Comparison of the electron density variations measured with instruments of the ISZF SO RAN radar complex under the conditions of different geomagnetic disturbance |
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| Authors: | K G Ratovsky B G Shpynev A G Kim A V Medvedev A P Potekhin P V Petko D S Kushnarev |
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| Institution: | (1) Institute of Solar-Terrestrial Physics, Siberian Branch, Russian Academy of Sciences (ISZF SO RAN), P.O. Box 4026, Irkutsk, 664033, Russia |
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| Abstract: | The variations in the electron density measured with the incoherent scatter radar, DPS-4 digisonde, and FMCW ionosonde are compared in this work. The main regularities in differences are explained by the effect of different-scale ionospheric irregularities. Considerable morning gradients of electron density result in that ionosondes give increased values as compared to the incoherent scatter radar data. Electron density disturbances measured with different instruments can be of correlated and uncorrelated character. Uncorrelated disturbances are explained by intense medium-scale ionospheric irregularities. Correlated disturbances are caused by large-scale irregularities. Observation of such disturbances can be used to determine the velocity and direction of a disturbance. |
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