## 1 Possible Risks to Pipelines from Geomagnetic Variations
The number of cases with significant (>10 A) currents in the pipeline in southern Finland correlated well with the number of sunspots, which confirmed the direct relationship of the GIC with the solar/geomagnetic activity [8]. In the trans-Alaska pipeline during strong magnetic disturbances, current surges up to 200 A occurred [9]. In Northern Alberta (Canada), failures in the cathodic protection associated with geomagnetic disturbances were identified [10]. In a pipeline in Northern Norway, it was found that the PSP fluctuates with an amplitude of ~5 V during magnetic disturbances [11]. Strong geomagnetic disturbances can cause quite significant effects in technological systems at mid-latitudes as well. In Australia and New Zealand, during severe storms, PSP fluctuations on pipelines for a long time were several times higher than the established limits [12,13]. In the pipeline in northern Bavaria, the peak current values upon a moderate geomagnetic activity reached ~12 A, and the PSP variations were ~3 V during the magnetic storm main phase [14]. The largest PSP variations associated with geomagnetic fluctuations were observed in the Bolivia-Brazil gas pipeline buried 0.5 m under the ground at the ends of the pipeline [15]. The Arctic zone of the Russian Federation is a promising testing ground for the studies of GIC influence on ground-based technological systems. In this territory, the GIC monitoring system along the power transmission line at the Kola Peninsula has permanently been operating since 2011 [16]. It is the only system that provides the GIC monitoring data for academic research. In this area, especially at the Yamal Peninsula and the Arctic shelf, the centers of the natural gas production and transportation were formed. In addition to practical applications, ground-based magnetometers form the basis for the studies of electromagnetic processes in near-Earth space. The study of the mechanisms of solar-terrestrial relationships has also led to the creation of a new scientific discipline--the \"space climate\". For the space climate studies, it is very important to have long-termtime series of geomagnetic observations. The Arctic territory of the Russian Federation, which covers approximately 1/3 of the auroral oval, can be a viable support to satellite missions in the ionosphere and magnetosphere. Under the harsh Arctic conditions, Russian scientific organizations support long-term observations (the list of institutes maintaining regular magnetometer observations at high latitudes is given at the end of the paper). IKFIA conducts complex observations at a network of stations in Eastern Siberia and the Far East. AARI has deployed magnetic stations along the Arctic coast up to Chukotka. PGI has a complex of observations on the Kola Peninsula and Svalbard. New magnetic stations were installed by GC [17]. IZMIRAN deployed several stations on the Yamal Peninsula. However, the data of these observations are scattered among various sources and stored in different formats. Although the monitoring of the geomagnetic field in the Russian Arctic zone is extremely important for space and applied science, the availability of data from Russian stations to the world research community is still limited. This paper describes a new database, which includes an archive of magnetovariational observations in the Russian Arctic and gives examples of its use for scientific and applied problems. Particular attention is paid to the territory of Yamal and Western Siberia, where the active development of the infrastructure is in progress now. These experimental data can serve as a basis for studying the features of geomagnetically induced electric fields. The database is augmented with the global 3D model of the Earth's conductivity structure. The information on the geoelectric structure makes it possible to obtain estimates of extreme GIC values in infrastructure facilities and assess the possible increase in electrocorrosion of pipelines and the reduction in their service life.