Abstract
The cartographical research of electric and magnetic fields in the central part of Veliky Novgorod is executed. Measurements are executed in 121 points of a residential zone and at 2 intersections of high-voltage lines. The research showed that tension of electric fields everywhere does not exceed admissible values. Indicators higher than 1-3 in oil are noted only about high-voltage lines. Values of magnetic induction also low, and almost everywhere correspond to safe level, including most the most strict perspective foreign standards 200-400 ntl. Levels of magnetic induction depend on the nature of use of lands and building, like other cities of Russia, but is slightly lower, with prevalence of values to 20 ntl. The minimum values, to 10 ntl, are noted in recreational zones. Rather increased values are noted in areas of houses of construction of last decades where the electrical wiring not quite corresponds to modern loadings, including magnetic fields more intensively 100 ntl are noted locally. Owing to close bedding of ground waters underground laying of cables for Great Novgorod is uncharacteristic, and the anomaly connected with it is noted only in one place. Results of the research presented by the original isolinear map created in the ArcGIS ArcMap programs with use of a method of bilinear interpolation.
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