Estimation of Wait’s Empirical D-Region Model Parameters Based on Standard IRI Model

  • Subrata Kundu
  • Swati Chowdhury
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP, volume 53)


Wait’s 2-component ionospheric model is an appropriate tool for D-region modeling when it is investigated by Very Low Frequency (VLF) remote sensing technique. The ‘effective reflection height’ (h) and ‘sharpness parameter’ (β) are the crucial parameters (called Wait’s parameters) of this model, which are related to log-linear altitude profile of model D-region electron density (Ne). In this article, we took the standard altitude profile of D-region electron density (Ne) under ambient solar conditions from ‘International Reference Ionosphere (IRI-2012)’ model and fit it with its Wait’s log-linear counterpart using Wait’s parameters as fitting parameters. The Wait’s parameters values corresponding to best fit gives a legitimate idea. We developed an automated computation mechanism to repeat this procedure under various ionospheric conditions to obtain the seasonal and diurnal variations of those parameters for different VLF propagation paths. The initial findings of our model are presented in this article.



We would like to thank Prof. Sandip K. Chakrabarti for giving us the opportunity to work in this field. We also sincerely thank Dr. Sudipta Sasmal, Dr. Tamal Basak and Dr. Suman Chakraborty for their consistent support. We thank DST-INSPIRE for financial supports.


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Subrata Kundu
    • 1
  • Swati Chowdhury
    • 1
  1. 1.Indian Centre for Space PhysicsKolkataIndia

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