Improved space weather models at high latitudes
The polar ionosphere is a dynamic region that readily responds to changes in solar irradiance, the solar wind, the magnetosphere and space plasma. Understanding the physical processes that give rise to the scintillation of radio wave signals that cross the ionosphere is key to determining space weather. The EU-funded POLAR-4DSpace project plans to investigate how auroral particle precipitations and geomagnetic activity create plasma irregularities at high latitudes and how these affect the global navigation satellite system. The project integrates in situ measurements of plasma from sounding rockets, numerical simulations and statistical analysis with ground- and satellite-based observations at both hemispheres. The results will provide a valuable foundation for developing accurate space weather models that will increase the security of operations in the polar regions.
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