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We present data continuous series of microwave observations of the middle atmosphere in December 2017 and 2018. Measurements were carried out with the help of mobile ozonemeter (observation frequency 110836.04 MHz), which was established at Polar Geophysical Institute in Apatity (67N, 33E). The parameters of the device allow to measure a spectrum of the ozone emission line for time about 15 min a precision of 2%.On the measured spectra were appreciated of ozone vertical profiles in the layer of 22 60 km which were compared to satellite data MLS/Aura and with the data of ozonesonde at station Sodankyla(67N, 27E). The microwave data on the behavior of mesospheric ozone (altitude 60 km) indicate the presence of both photochemical and dynamic components in its changes.

The precipitations of energetic electrons observed at the Spitsbergen latitude, which manifest themselves in the optical range as auroras, differ in their origin and morphology from the precipitations in other regions of the auroral zone. The electron energy determines the height of the auroral luminescence, which in the experiment can be determined from triangulation observations. In 2018, optical devices of the Polar Geophysical Institute on the Spitsbergen archipelago were supplemented with an additionalcamera. The camera is installed in the Barentsburg settlement, 4 km southern of the main optical pavilion and has a field of view of about 30 degrees. In patrol mode, the camera is directed to the zenith, which allows, together with the data of the all-sky camera, located in the main optical pavilion, to obtain information about the height of the observed structures of auroras in the vicinity of the zenith. The report contains the parameters of the optical system used for triangulation and examples of the registration of auroral structures.

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We analyzed the magnetospheric disturbances in the midnight sector during the substorm on Nov 14, 2014, starting at 18:25 UT. The data used were observed by the THD and THE satellites located in the ~ 00 MLT sector of the magnetosphere at 9-10.5 Re, as well as recording of PiB pulsations at Lovozero, the aurora at the stations Apatity and ground magnetic data. Some 20 minutes before the ground substorm onset, the beginning of the bursty bulk flow (BBF) event was observed by two satellites. The role of fast earthward flows in triggering substorms is not yet known in detail. Here we evaluate the associated changes in the cross-tail current intensity using the line-current model to simulate equivalent current perturbations during the interaction of BBFs with the near-Earth plasma.