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Dependence of Coherence Scales of Ionospheric Scintillation Patterns on Magnetic Activity

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Abstract

The amplitude scintillation data, recorded at 251 MHz by two spaced receivers at low latitude station Kolhapur [16.42oN, 74.2oE] are used. We have considered data of magnetically disturbed days (Ap > 20) to investigate the effect of magnetic activity on the ionospheric irregularities by observing the coherence scales of the scintillation pattern produced by the irregularities. The coherence scales are calculated using the method introduced by Bhattacharyya et al. (2003). Coherence scale lengths on magnetically disturbed days are higher than that of on quiet days. During magnetically disturbed period the coherence scales in the post midnight period are greater than that of in the pre midnight period. This suggests that magnetospheric electric field generated in storm time causes increase in coherence scales but shows large increase after midnight.

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References

  1. A. Bhattacharyya and R.G. Rastogi, Structure of Ionospheric Irregularities From Amplitude and Phase Scintillation Observations, Radio Sci., 26 (1991) 439–449.

    Article  ADS  Google Scholar 

  2. S. Basu, S. Basu, J. Aarons, J.P. Mcclure and A.D. Cousins, On the Coexistence of Kilometer and Meter-Scale Irregularities in the Night Time Equatorial F Region, J. Geophys. Res., 83 (1978) 4219–4226.

    Article  ADS  Google Scholar 

  3. B.M. Pathan and D.R.K. Rao, Seasonal and Solar Cycle Association of Zonal Drifts of Ionospheric Plasma Irregularities in the Indian Equatorial Region, Ann. Geophys., 14 (1996) 297–303.

    Article  ADS  Google Scholar 

  4. B.G. Fejer, L. Scherliess and E.R. de Paula, Effects of the Vertical Plasma Drift Velocity on the Generation and Evolution of Equatorial Spread F, J. Geophys. Res., 104 (1999) 859–869.

    Article  Google Scholar 

  5. H. Kil and R.A. Heelis, Global Distribution of Density Irregularities in the Equatorial Ionosphere, J. Geophys. Res., 103 (1998) 407–417.

    Article  ADS  Google Scholar 

  6. R.S. Lynn, K. Gardiner-Garden and A. Heitmann, The Observed Compression and Expansion of the F2 Ionosphere as a Major Component of Ionospheric Variability, Radio Sci., 51 (2016) 538–552.

    Article  ADS  Google Scholar 

  7. M. Abdullah, J.S. Mandeep, S. Zainuddin, S. Abdullah and A.F.M. Zain, Variations of foF2 Prior to Earthquakes, MAPAN-J. Metrol. Soc. India, 27(1), (2011), 13–22.

    Google Scholar 

  8. B.G. Fejer, Low Latitude Electrodynamic Plasma Drifts: A Review, J. Atmos. Terr. Phys., 53 (1991) 677–693.

    Article  ADS  Google Scholar 

  9. B.G. Fejer and L. Scherliess, Time Dependent Response of Equatorial Ionospheric Electric Fields to Magnetospheric Disturbances. Geophys. Res. Lett., 22 (1995) 851–854.

    Article  ADS  Google Scholar 

  10. Su. Basu, S. Basu, C.E. Valladares, H.C. Yeh, S.Y. Su, E. MacKenzie, P.J. Sultan, J. Aarons, F. J. Rich, P. Doherty, K.M. Groves and T.W. Bullett, Ionospheric Effects of Major Magnetic Storms During the International Space Weather Period of September and October 1999: GPS Observations, VHF/UHF Scintillations, and In Situ Density Structures at Middle and Equatorial Latitudes, J. Geophys. Res., 106 (2001) 389–413.

    Google Scholar 

  11. A. Bhattacharyya, S. Basu and K.M. Groves, C.E. Valladares and R. Sheehan, Effect of Magnetic Activity on the Dynamics of Equatorial F Region Irregularities, J. Geophys. Res., 107 (2002) 1489–1495.

    Google Scholar 

  12. J. Hanumath Sastri, N. Jyoti, V.V. Somayajulu, H. Chandra and C.V. Devasia, Ionospheric Storm of Early November 1993 in the Indian Equatorial Region, J. Geophys. Res., 105 (2000) 443–455.

    Article  Google Scholar 

  13. B. Engavale, K. Jeeva, K.U. Nair and A. Bhattacharyya, Solar Flux Dependence of Coherence Scales in Scintillation Patterns Produced by ESF Irregularities, Ann. Geophys., 23 (2005) 3261–3266.

    Article  ADS  Google Scholar 

  14. A.K. Singh, R.P. Patel and R.P. Singh, Statistical Features of Overhead Ionospheric Irregularities and Its Generation Mechanism at Low Latitude, J. Atmos. Terr. Phys., 68 (2006) 1116–1124.

    Article  ADS  Google Scholar 

  15. M.J. Keskinen, S.L. Ossakow and B.G. Fejer, Three-Dimensional Nonlinear Evolution of Equatorial Ionospheric Spread-F Bubbles, Geophys. Res. Lett., 30 (2003) 1855–1858.

    Article  ADS  Google Scholar 

  16. P.T. Patil1, R.N. Ghodpage, A. Taori, R.P. Patil, S. Gurubaran, S. Nikte, D.P. Nade, A.K. Sharma, S. Banola,V. LakshmiNarayanan and D. Siingh, The Study of Equatorial Plasma Bubble During January to April 2012 Over Kolhapur (India), Ann. Geophys., 59(2), (2016), 1–20.

    Google Scholar 

  17. A.W. Wernik, L. Alfonsi and M. Materassi, Ionospheric Irregularities, Scintillation and Its Effect on Systems, Acta Geophys. Pol., 52 (2004) 237–249.

    Google Scholar 

  18. A. Bhattacharyya, B. Kakad, S. Sripathi, K. Jeeva and K.U. Nair, Development of Intermediate Scale Structure Near the Peak of the F Region Within an Equatorial Plasma Bubble, J. Geophys. Res., 119 (2014) 3066–3076.

    Article  Google Scholar 

  19. A. Bhattacharyya, K.M. Groves, S. Basu and H. Kuenzler, C.E. Valladares and R. Sheehan, L-Band Scintillation Activity and Space-Time Structure of Low-Latitude UHF Scintillations, Radio Sci., 38 (2003) 1004–1012.

    Article  ADS  Google Scholar 

  20. B.H. Briggs, The Analysis of Spaced Sensor Records by Correlation Techniques, Middle Atmosphere Program: Handbook for MAP, Ground-Based Techniques, (ed. Vincent, R. A.), 13 (1984) 166–186.

  21. B. Kakad, K. Jeeva, K.U. Nair and A. Bhattacharyya, Magnetic Activity Linked Generation of Night Time Equatorial Spread F Irregularities, J. Geophys. Res., 112 (2007) 1–11.

    Article  Google Scholar 

  22. B. Kakad, C.K. Nayak and A. Bhattacharyya, Power Spectral Characteristics of ESF Irregularities During Magnetically Quiet and Disturbed Days, J. Atmos. Sol-Terr. Phy., 81–82 (2012) 41–49.

    Article  Google Scholar 

  23. R.P. Singh, R.P. Patel and A.K. Singh, Effect of Solar and Magnetic Activity on VHF Scintillations Near the Equatorial Anomaly Crest, Ann. Geophys., 22 (2004) 2849–2860.

    Article  ADS  Google Scholar 

  24. N. Jyoti, C.V. Devasia, R. Sridharan and D. Tiwari, Threshold Height (h0F)c for the Meridional Wind to Play a Deterministic Role in the Bottom Side Equatorial Spread F and Its Dependence on Solar Activity, Geophys. Res. Lett., 31 (2004) 1–4.

    Article  Google Scholar 

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Acknowledgements

We thank the Director, Indian Institute of Geomagnetism (IIG), Navi Mumbai, for prividing the amplitude scintillation data under scientific collaboration programme (MoU) between IIG and Shivaji University, Kolhapur. Thanks are also due to Dr. S. Sripathi (IIG) for providing data of ionosonde. Authors wish to thank the anonymous reviewers for their suggestions, which has helped to improve the paper.

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Authors and Affiliations

  1. Space and Earth Science Laboratory, Department of Physics, Shivaji University, Kolhapur, India

    G. A. Chavan, A. K. Sharma, O. B. Gurav & H. P. Gaikwad

  2. Department of Basic Sciences and Humanities, Sou Sushila Danchand Ghodawat Charitable Trust’s, Sanjay Ghodawat Group of Institutions, Atigre, Kolhapur, India

    D. P. Nade

  3. Department of Basic Sciences and Humanities, Vishveshwarya Technical Campus Patgaon-Miraj, Miraj, India

    S. S. Nikte

  4. Medium Frequency Radar, Indian Institute of Geomagnetism, Shivaji University Campus, Kolhapur, India

    R. N. Ghodpage & P. T. Patil

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  1. G. A. Chavan
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  2. A. K. Sharma
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  3. O. B. Gurav
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  4. H. P. Gaikwad
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  5. D. P. Nade
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  6. S. S. Nikte
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  7. R. N. Ghodpage
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  8. P. T. Patil
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Correspondence to A. K. Sharma.

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Chavan, G.A., Sharma, A.K., Gurav, O.B. et al. Dependence of Coherence Scales of Ionospheric Scintillation Patterns on Magnetic Activity. MAPAN 32, 59–65 (2017). https://doi.org/10.1007/s12647-016-0191-3

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  • DOI: https://doi.org/10.1007/s12647-016-0191-3

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