Anton Tyutyukov, a researcher from the Perm National Research Polytechnic University, has investigated the impact of geomagnetic storms on the performance of satellite navigation systems. His findings indicate a significant decrease in measurement accuracy during such periods. The study reveals that, in certain scenarios, navigational errors can escalate by as much as 50%.
Standard navigation devices, like those found in smartphones, typically display a flat map showing only latitude and longitude. It was observed that during [geomagnetic] storms, the precision of map readings diminishes, with coordinate determination becoming 14% less accurate. Furthermore, unpredictability, meaning the extent and suddenness of marker displacement, increases by 33-50%. For the average user, this translates to the navigator intermittently displaying different locations, with these jumps becoming more erratic. <…> The error rarely exceeds ten meters, which is still sufficient for a navigator to direct you to the wrong building entrance or a spot on the opposite side of the street.
Geomagnetic disturbances have a particularly substantial effect on altitude determination. This parameter is of paramount importance for surveyors, construction workers, and mining engineers, as it is used in site layout, foundation pouring, and structural installation. According to the research outcomes, during magnetic storms, the error in altitude determination rises by approximately 20%. This could prove critical for prolonged static measurements.
A similarly noticeable decline in the accuracy of coordinate determination on the ground was also observed. On average, the error increases by 23.5%, with the variability of results potentially reaching 50%. This implies that the actual position of an object could shift by tens of centimeters compared to its calculated location. Such deviations could lead to errors in construction, object monitoring, and other tasks demanding high precision from satellite navigation.
An unexpected phenomenon was discovered: on calm days, a greater number of stations experience significant coordinate determination failures than during geomagnetic storms. However, during storm days, the average magnitude of positioning errors increases. It is probable that global geomagnetic field disturbances alter the overall interference statistics, effectively masking local error sources.
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