Modification in Atmospheric Refractivity and GPS Based TEC as Earthquake Precursors

DOI: 10.4236/pos.2014.52006   PDF   HTML     4,260 Downloads   5,403 Views   Citations


The present paper reports the modification in GPS TEC (total electron content) and atmospheric refractivity prior to the Iran earthquake that had occurred on 16 April 2013 in Iran (28.10°N, 62.05°E). The analysis of GPS-based TEC from two GPS receivers, Surat (21.16°N, 72.78°E) and Lucknow (26.91°N, 80.95°E ) and results of atmospheric refractivity profile for radiosonde observation stations (Shiraz, Iran and Delhi, India) around the fault line are presented in this paper. It is seen that atmospheric refractivity gets modified from 8 to 6 days prior to the earthquake at Shiraz, Iran and Delhi, India. The GPS TEC showed variations a few days prior to the earthquake. We conclude that in search of precursory signatures for an earthquake, both GPS TEC and refractivity are important parameters.

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P. Karia, S. , N. Pathak, K. , S. Yadav, K. , P. Chaudhary, N. and C. Patel. Ranjan Jana, N. (2014) Modification in Atmospheric Refractivity and GPS Based TEC as Earthquake Precursors. Positioning, 5, 46-52. doi: 10.4236/pos.2014.52006.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Liu, J.Y., Chuo, Y.J., Shan, S.J., Tsai, Y.B., Pulinets, S.A. and Yu, S.B. (2004) Pre-Earthquake Ionospheric Anomalies Monitored by GPS TEC. Annals of Geophysics, 22, 1585-1593.
[2] Pulinets, S. and Boyarchuk, K. (2004) Ionospheric Precursors of Earthquake. Springer, New York.
[3] Liu, J.Y, Tsai, C.H.F. and Chen, Y.I. (2001) Variations of Ionospheric Total Electron Content during the Chi-Chi Earthquake. Geophysical Research Letters, 7, 1383-1386.
[4] Plotkin, V.V. (2001) GPS Detection of Ionospheric Perturbation before the 13 February 2001, El Salvador Earthquake. Natural Hazards and Earth System Sciences, 3, 249-253.
[5] Pulinets, S.A., Leyva, C.A., Bisiacchi-Giraldi, G. and Ciraolo, L. (2005) Total Electron Content Variations in the Ionosphere before the Colima, Mexico, Earthquake of 21 January 2003. Geofisica International, 44, 369-377.
[6] Krankowski, A., Zakharenkova, I.E. and Shagimuratov, I.I. (2006) Response of the Ionosphere to the Baltic Sea Earthquake of 21 September 2004. Acta Geophysica, 54, 90-101.
[7] Zakharenkova, E., Shagimuratov, I.I., Krankowski, A. and Lagovsky, A.F. (2007) Precursory Phenomena Observed in the Total Electron Content Measurements before Great Hokkaido Earthquake of September 25 2003. Studia Geophysica et Geodaetica, 51, 267-278.
[8] Karia, S.P. and Pathak, K.N. (2011) A Change in Refractivity of the Atmosphere and Large Variation in TEC Associated with Some Earthquakes, Observed from GPS Receiver. Advances in Space Research, 47, 867-876.
[9] Hayakawa, M. and Molchanov, O.A. (2002) Seismo-Electromagnetics: Lithosphere-Atmosphere-Ionosphere Coupling. Terrapub, Tokyo.
[10] Freund, F. (2000) Time-Resolved Study of Charge Generation and Propagation in Igneous Rocks. Journal of Goephysical Research, 105, 11001-1019.
[11] Kushida, Y. and Kushida, R. (2002) Possibility of Earthquake Forecast by Radio Observations in the VHF Band. Journal of Atmopheric Electricity, 22, 239-255.
[12] Fujiwara, H., Kamogawa, M., Ikeda, M., Liu, J.Y., Sakata, H., Chen, Y.I., Ofuruton, H., Muramatsu, S., Chuo, Y.J. and Ohtsuki, Y.H. (2004) Atmospheric Anomalies Observed during Earthquake Occurrences. Geophysical Research Letters, 31, L17110.
[13] Devia, M., Barbaraa, A.K., Depuevab, A.H., Ruzhinb, Y.Y. and Depuevb, V. (2010) Anomalous Total Electron Content (TEC) and Atmospheric Refractivity Prior to the Very Strong China Earthquake of May 2008. International Journal of Remote Sensing, 31, 3589-3599.
[14] Karia, S.P. and Pathak, K.N. (2011) GPS Based TEC Measurements for a Period August 2008-December 2009 near the Northern Crest of Indian Equatorial Ionospheric Anomaly Region. Journal of Earth System Science, 120, 851-858.
[15] Divakarla, M.G., Barnet, C.D., Goldberg, M., McMillan, L.M., Maddy, E., Wolf, W., Zhou, L. and Liu, X. (2006) Validation of Atmospheric Infrared Sounder Temperature and Water Vapor Retrievals with Matched Radiosonde Measurements and Forecasts. Journal of Geophysical Research, 111, D09S15.
[16] Tobin, D.C., Revercomb, H.E., Knutson, R.O., Lesht, B.M., Strow, L.L., Hannon, S.E., Feltz, W.F., Moy, L.A., Fetzer, E.J. and Cress, T.S. (2006) Atmospheric Radiation Measurement Site Atmospheric State Best Estimates for Atmospheric Infrared Sounder Temperature and Water Vapor Retrieval Validation. Journal of Geophysical Research, 111, Article ID: D09S14.
[17] Reale, A., Tilley, F., Ferguson, M. and Allegrino, A. (2008) NOAA Operational Sounding Products for Advanced TOVS. International Journal of Remote Sensing, 29, 4615-4651.
[18] Dolukahnov, M. (1971) Propagation of Radio Waves. MIR Publisher, Moscow, 140-167.
[19] Hall, M.P. and Bradley, P.A. (1998) Troposphere and Ionosphere, Section 13. In: Mazda, F., Ed., Telecommunications Engineer’s Reference Book, 2nd Edition, Reed Educational and Professional Publishing Ltd., Oxford.
[20] Devi, M., Barbara, A.K., Ruzhin, Y.Y. and Hayakawa, M. (2012) Over-the-Horizon Anomalous VHF Propagation and Earthquake Precursors. Surveys in Geophysics, 33, 1081-1106.
[21] Xu, T., Chen, Z., Li, C.B., Wu, J., Hu, Y.L. and Wu, Z.S. (2011) GPS Total Electron Content and Surface Latent Heat Flux Variations before the 11 March 2011 M9.0 Sendai Earthquake. Advances in Space Research, 48, 1311-1317.
[22] Singh, R.P., Bhoi, S. and Sahoo, A.K. (2001) Significant Changes in the Ocean Parameters after the Gujarat Earthquake. Current Science, 80, 1376-1377.
[23] Singh, R.P., Cervone, G., Kafatos, M., Prasad, A.K., Sahoo, A.K., Sun, D., Tang, D.L. and Yang, R. (2007) Multi-Sensor Studies of the Sumatra Earthquake and Tsunami of 26 December 2004. International Journal of Remote Sensing, 28, 2885-2896.
[24] Ouzounov, D., Pulinets, S., Romanov, A., Romanov, A., Tsybulya, K., Davidenko, D., Kafatos, M. and Taylor, P. (2011) Atmosphere-Ionosphere Response to the M9 Tohoku Earthquake Revealed by Multi-Instrument Space-Borne and Ground Observations: Preliminary Results. Earthquake Science, 24, 557-564.

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