New Geophysical Monitoring Point in the High Arctic – Seismic Infrasound Array on Alexandra Land Island of the Franz Josef Land Archipelago

The paper describes a new array for geophysical monitoring of the Arctic zone of the Russian Federation, created on Alexandra Land Island, Franz Josef Land Archipelago. The array consists of a broadband seismic station and three low-frequency microphones. The technical characteristics of the equipment, installation conditions and organization of the communication channel are described. The characteristics of background seismic and acoustic noise and their variations during the year are given. The paper presents the results of the analysis of data obtained at the ZEFI seismic infrasound array in 2024. The capabilities of the complex to record seismic events at different epicentral distances and acoustic events of various natures are demonstrated. Examples of recording pairs of seismic and acoustic (infrasound) signals generated by a common source associated with exogenous processes of destruction of the Arctic cryosphere are shown. Thus, the registration capabilities of the new geophysical observation point in the high-latitude Arctic for observing tectonic processes on ocean ridges and the shelf of the Arctic seas, as well as monitoring the processes of transformation of the Arctic cryosphere of the Franz Josef Land archipelago, were demonstrated.