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Investigating Influence of Meteorological Parameters on Atmospheric Electric Field Variations for Islamabad and Balakot,

This research project aims to observe and analyze the variations in the atmospheric electric field (AEF) for Islamabad and Balakot stations in Pakistan, with respect to meteorological parameters and aerosol concentrations during fair-weather days. The objective is to understand the diurnal, seasonal, and annual patterns of AEF and assess its correlation with weather conditions. The study also investigates the behavior of AEF in relation to solar and space weather phenomena, as well as potential precursors of enhanced seismic activity in the region.

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Investigating Influence of Meteorological Parameters on Atmospheric Electric Field Variations for Islamabad and Balakot,

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  1. Investigating the Influence of Meteorological Parameters on Atmospheric Electric Field (AEF) Variations for Islamabad and Balakot, Pakistan Dr. SamiaFaizGurmani Senior Scientist Centre for Earthquake Studies, NCP

  2. OBJECTIVE and PROJECTS • Observing the variation in atmospheric electric filed of these stations with respect to meteorological parameters and aerosol during fair-weather days • Data Analysis of atmospheric electric field for Islamabad, Multan, Balakot and Terbella Stations, • Diurnal, Seasonal and annual observation of AEF for all station in Pakistan • Working on Thunder days Data base for Pakistan for WMO and to get previous Archived data

  3. ATMOSPHERIC ELECTRIC FIELD A region around a charged particle or object within which a force would be exerted on other charged particles or objects.

  4. GLOBAL ATMOSPHERIC ELECTRIC CIRCUIT • The movement of charge between the Earth's surface, the atmosphere, and the ionosphere is known as the global atmospheric electrical circuit. • Ionosphere acts as a positive electrode and earth as a negative electrode in global electrical circuit. • Circuit looks simple but shows complex variations with latitude, longitude, magnetospheric & ionospheric processes, also pollution and climate change

  5. APPLICATIONS • The Diurnal curves of Fair weather will be important to asses how the properties of GAEC vary as a function of time on different scales. • To study the behavior of the GAEC in relation to solar and space weather phenomena, e.g. Atmospheric electric field variation during total solar Eclipse. • To observe the short-term anomaly for the precursors of enhanced seismic activity in the region. J. Tacza et al. / Journal of Atmospheric and Solar-Terrestrial Physics 120 (2014) J.C. Tacza et al. / Advances in Space Research 58 (2016) Harrison, R. G. (2004) The global atmospheric electrical circuit and climate. Surveys in Geophysics, 25 (5-6)

  6. ELECTRIC FIELD MILL • Electric Field Mill • Electric Field Mills are designed to determine the relative strength of the electric field. Zebra field mill mounted in Multan at rooftop • Figure . EFS 1001 Simplified Diagram

  7. RESULTS and DISCUSSION

  8. ATMOSPHERIC ELECTRIC FIELD FOR ISLAMABAD Annual Variations

  9. ATMOSPHERIC ELECTRIC FIELD FOR ISLAMABAD Islamabad curve and Carnegie curve Gurmani et. al. 2018

  10. ATMOSPHERIC ELECTRIC FIELD FOR BALAKOT Annual Variations

  11. LAND-BASED COMPARISON of ISLAMABAD and BALAKOT After: Yanive et. al. 2016 Land-based measurements of different sites all over the world including Islamabad and Balakot with respect to their local time

  12. CARNEIGE CURVE and PAKISTAN SITES After: Harrison et. al. 2013

  13. ANNUAL ELECTRIC FIELD WITH RESPECT TO MONTHS

  14. Rel. Humidity Pressure Temperature Meteorological Parameters Effect on AEF (Balakot)

  15. Meteorological Parameters Effect on AEF (ISLAMABAD) Rel. Humidity Pressure Temperature

  16. AEF variation in Jinhong Observatory, China [XieYiran et. al. 2014]

  17. PUBLISHED WORK IN 2018

  18. PUBLISHED WORK IN 2018

  19. Tahira (IIU); “Fair Weather Atmospheric Electric Field Investigation at a Subtropical Station Balakot, Pakistan” (Thesis Submitted) • Alveena (Gomal Uni.); “Annual and Seasonal Variations of Surface Electric Field for Tarbela Station, Pakistan: A Study of Plausible Influences” (Thesis under write up) • Tabinnda (Air University); “ Variation of Fair-Weather Atmospheric Electric Field During Different Meteorological Parameters  for Multan and Islamabad ”

  20. CONCLUSION • There is a strong positive correlation between the fair weather atmospheric electric field and temperature, while a strong negative correlation is seen between the fair weather atmospheric electric field and the atmospheric pressure, also the relative humidity • The seasonal variation shows that the values of atmospheric electric field in spring and winter are higher than in summer (monsoon) and autumn, which could be due to the systematic change in aerosol concentration and local variations of many factors. • The diurnal average curve of atmospheric electric field shows marked departure from the Carnegie curve, and is attributed to local effects that often mask the global signal. • Compared with other land-based stations, Islamabad clearly depicts a single morning peak and the difference of timings could be due to different latitude, climate, and meteorological parameters.

  21. THANK YOU

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