Spatio-temporal disturbances of the Earth’s magnetic field along the Struve Geodetic Arc

• Date: 2025
• Main Authors: Orlyuk, M.I., Romenets, A.O., Marchenko, A.V., Orlyuk, I.M.
• Format: Article
• Language: English
• Published: S. Subbotin Institute of Geophysics of the NAS of Ukraine 2025
• Subjects: Earth’s internal magnetic field; geomagnetic field variations; Struve Geodetic Arc; ionosphere
• Online Access: https://journals.uran.ua/geofizicheskiy/article/view/323184
• Journal Title: Geofizicheskiy Zhurnal

In 1816-1855, astronomer Friedrich Georg Wilhelm von Struve made the first topographic measurements along a 2822 km long segment of the meridian stretching from northern Norway (70°40′N) to southern Odesa Region (45°19′N) to determine the exact size and shape of the planet. This segment of the merid...