GNSS World of China

Volume 45 Issue 3
Jun.  2020
Turn off MathJax
Article Contents
Article Navigation >  GNSS World of China  > 2020  >  45(3): 77-82
HU Yanli, XU Tong, ZHU Mengyan, DENG Zhongxin. Comparison between SAMI2  TEC and GPS TEC in East Asia sector[J]. GNSS World of China, 2020, 45(3): 77-82. doi: DOI:10.13442/j.gnss.1008-9268.2020.03.014
Citation: HU Yanli, XU Tong, ZHU Mengyan, DENG Zhongxin. Comparison between SAMI2  TEC and GPS TEC in East Asia sector[J]. GNSS World of China, 2020, 45(3): 77-82. doi: DOI:10.13442/j.gnss.1008-9268.2020.03.014
shu

Comparison between SAMI2  TEC and GPS TEC in East Asia sector

doi: DOI:10.13442/j.gnss.1008-9268.2020.03.014

  • China Research Institute of Radiowave Propagation, National Key Laboratory of Electromagnetic Environment,Qingdao 266107, China

  • Publish Date: 2020-06-15
    Abstract
  • SAMI2 (Sami is Another Model of the Ionosphere) is a theoretical ionosphere model developed by the U.S. Navy Research Lab (NRL) which has been widely used in ionospheric research. In this paper, the total electron content ( TEC ) of ionosphere from SAMI2 and GPS at different latitudes in East Asia sector with different solar activities have been selected as a comparison to estimate the accuracy of SAMI2. The results show that the SAMI2 TEC  have same diurnal, seasonal and solar activity variations with GPS TEC . SAMI2 coincides better with the observation data in morning than in the afternoon. In the seasonal distribution, SAMI2 TEC  has small deviation from the observation in winter. The correlation coefficient between SAMI2 TEC  and GPS TEC  is above 0.87 at each station. In most cases, the SAMI2 overestimate the ionosphere TEC.

     

    • FullText(HTML)
  • loading
    • References(16)
  • [1]
    袁运斌, 霍星亮, 张宝成. 近年来我国GNSS电离层延迟精度建模及修正研究进展［J］. 测绘学报, 2017, 46(10): 1364-1378.
    [2]
    季宇虹, 王让会. 全球导航定位系统GNSS的技术与应用［J］. 全球定位系统, 2010, 35(5): 69-75.
    [3]
    王建敏, 黄佳鹏, 刘梓然, 等. 自适应卡尔曼滤波的电离层TEC预测模型改进［J］. 导航定位学报, 2018, 6(2): 121-127.
    [4]
    BILITZA D, ALTADILL D, TRUHLIK V, et al. International reference ionosphere 2016: from ionospheric climate to realtime weather predictions［J］. Space weather, 2017, 15(2): 418-429. DOI: 10.1002／2016SW001593.
    [5]
    GIOVANNI D I, RADICELLA S M. An analytical model of the electron density profile in the ionosphere［J］. Advance in space research, 1990, 10(11): 27-30. DOI: 10.1016／02731177(90)90301-F.
    [6]
    MANNUCCI A J, HAGAN M E, VOURLIDAS A, et al. Scientific challenges in thermosphere-ionosphere forecasting-conclusions from the october 2014 NASA JPL community workshop［J］. Journal of space weather and space climate, 2016,6(E01):10. DOI: 10.1051／swsc／2016030.
    [7]
    ROBLE R G, RIDLEY E C. A thermosphere-ionosphere-mesosphere-electrodynamics general circulation model (TIME-GCM): equinox solar cycle minimum simulations (300-500 km)［J］. Geophysical research letters, 1994, 21(6): 417-420. DOI: 10.1029／93GL03391.
    [8]
    BAILEY G J, SELLEK R. A mathematical model of the earth’s plasmasphere and its applications in a study of He+at L=3［J］. Annales geophysicae, 1990, 8(3): 171-190. DOI: 104018／978-1-4666-7536-0.ch021.
    [9]
    NAMGALADZE A A, KORENKOV Y N, KLIMENKO V V, et al. Global model of the thermosphere-ionosphere-protonsphere system［J］. Pure and applied geophysics, 1988, 127(2): 219-254. DOI: 10.1007／BF00879812.
    [10]
    HUBA J D, JOYCE G, FEDDER J A. Sami2 is another model of the ionosphere (SAMI2): a new low-latitude ionosphere model［J］. Journal of geophysical research atmospheres, 2000, 105(A10): 23035-23053. DOI: 10.1029／2000JA000035.
    [11]
    HUBA J D, DYMOND K F, JOYCE G, et al. Comparison of O+from ARGOS LORAAS data analysis and SAMI2 model results［J］. Geophysical research letters, 2002, 29(7):1102. DOI:10.1029／2001GL 013089.
    [12]
    邓忠新, 刘瑞源, 甄卫民,等. 中国地区电离层TEC暴扰动研究［J］. 地球物理学报, 2012, 55(7): 2177-2184.
    [13]
    RISHBETH H, GARRIOTT O K. Introduction to ionospheric physics［M］. Academic press, New York and London, 1969.
    [14]
    赵海山, 杨力, 徐世依. 太阳活动高低年电离层TEC变化特性分析［J］. 导航定位学报, 2017, 5(1): 24-30.
    [15]
    RISHBETH H, JENKINS B,MOFFETT R J. The F-layer at sunrise［J］. Journal of atmospheric and terrestrial physics, 1995,13(4):367-374.DOI: 10.1007／s005850050172.
    [16]
    FANG T W, ANDERSON D, FULLER-ROWELL T, et al. Comparative studies of theoretical models in the equatorial ionosphere［M］//HCBA J，SCHVNK R，KHAZNOV G，et al. Geophysical monograph series, 2014(201): 133-144.DOI:10.1002／97811187 04417.ch12.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (375) PDF downloads(82) Cited by()
    Proportional views
    Related

    Copyright © 2009《 GNSS World of China 》 Editorial Office

    Address：84 Jianshe Dong Lu, Muye District, Xinxiang City, Henan Province, ChinaChina Pos：453000Tel：0373-3712411Fax：0373-3052232Email：qqdwxt@126.com

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return