Corotating Disturbances of the Solar Wind in the Interplanetary Scintillation Monitoring Data of the BSA LPI Radio Telescope

By the example of two events of 2016, changes in the interplanetary scintillation level during corotating solar wind disturbances causing geomagnetic storms are analyzed. It is shown that night scintillations are attenuated before dense disturbance part arrival at the Earth, which is followed by a significant increase during the magnetic storm and a day after it. For interplanetary scintillations in the morning sector, such changes are absent: the scintillation level remains approximately constant. A comparison with the WIND satellite data shows that changes in night scintillations and the average plasma concentration near the Earth’s orbit occur qualitatively in a similar way.