Atmospheric Meteorological Parameters and Ionospheric F2 Layer Critical Frequency (foF2) Observation for 6th December, 2016 Indonesia Earthquake (M 6.5): A Case Study

Authors

  • Suman Paul Department of Physics, Rishi Bankim Chandra Evening College, Naihati, 24 Parganas (N), 743165, India;Centre of Advanced Study in Radio Physics and Electronics, University of Calcutta, Kolkata, 700009, India

DOI:

https://doi.org/10.30564/jasr.v1i1.206

Abstract

On 6th December, 2016, an earthquake with M 6.5 occurred at the tectonic plate boundary, southwest of Sumatra, Indonesia (Latitude: 0.5897° S, Longitude: 101.3431° E). In this case, ionosphereic critical frequency of F2 layer (foF2) variations and meteorological parameters, viz., air temperature, relative humidity, atmospheric pressure and wind speed variations were investigated so as to detect any anomalies. Data are obtained from different websites freely available for researchers. In the absence of real ionosonde foF2 data, IRI 2016 model data were used. For each parameter, anomaly window were defined when values fell beyond ± 6 °C, < 70 %, ± 4 mb and ± 3.5 km h-1 from the event day value and one third of total foF2 values broke the limits of the upper and lower bounds. Certain random anomalies in temperature, relative humidity, pressure, wind speed and foF2 frequencies were observed different days prior to occurrence of the quake but each parameter showed anomalies 12 days before the occurrence. Also, geomagnetic tranquility was justified through Kp and Dst indices. This study reveals that continuous monitoring of atmospheric meteorological parameters and regular ionospheric foF2 observations might help us to predict an earthquake about a week prior to the occurrence.

Keywords:

Ionosphere, Ionosphereic foF2 anomaly, Meteorological parameter anomaly, Short-term prediction

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How to Cite

Paul, S. (2018). Atmospheric Meteorological Parameters and Ionospheric F2 Layer Critical Frequency (foF2) Observation for 6th December, 2016 Indonesia Earthquake (M 6.5): A Case Study. Journal of Atmospheric Science Research, 1(1), 6–12. https://doi.org/10.30564/jasr.v1i1.206

Issue

Vol. 1 , Iss. 1 (October 2018)

Article Type

Article

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Copyright © 2018 Author(s)

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This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

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