Articles | Volume 33, issue 7
https://doi.org/10.5194/angeo-33-829-2015
© 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-33-829-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Estimating along-track plasma drift speed from electron density measurements by the three Swarm satellites
J. Park
CORRESPONDING AUTHOR
Korea Astronomy and Space Science Institute, Daejeon, Korea
GFZ, German Research Center for Geosciences, Potsdam, Germany
C. Stolle
GFZ, German Research Center for Geosciences, Potsdam, Germany
Faculty of Science, University of Potsdam, Potsdam, Germany
G. Malhotra
Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg VA, USA
J. B. H. Baker
Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg VA, USA
S. Buchert
Swedish Institute of Space Physics, Uppsala, Sweden
R. Gill
Swedish Institute of Space Physics, Uppsala, Sweden
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T. Živković, S. Buchert, P. Ritter, L. Palin, and H. Opgenoorth
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In this paper we analyze 21 conjunctions between the Cluster and CHAMP satellites while they were passing magnetic cusp during relatively quiet solar activity. Only three of the conjunctions reveal field-aligned currents on both satellites as well as neutral density enhancement in the thermosphere. Poynting and electron energy fluxes (EEF) as well as Joule heating were computed and the conclusion is that for these weak events EEF has the strongest contribution to the observed density increase.
T. A. Siddiqui, H. Lühr, C. Stolle, and J. Park
Ann. Geophys., 33, 235–243, https://doi.org/10.5194/angeo-33-235-2015, https://doi.org/10.5194/angeo-33-235-2015, 2015
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This paper presents the long-term observations of lunar tidal signatures in the equatorial electrojet (EEJ) and their relation to stratospheric sudden warming (SSW) events. We propose an approach to estimate the occurrence of SSW events before their direct observations (before 1952) from the magnetic field observations at Huancayo.
C. Xiong, Y.-L. Zhou, H. Lühr, and S.-Y. Ma
Ann. Geophys., 33, 185–196, https://doi.org/10.5194/angeo-33-185-2015, https://doi.org/10.5194/angeo-33-185-2015, 2015
J. Park, H. Lühr, and M. Noja
Ann. Geophys., 33, 129–135, https://doi.org/10.5194/angeo-33-129-2015, https://doi.org/10.5194/angeo-33-129-2015, 2015
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Total electron content (TEC) between low-Earth-orbit (LEO) satellites and the Global Navigation Satellite System (GNSS) satellites can be used to constrain three-dimensional morphology of equatorial plasma bubbles (EPBs). TEC gradient observed along the LEO track is strongest when the corresponding GNSS satellite is located equatorward and westward of the LEO satellite. This anisotropy supports the idea that EPBs have three-dimensional shell structures.
K. Schlegel and H. Lühr
Hist. Geo Space. Sci., 5, 149–154, https://doi.org/10.5194/hgss-5-149-2014, https://doi.org/10.5194/hgss-5-149-2014, 2014
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
C. Xiong and H. Lühr
Ann. Geophys., 32, 623–631, https://doi.org/10.5194/angeo-32-623-2014, https://doi.org/10.5194/angeo-32-623-2014, 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
G. N. Kervalishvili and H. Lühr
Ann. Geophys., 32, 249–261, https://doi.org/10.5194/angeo-32-249-2014, https://doi.org/10.5194/angeo-32-249-2014, 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
J. Park, H. Lühr, and J. Rauberg
Ann. Geophys., 31, 1507–1520, https://doi.org/10.5194/angeo-31-1507-2013, https://doi.org/10.5194/angeo-31-1507-2013, 2013
H. Lühr and C. Manoj
Ann. Geophys., 31, 1315–1331, https://doi.org/10.5194/angeo-31-1315-2013, https://doi.org/10.5194/angeo-31-1315-2013, 2013
C. Xiong and H. Lühr
Ann. Geophys., 31, 1115–1130, https://doi.org/10.5194/angeo-31-1115-2013, https://doi.org/10.5194/angeo-31-1115-2013, 2013
J. Park and H. Lühr
Ann. Geophys., 31, 1035–1044, https://doi.org/10.5194/angeo-31-1035-2013, https://doi.org/10.5194/angeo-31-1035-2013, 2013
G. N. Kervalishvili and H. Lühr
Ann. Geophys., 31, 541–554, https://doi.org/10.5194/angeo-31-541-2013, https://doi.org/10.5194/angeo-31-541-2013, 2013
B. Heilig and H. Lühr
Ann. Geophys., 31, 529–539, https://doi.org/10.5194/angeo-31-529-2013, https://doi.org/10.5194/angeo-31-529-2013, 2013
H. Lühr, F. Yin, and R. Bock
J. Sens. Sens. Syst., 2, 9–17, https://doi.org/10.5194/jsss-2-9-2013, https://doi.org/10.5194/jsss-2-9-2013, 2013
Y. L. Zhou, S. Y. Ma, R. S. Liu, H. Luehr, and E. Doornbos
Ann. Geophys., 31, 15–30, https://doi.org/10.5194/angeo-31-15-2013, https://doi.org/10.5194/angeo-31-15-2013, 2013
Short summary
Though high-latitude plasma convection has been monitored with a number of methods, more independent measurements are still warranted. In this study we introduce an automatic method to estimate along-track plasma drift velocity in the high-latitude ionosphere using the Swarm constellation. The obtained velocity is in qualitative agreement with Super Dual Auroral Radar Network (SuperDARN) data. The method can be generalized to any satellite constellations in pearls-on-a-string configurations.
Though high-latitude plasma convection has been monitored with a number of methods, more...