Day time whistlers observed at low latitude Varanasi (\(L = 1.078\))

Abstract

We present results of the first time observations of whistlers during day time (sunrise) on 4th January 2017 at 01 UT (\(\hbox {UT} + 5.30 = \hbox {IST}\)) at Indian low latitude ground station Varanasi (geomag. lat. \(14{^{\circ }}55^\prime \hbox {N}\), geomag. long. \(153{^{\circ }}54^\prime \hbox { E}\), L.1.078). The main goal of analysis is to study the propagation characteristic of the observed whistlers during the day time (sunrise). These whistlers were observed during the quiet geomagnetic conditions (Dst-index = –8 nT). The dispersions of the observed whistlers are found between 11.16 and \(14.78\hbox { s}^{1/2}\), which shows that the observed whistlers have propagated in the ducted mode and the whole propagation path of whistlers lies in the ionosphere. Their columnar ionospheric electron contents lie between 23.57 TECU and 39.44 TECU. The ionospheric parameters derived from whistler data at Varanasi compare well with other measurements made by other techniques.

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References

  1. Altaf M., Ahmad M. M. 2013, Int. J. Astron. Astophys., 3, 274

    Article  Google Scholar 

  2. Andrew J. K., Michael D., James D., Hamish H. 2011, Astron. Geophys., 52(2), 227

    Google Scholar 

  3. Bernard L. C. 1973, J. Atmos. Terres. Phys., 35, 871

    ADS  Article  Google Scholar 

  4. Burke C. P., Jones D. 1992, J. Atmos. Terr. Phys., 54, 243

    ADS  Article  Google Scholar 

  5. Carpenter D. L., Walter F. R., Barrington E., McEwen D. J. 1968, J. Geophys. Res., 73, 2929

    ADS  Article  Google Scholar 

  6. Chen Y. P., Ni B. B., Gu X. D., Zhao Z. Y., Yang G. B., Zhou C., Zhang Y. N. 2017, Sci. China Technol. Sci., 60(1), 166

    Article  Google Scholar 

  7. Chum J., Jrick F., Santolik O., Parrot M., Diendorfer G., Fisr J. 2006, Ann. Geophys., 24, 2921

    ADS  Article  Google Scholar 

  8. Crouchley A. 1964, Augg. J. Phys., 17, 88

    ADS  Google Scholar 

  9. Daniell G. J. 1985, J. Atmos. Terr. Phys., 48(3), 267

    ADS  Article  Google Scholar 

  10. Gokani S. A., Singh R., Rama Tulsi S., Venkatesham K., Kumar S., Selvakumaran R. 2018, Adv. Space Res., 61, 1909

    ADS  Article  Google Scholar 

  11. Helliwell R. A. 1965, Stanford University Press, Stanford

  12. Hayakawa M., Tanaka Y. 1978, Rev. Geophys. Space Phys., 16, 111

    ADS  Article  Google Scholar 

  13. Hayakawa M., Tanaka Y. 1984, The Conferences on Achievement of the IMS-26-26, June, Graz

  14. Kumar S., Anil D., Kishor A., Ramachandran V. 2007, J. Atmos. Solar-Terr. Phys., 69, 1366

    ADS  Article  Google Scholar 

  15. Kumar S., Singh A. 2009, Adv. Space Res., 43(10), 1555

    ADS  Article  Google Scholar 

  16. Kuzichev I. V. 2012, J. Geophys. Res. 117(6), 6325.A

    ADS  Google Scholar 

  17. Lichtenberger J., Ferencz C., Bodnár L., Hamar D., Steinbach P. 2008, J. Geophys. Res., 113, A12201

    ADS  Article  Google Scholar 

  18. Lichtenberger J. 2009, J. Geophy. Res., 114, 7

    Article  Google Scholar 

  19. Maeda K., Kimura I. 1956, Space Res., 3, 105

    Google Scholar 

  20. Manninen J., Kleimenova N. G., Kozyreva O. V., Bespalov P. A., Kozlovsky A. E. 2013, J. Atmos. Sol. Terr. Phys., 99, 123

    ADS  Article  Google Scholar 

  21. Manninen J., Turunen T., Kleimenova N. G., Gromova L. I., Kozlovskii A. E. 2017, Geomag. Aeronomy., 57(1), 32

    ADS  Article  Google Scholar 

  22. Menietti J. D., Gurnett D. A. 1980, Geophysical Res. Lett., 7(1), 49

    ADS  Article  Google Scholar 

  23. Park C. G. 1972, Tech. Rep. 3454-1 Radio Sci. Lab., Stanford Electr. Lab., Stanford Univ. Stanford, California

  24. Rao M., Somayajulu V. V., Dikshit S. K. 1974, J. Geomag. Geoelectr., 26, 515

    ADS  Article  Google Scholar 

  25. Rathore S. V., Kumar S., Singh A. K. 2018, Ann. Geophys., 61(1), 113

    Article  Google Scholar 

  26. Rodger C. J., Lichtenberger J., McDowell G., Thomson N. R. 2009, Radio Sci., 44, RS2004

    Article  Google Scholar 

  27. Singh R. P., Singh U. P., Singh A. K., Singh. D. P. 1998, Earth Planet Space, 50, 865

    ADS  Article  Google Scholar 

  28. Singh R., Singh A. K., Singh R. P. 2003, Pramana – J. Phys., 60(6), 1273

    ADS  Article  Google Scholar 

  29. Singh S., Patel R. P., Singh K. K., Singh A. K., Singh R. P. 2007, Planet. Space Sci., 50(10), 1218

    ADS  Article  Google Scholar 

  30. Singh R., Cohen M. B., Maurya A. K., Veenadhari B., Kumar S., Pant P., Said R. K., Inan, U. S. 2012, Geophys. Res. Lett., 39, L23102

    ADS  Article  Google Scholar 

  31. Singh A. K., Singh S. B., Singh Rajesh, Gokani Sneha, Singh Ashok. K., Singh Devendraa, Lichtenberger J. 2014, J. Atmos. Solar-Terr. Phys., 121, 221

  32. Somayajulu V. V., Tantry B. A. P. 1968, J. Geomagn. Electr., 20, 21

    ADS  Google Scholar 

  33. Smith R. L. 1960, Radio, Sci, Lab., Stanford Electron. Lab., Stanford Univ., Tech. Rept. 6, AFOSR-TN-60-861

  34. Smith R. L., Helliwell R. A., Yabroff I. W. A. 1960, J. Geophys. Res., 65(1), 20

    Google Scholar 

  35. Smith R. L., Angeram J. J. 1968, J. Geophy. Res., 73(1), 20

    ADS  Article  Google Scholar 

  36. Srivastava R. N. 1974, Planet. Space Sci., 22, 1545

    ADS  Article  Google Scholar 

  37. Srivastava P. R., Gokani S. A., Maurya A. K., Singh R., Kumar S., Veenadhari B., Selvakumaran R., Singh A. K., Lichtenberger J. 2013, Adv. Space. Res., 52, 1966

    ADS  Article  Google Scholar 

  38. Strangeways H. J. 1976, Ph.D. Thesis, University of Southampton, UK

  39. Strangeways H. J. 1982, J. Atmos. Solar-Terr. Phys., 44(10), 901

    ADS  Article  Google Scholar 

  40. Storey L. R. O. 1953, Phil. Trans. Roy. Soc. (London), 246A, 113

    ADS  Article  Google Scholar 

  41. Tanaka Y., Hayakawa M. 1985, J. G. Res. Space Phys., 90(A4), 3457

    Article  Google Scholar 

  42. Walker A. D. M. 1976, Rev. Geophys. Space Sci., 14, 629

    ADS  Article  Google Scholar 

  43. Walker A. D. M. 1978, Planet Space Sci., 26, 375

    ADS  Article  Google Scholar 

  44. Weidman C. D., Krider E. P. 1986, Radio Sci., 21, 964

    ADS  Article  Google Scholar 

  45. Yonezawa T. 1966, Space Sci. Rev., 5(3), 56

    Google Scholar 

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Acknowledgements

The first author S. B. Singh is thankful to the DST-PURSE (5050) grant for providing Research Associate. This work is partly supported by ISRO, Bangalore under ISRO-SSPS Program. The authors are thankful to Dr. J. Lichtenberger of Eötvös University, Budapest, Hungary for his help and discussions in the preparation of the manuscript.

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Correspondence to A. K. Singh.

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Singh, S.B., Rao, S.S. & Singh, A.K. Day time whistlers observed at low latitude Varanasi (\(L = 1.078\)). J Astrophys Astron 40, 49 (2019). https://doi.org/10.1007/s12036-019-9617-y

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Keywords

  • Very low frequency waves
  • whistlers
  • ionospheric/plasmaspheric parameters
  • low latitude