5 Result(s)
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Article
Magnetic Field Data Correction in Space for Modelling the Lithospheric Magnetic Field
The Earth’s magnetic field as it is measured by low-Earth orbit satellites such as Swarm and CHAMP results from the superposition of internal and external source fields overlap** in time and in space. The Earth...
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Article
On the Usage of Geomagnetic Indices for Data Selection in Internal Field Modelling
We present a review on geomagnetic indices describing global geomagnetic storm activity (Kp, am, Dst and dDst/dt) and on indices designed to characterize high latitude currents and substorms (PC and AE-indices an...
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Article
Characteristics of a stable are based on FAST and MIRACLE observations
A stable evening sector are is studied using observations from the FAST satellite at 1250 km altitude and the MIRACLE ground-based network, which contains all-sky cameras, coherent radars (STARE), and magnetom...
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Article
Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures
Rapid fading of auroral activity a few minutes before substorm breakup has earlier been analyzed in case-studies. Here we report on a study in which all-sky camera (ASC) and magnetic data over 3 years were exa...
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Article
What can we tell about global auroral-electrojet activity from a single meridional magnetometer chain?
The AE indices are generally used for monitoring the level of magnetic activity in the auroral oval region. In some cases, however, the oval is either so expanded or contracted that the latitudinal coverage of th...
