Efficiency of the Equivalent Slab Thickness of the Ionosphere to Set Radio Wave Propagation Conditions

Maltseva Olga, Natalia Mozhaeva

2016

Abstract

Now the total electron content ТЕС is a key parameter characterizing conditions of the ionosphere. ТЕС is widely used for an estimation of positioning accuracy, definition of index of ionospheric storm activity. Data of TEC is very important for systems of satellite communication and navigation. The advantages of the TEC measurement are the systems of a large number of receivers, the possibility of continuous global monitoring of the ionosphere, the availability of data on the Internet. For many systems (HF-communication, HFDF, HFGINT) it is necessary to know the maximum density of the ionosphere NmF2 or, that is equivalent, a critical frequency foF2. To obtain NmF2, it is necessary to know the proportionality coefficient τ=TEC/NmF2, which is the equivalent slab thickness of the ionosphere. Before occurrence of navigational satellites, no special attention was given to this parameter and there were many inaccuracies in the papers devoted to τ. The possibility of the global monitoring of NmF2 with use of ТЕС, measured by navigational satellites, makes to give the more close attention to its study. In the present paper, data of more than 50 ionospheric stations and several global maps of ТЕС are used to investigate behavior of a median τ(med) of the observational equivalent slab thickness τ(obs). Comparison of τ(med) with the equivalent slab thickness τ(IRI) of the IRI model, τ(NGM) of the Neustrelitz global model and others has shown essential differences between these values. Approaches for developing a global model of τ(med) are offered. The most amazing are following results: (1) for a large amount of stations, the use of observational TEC and τ(IRI) worsens values of foF2 compared to the initial IRI model, (2) there are no fundamental quantitative differences in the use of τ(med) for all regions of the world, (3) the IRI model and maps of TEC (in the absence of GPS receivers) for the most northern Nord station (Greenland) showed surprisingly good agreement with the experimental values of foF2.

References

  1. Aitchison, G.J., Weekes, K., 1959. Some deductions of ionospheric information from the observations of emissions from satellite 1957a2-I: The theory of the analysis, J. Atm. Terr. Phys., 14(3-4), 236-243. doi:10.1016/0021-9169(59)90035-2.
  2. Bilitza, D., 2001. International Reference Ionosphere, Radio Sci., 36(2), 261-275.
  3. Bilitza, D., Altadill, D., Zhang, Y., Mertens, C., Truhlik, V., Richards, P., McKinnell, L.-A., Reinisch, B., 2014.The International Reference Ionosphere 2012 - a model of international collaboration, J. Space Weather Space Clim., 4, A07, 12p. DOI: 10.1051/swsc/2014004.
  4. Blagoveshchensky, D.V., Maltseva, O.A., Anishin, M.M., Rogov, D.D., Sergeeva, M.A., 2016. Modeling of HF propagation at high latitudes on the basis of IRI, Adv. Space Res., 57, 821-834.
  5. Breit, G., Tuve, M.A., 1926. A test for the existence of the conducting layer, Phys. Rev., 28, 554-575.
  6. Gerzen, T., Jakowski, N., Wilken, V., Hoque, M.M., 2013. Reconstruction of F2 layer peak electron density based on operational vertical total electron content maps, Ann. Geophys., 31, 1241-1249. doi:10.5194/angeo-31-1241- 2013.
  7. Gulyaeva, T.L., 2003. International standard model of the Earth's ionosphere and plasmasphere, Astron. and Astrophys. Transaction, 22, 639-643.
  8. Gulyaeva, T., Bilitza, D., 2012. Towards ISO Standard Earth Ionosphere and Plasmasphere Model, In: New Developments in the Standard Model, (R.J. Larsen ed.). NOVA, Hauppauge, New York, 1-48.
  9. Hernandez-Pajares, M., Juan, J. M., Orus, R., Garcia-Rigo, A., Feltens J., Komjathy, A., Schaer, S.C., Krankowski, A. 2009. The IGS VTEC maps: a reliable source of ionospheric information since 1998, J. Geod., 83, 263- 275.
  10. Hoque, M.M., Jakowski, N., 2011. A new global empirical NmF2 model for operational use in radio systems. Radio Sci., 46, RS6015, 1-13.
  11. Jakowski, N., Hoque M.M., Mayer C., 2011. A new global TEC model for estimating transionospheric radio wave propagation errors, J. Geod., 85(12), 965-974.
  12. Kouris, S.S., Polimeris, K.V., Cander, L.R., Ciraolo L., 2008. Solar and latitude dependence of TEC and SLAB thickness, J. Atmos. Solar-Terr. Phys., 70, 1351-1365.
  13. Maltseva, O.A., 2015. Usage of the Internet resources for research of the ionosphere and the determination of radio-wave propagation conditions. Proceedings of the Fourth International Conference on Telecommunications and Remote Sensing, Rhodes, Greece, 17-18 September, 7-17.
  14. Maltseva, O.A., Mozhaeva, N.S., 2014. Features of behavior and usage of a total electron content in the Indian region, International Journal of Engineering and Innovative Technology,4(4), October 2014, 1-9. www.ijeit.com, ISSN: 2277-3754.
  15. Maltseva, O.A., Mozhaeva, N.S., 2015. Obtaining Ionospheric Conditions according to Data of Navigation Satellites, International Journal of Antennas and Propagation. 1-16. http://dx.doi.org/10.1155/2015/804791.
  16. Maltseva, O.A., Mozhaeva, N.S., Glebova, G.M., 2011. Global maps of TEC and conditions of radio wave propagation in the Mediterranean area, PIERS Proceedings, Marrakesh, MOROCCO, March 20-23, 1?9_0422, 1-5.
  17. Maltseva, O.A., Mozhaeva, N.S., Nikitenko, T.V., 2014. Validation of the Neustrelitz Global Model according to the low latitude Adv. Space Res., 54 () 463-472.
  18. Maltseva, O.A., Mozhaeva, N.S., Nikitenko T.V., 2015. Comparative analysis of two new empirical models IRIPlas and NGM (the Neustrelitz Global Model), Adv. Space Res., 55, 2086-2098.
  19. Maltseva, O., Mozhaeva, N., Vinnik, E., 2013. Validation of two new empirical ionospheric models IRI-Plas and NGM describing conditions of radio wave propagation in space. Proceedings of Second International Conference on Telecommunications and Remote Sensing, Noordwijkerhout, The Netherlands, 11-12 July, 109-118.
  20. Muslim, B., Haralambous, H., Oikonomou, Ch., Anggarani, S., 2015. Evaluation of a global model of ionospheric slab thickness for foF2 estimation during geomagnetic storm. Ann. Geophys., 58(5), A0551. doi:10.4401/ag-6721.
  21. Sardar, N., Singh, A.K., Nagar, A., Mishra, S.D., Vijay, S.K., 2012. Study of Latitudinal variation of Ionospheric parameters - A Detailed report, J. Ind. Geophys. Union, 16(3), 113-133.
Download


Paper Citation


in Harvard Style

Olga M. and Mozhaeva N. (2016). Efficiency of the Equivalent Slab Thickness of the Ionosphere to Set Radio Wave Propagation Conditions . In Proceedings of the Fifth International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS, ISBN 978-989-758-200-4, pages 5-14. DOI: 10.5220/0006226600050014


in Bibtex Style

@conference{ictrs16,
author={Maltseva Olga and Natalia Mozhaeva},
title={Efficiency of the Equivalent Slab Thickness of the Ionosphere to Set Radio Wave Propagation Conditions},
booktitle={Proceedings of the Fifth International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,},
year={2016},
pages={5-14},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006226600050014},
isbn={978-989-758-200-4},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Fifth International Conference on Telecommunications and Remote Sensing - Volume 1: ICTRS,
TI - Efficiency of the Equivalent Slab Thickness of the Ionosphere to Set Radio Wave Propagation Conditions
SN - 978-989-758-200-4
AU - Olga M.
AU - Mozhaeva N.
PY - 2016
SP - 5
EP - 14
DO - 10.5220/0006226600050014