Vector Overhauser magnetometer POS-4: experience and prospects of application

The results of practical use a POS-4 vector magnetometer, developed by the Research Laboratory Quantum Magnetometry, UrFU (Yekaterinburg) and based on POS Overhauser sensors, are presented. Continuous measurements have been carried out at Paratunka observatory (IKIR FEB RAS, Kamchatka) since 2015, were done Saint Petersburg (GC RAS / IZMIRAN SPb Branch, Leningrad Region) in 2017-2018 performed Arti (Institute Geophysics, UB Sverdlovsk 2020. On new high-latitude White Sea (IAGA code WSE, GC MSU, Nikolai Pertsov Biological Station , Karelia), is used as main variometer for magnetic measurements. In April 2019, magnetometer was successfully field ice during TRANSARCTIC expedition Barents (AARI, Roshydromet). At beginning 2021 started testing two magnetometers Moskow observatory. According to it possible identify advantages disadvantages provide information its developers further modernization order improve efficiency reliability. Many years experience application determine areas where scientific applied usage will important results, example, Arctic regions or monitoring active zones around volcanoes.