Articles | Volume 33, issue 4
https://doi.org/10.5194/angeo-33-437-2015
© Author(s) 2015. 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-33-437-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
The dayside magnetopause location during radial interplanetary magnetic field periods: Cluster observation and model comparison
Dept. of Space Physics, School of Electronic Information, Wuhan University, Hubei, China
Sate Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing, China
Dept. of Space Physics, School of Electronic Information, Wuhan University, Hubei, China
J.-H. Shue
Institute of Space Science, National Central University, Jhongli, Taiwan, Republic of China
L. Cai
Dept. of Space Physics, School of Electronic Information, Wuhan University, Hubei, China
Institute of Space Science, National Central University, Jhongli, Taiwan, Republic of China
Related authors
Tao Huang, Hermann Lühr, and Hui Wang
Ann. Geophys., 35, 1249–1268, https://doi.org/10.5194/angeo-35-1249-2017, https://doi.org/10.5194/angeo-35-1249-2017, 2017
Short summary
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.
Hermann Lühr, Tao Huang, Simon Wing, Guram Kervalishvili, Jan Rauberg, and Haje Korth
Ann. Geophys., 34, 901–915, https://doi.org/10.5194/angeo-34-901-2016, https://doi.org/10.5194/angeo-34-901-2016, 2016
Short summary
Short summary
ESA's constellation mission Swarm makes it possible for the first time to determine field-aligned currents (FACs) reliably in the ionosphere. FACs are able to transport energy from the solar wind to the Earth and heat the upper atmosphere. Here we investigate FAC structures that have been missed by previous satellite missions. Most of them are found poleward of the northern light zone. The energy sources seem to be located on the nightside of Earth about 100 000 km away.
H. Wang, H. Lühr, A. Ridley, and T. Huang
Ann. Geophys., 32, 533–542, https://doi.org/10.5194/angeo-32-533-2014, https://doi.org/10.5194/angeo-32-533-2014, 2014
Hui Wang, Kedeng Zhang, Zhichao Zheng, and Aaron James Ridley
Ann. Geophys., 36, 509–525, https://doi.org/10.5194/angeo-36-509-2018, https://doi.org/10.5194/angeo-36-509-2018, 2018
Short summary
Short summary
For subauroral polarization streams (SAPS) commencing at different universal
times (UT), the strongest westward neutral winds exhibit large variations
in amplitudes. The effect of a sine-wave oscillation of SAPS on the neutral wind also exhibits UT variations in association with the solar illumination. The reduction in the electron density and enhancement in the air mass density are strongest when the maximum solar illumination collocates with the SAPS.
Tao Huang, Hermann Lühr, and Hui Wang
Ann. Geophys., 35, 1249–1268, https://doi.org/10.5194/angeo-35-1249-2017, https://doi.org/10.5194/angeo-35-1249-2017, 2017
Short summary
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.
Hermann Lühr, Tao Huang, Simon Wing, Guram Kervalishvili, Jan Rauberg, and Haje Korth
Ann. Geophys., 34, 901–915, https://doi.org/10.5194/angeo-34-901-2016, https://doi.org/10.5194/angeo-34-901-2016, 2016
Short summary
Short summary
ESA's constellation mission Swarm makes it possible for the first time to determine field-aligned currents (FACs) reliably in the ionosphere. FACs are able to transport energy from the solar wind to the Earth and heat the upper atmosphere. Here we investigate FAC structures that have been missed by previous satellite missions. Most of them are found poleward of the northern light zone. The energy sources seem to be located on the nightside of Earth about 100 000 km away.
C. Xiong, H. Lühr, H. Wang, and M. G. Johnsen
Ann. Geophys., 32, 609–622, https://doi.org/10.5194/angeo-32-609-2014, https://doi.org/10.5194/angeo-32-609-2014, 2014
H. Wang, H. Lühr, A. Ridley, and T. Huang
Ann. Geophys., 32, 533–542, https://doi.org/10.5194/angeo-32-533-2014, https://doi.org/10.5194/angeo-32-533-2014, 2014
H. Wang and H. Lühr
Ann. Geophys., 31, 1521–1534, https://doi.org/10.5194/angeo-31-1521-2013, https://doi.org/10.5194/angeo-31-1521-2013, 2013