ИСТИНА

Radiation of the Earth's atmosphere, including the near UV range (300–400 nm), is an important manifestation of various processes occurring in the atmosphere. These are processes of both an internal nature, such as thunderstorm phenomena (lightning, transient luminous events, terrestrial gamma-ray bursts), and the result of an external impact on the Earth’s atmosphere: penetration of energetic ionizing radiation, cosmic rays in a wide range of energies, the passage of meteors, etc. In auroral zone optical emission is caused by energetic particles precipitation from magnetosphere. Measurements of the spatiotemporal structure of the near-UV emission make it possible to study physical mechanisms of various processes in the Earth’s atmosphere and sources of their origin. Thus an imaging photometer can be an effective instrument of research in various fields of physics. A pair of imaging photometers were developed in the frame of PAIPS project and provide a stereoscopic measurements of pulsating aurora in Murmansk region. One of these detectors was installed at Aragats station in June 2024 to measure near-UV emission of thunderstorms and extensive air showers. Results of the photometer measurements in auroral region, first data from the Aragats station, as well as possible application of compact imaging photometers for EAS measurements are presented. This research was funded by Russian Science Foundation grant number 22-62-00010 (https://rscf.ru/project/22-62-00010/).