKOWSKI A, ZAKHARENKOVA I. ROTI maps: a new IGS ionospheric product characterizing the ionospheric irregularities occurrence[J]. GPS Solutions, 2018, 22: 69 doi: 10.1007/s10291-018-0730-1
|
| [5] |
CHERNIAK I, KRANKOWSKI A, ZAKHARENKOVA I. Observation of the ionospheric irregularities over the Northern Hemisphere: methodology and service[J]. Radio Science, 2014, 49(8): 653-662 doi: 10.1002/2014RS005433
|
| [6] |
徐继生, 朱劼, 李莉, 等. 武汉与桂林L-波段电波闪烁与TEC起伏特征比较[J]. 电波科学学报, 2007(2): 181-186 doi: 10.3969/j.issn.1005-0388.2007.02.002
XU Jisheng, ZHU Jie, LI Li, et al. Comparison of L-band radio wave scintillations and TEC fluctuations from observation of Wuhan and Guilin[J]. Chinese Journal of Radio Science, 2007(2): 181-186 doi: 10.3969/j.issn.1005-0388.2007.02.002
|
| [7] |
LIU Y, RADICELLA S. On the correlation between ROTI and S4[J]. Annales Geophysicae Discussions, 2019: 1-14
|
| [8] |
DENG K, MA Y, LIU M, et al. Observations of TEC depletion, periodic structure of TEC, ROTI and scintillation associated with ESF irregularities over South China[J]. Chinese Journal of Space Science, 2020, 40(3): 331-340
|
| [9] |
尹萍, 王慧美, 潘丽静, 等. 磁暴期间南极South Pole站和McMurdo站电离层闪烁与GPS TEC时空变化相关性研究[J]. 极地研究, 2016, 28(4): 514-522
YIN Ping, WANG Huimei, PAN Lijing, et al. Correlation between ionospheric scintillations and GPS TEC spatiotemporal variations at the South Pole and McMurdo stations during a magnetic storm[J]. Chinese Journal of Polar Research, 2016, 28(4): 514-522
|
| [10] |
XU F. An Investigation of optimal machine learning methods for the prediction of ROTI[J]. Journal of Geodesy and Geoinformation Science, 2020, 3(2): 1-15 doi: 10.11947/j.JGGS.2020.0201
|
| [11] |
邵冷冷, 宋淑丽. ROTI计算策略的初步分析比较[J]. 天文学报, 2017, 58(6): 90-102
SHAO Lengleng, SONG Shuli. The preliminary comparative analysis of ROTI calculation[J]. Acta Astronomica Sinica, 2017, 58(6): 90-102
|
| [12] |
何海波. 高精度GPS动态测量及质量控制[D]. 河南: 中国人民解放军信息工程大学, 2002
HE Haibo. Precise Kinematic GPS Surveying and Quality Control[D]. Henan: Information Engineering University, 2002
|
| [13] |
孟维晓, 韩帅, 迟永钢. 卫星定位导航原理[M]. 哈尔滨: 哈尔滨工业大学出版社, 2013
MENG Weixiao, HAN Shuai, CHI Yonggang. Principles of Satellite Navigation and Positioning[M]. Harbin: Harbin Institute of Technology Press, 2013
|
| [14] |
李国主. 中国中低纬电离层闪烁监测、分析与应用研究[D]. 北京: 中国科学院研究生院(武汉物理与数学研究所), 2007
LI Guozhu. Studies on Monitoring, Analysis and Application of Mid- and Low-Latitude Ionospheric Scintillation in China[D]. Beijing: The University of Chinese Academy of Sciences(Wuhan Institute of Physics and Mathematics), 2007
|
| [15] |
PI X, IIJIMA B A, LU W. Effects of ionospheric scintillation on GNSS-Based positioning[J]. Journal of The Institute of Navigation, 2017, 64: 3-22 doi: 10.1002/navi.182
|
| [16] |
AFRAIMOVICH E L, ASTAFYEVA E I, OINATS A V, et al. Global electron content: a new conception to track solar activity[J]. Annales Geophysicae, 2008, 26(2): 763769
|
Figures(9) / Tables(1)
Journal Introduction
ISSN 0254-6124 CN 11-1783/V
Copyright © Editorial Office of Chinese Journal of Space Science. 京ICP备08100722号
Supported by: Beijing Renhe Information Technology Co., Ltd.
DownLoad:
