Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 1.490
IF 5-year value: 1.445
IF 5-year
CiteScore value: 2.9
SNIP value: 0.789
IPP value: 1.48
SJR value: 0.74
Scimago H <br class='widget-line-break'>index value: 88
Scimago H
h5-index value: 21
ANGEO | Articles | Volume 38, issue 5
Ann. Geophys., 38, 999–1017, 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ann. Geophys., 38, 999–1017, 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 16 Sep 2020

Regular paper | 16 Sep 2020

Magnetic field fluctuation properties of coronal mass ejection-driven sheath regions in the near-Earth solar wind

Emilia K. J. Kilpua et al.

Related authors

Outer Van Allen belt trapped and precipitating electron flux responses to two interplanetary magnetic clouds of opposite polarity
Harriet George, Emilia Kilpua, Adnane Osmane, Timo Asikainen, Milla M. H. Kalliokoski, Craig J. Rodger, Stepan Dubyagin, and Minna Palmroth
Ann. Geophys., 38, 931–951,,, 2020
Short summary
Outer radiation belt and inner magnetospheric response to sheath regions of coronal mass ejections: a statistical analysis
Milla M. H. Kalliokoski, Emilia K. J. Kilpua, Adnane Osmane, Drew L. Turner, Allison N. Jaynes, Lucile Turc, Harriet George, and Minna Palmroth
Ann. Geophys., 38, 683–701,,, 2020
Short summary
Cosmic noise absorption signature of particle precipitation during interplanetary coronal mass ejection sheaths and ejecta
Emilia Kilpua, Liisa Juusola, Maxime Grandin, Antti Kero, Stepan Dubyagin, Noora Partamies, Adnane Osmane, Harriet George, Milla Kalliokoski, Tero Raita, Timo Asikainen, and Minna Palmroth
Ann. Geophys., 38, 557–574,,, 2020
Short summary
GUMICS-4 analysis of interplanetary coronal mass ejection impact on Earth during low and typical Mach number solar winds
Antti Lakka, Tuija I. Pulkkinen, Andrew P. Dimmock, Emilia Kilpua, Matti Ala-Lahti, Ilja Honkonen, Minna Palmroth, and Osku Raukunen
Ann. Geophys., 37, 561–579,,, 2019
Short summary
Fast plasma sheet flows and X line motion in the Earth's magnetotail: results from a global hybrid-Vlasov simulation
Liisa Juusola, Sanni Hoilijoki, Yann Pfau-Kempf, Urs Ganse, Riku Jarvinen, Markus Battarbee, Emilia Kilpua, Lucile Turc, and Minna Palmroth
Ann. Geophys., 36, 1183–1199,,, 2018
Short summary

Cited articles

Ala-Lahti, M., Kilpua, E. K. J., Souček, J., Pulkkinen, T. I., and Dimmock, A. P.: Alfvén Ion Cyclotron Waves in Sheath Regions Driven by Interplanetary Coronal Mass Ejections, J. Geophys. Res.-Space, 124, 3893–3909,, 2019. a, b
Ala-Lahti, M. M., Kilpua, E. K. J., Dimmock, A. P., Osmane, A., Pulkkinen, T., and Souček, J.: Statistical analysis of mirror mode waves in sheath regions driven by interplanetary coronal mass ejection, Ann. Geophys., 36, 793–808,, 2018. a, b
Alexandrova, O., Lacombe, C., and Mangeney, A.: Spectra and anisotropy of magnetic fluctuations in the Earth's magnetosheath: Cluster observations, Ann. Geophys., 26, 3585–3596,, 2008. a
Alexandrova, O., Chen, C. H. K., Sorriso-Valvo, L., Horbury, T. S., and Bale, S. D.: Solar Wind Turbulence and the Role of Ion Instabilities, Space Sci. Rev., 178, 101–139,, 2013. a, b
Alves, L. R., Da Silva, L. A., Souza, V. M., Sibeck, D. G., Jauer, P. R., Vieira, L. E. A., Walsh, B. M., Silveira, M. V. D., Marchezi, J. P., Rockenbach, M., Lago, A. D., Mendes, O., Tsurutani, B. T., Koga, D., Kanekal, S. G., Baker, D. N., Wygant, J. R., and Kletzing, C. A.: Outer radiation belt dropout dynamics following the arrival of two interplanetary coronal mass ejections, Geophys. Res. Lett., 43, 978–987,, 2016. a
Publications Copernicus
Short summary
This paper studies magnetic field fluctuations in three turbulent sheath regions ahead of interplanetary coronal mass ejections (ICMEs) in the near-Earth solar wind. Our results show that fluctuation properties vary significantly in different parts of the sheath when compared to solar wind ahead. Turbulence in sheaths resembles that of the slow solar wind in the terrestrial magnetosheath, e.g. regarding compressibility and intermittency, and it often lacks Kolmogorov's spectral indices.
This paper studies magnetic field fluctuations in three turbulent sheath regions ahead of...