Articles | Volume 35, issue 6
https://doi.org/10.5194/angeo-35-1249-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-35-1249-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Regular paper
| 
27 Nov 2017
Regular paper |
| 27 Nov 2017
Global characteristics of auroral Hall currents derived from the Swarm constellation: dependences on season and IMF orientation
Department of Space Physics, College of Electronic Information, Wuhan
University, 430072 Wuhan, China
GFZ, German Research Centre for Geosciences, Sect. 2.3
“Geomagnetism”, 14473 Potsdam, Germany
Hermann Lühr
GFZ, German Research Centre for Geosciences, Sect. 2.3
“Geomagnetism”, 14473 Potsdam, Germany
Department of Space Physics, College of Electronic Information, Wuhan
University, 430072 Wuhan, China
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Short summary
This is the first study considering ionospheric currents (both field-aligned current and Hall current) derived from high-resolution magnetic field data of the Swarm constellation in both hemispheres. The prominent auroral electrojets are found to be closely controlled by the solar wind input, but we find no dependence of their intensity on the IMF By orientation. An important finding is that all the IMF By dependences of FACs and Hall currents practically disappear in the dark winter hemisphere.
This is the first study considering ionospheric currents (both field-aligned current and Hall...
