Joule heating effects on ionosphere-thermosphere coupling and neutral density (JOIN)


We study variations in the density of the upper atmosphere during geomagnetic storms by utilizing ESA's satellite missions and ground-based observation networks.


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European Space Agency

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University of Oulu

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Project description

Understanding the detailed spatial and temporal dynamics of the space environment is a key task in solar-terrestrial research. This is also a fundamental requisite for providing successful space weather forecasts, such as predicting changes in atmospheric drag experienced by satellites at low-Earth obits (LEO). The high-latitude auroral ionosphere is connected by magnetic field lines to a large part of the magnetospheric volume, making it a “focus area” of magnetospheric dynamics. Consequently, space weather disturbances are also most strongly manifested at high latitudes.

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