INFLUENCE OF CYCLONES ON THE ATMOSPHERIC ELECTRIC FIELD OF KAMCHATKA

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IThe effects of the influence of cyclones in Kamchatka on the vertical component of the atmospheric electric field (AEF)E_z were studied. The cyclones were recorded on the basis of electromagnetic radiation of thunderstorm discharges using a VLF-direction finder developed at  the Institute of Cosmophysical Research and Radio Wave Propagation. The maximal distance to thunderstorm sources recorded by the direction finder reaches 4 · 10^³ km. Azimuthal distributions of VLF-radiation sources and distributions of the  epicenters of cyclones determined on the basis of synoptic charts of the  Hydrometeorological Service of Kamchatka are presented. Azimuthal displacements of thunderstorm sources located in the regions adjacent  to Kamchatka are shown Monitoring of E_{z was carried out at the Paratunka observatory in Kamchatka  using the Pole-2 instrument. It is shown that the  Ez value descreases synchronously with the atmospheric pressure as the cyclone approaches the observatory. The estimates of the electric chargeof the cyclone, maximal atmospheric pressure drop in the cyclone center, and so on are presented. It is shown, that  the AEF parameter responds to the displacement of a cyclone at a distance greater than 1500 km.}

V. V. Kuznetsov, N. V. Cherneva, and G. I. Druzhin, INFLUENCE OF CYCLONES ON THE ATMOSPHERIC ELECTRIC FIELD OF KAMCHATKA // Doklady Earth Sciences, 2007, Vol. 412, No. 1, pp. 147–150