List of publications of Liisa Juusola (

Updated 8 Jan 2024

Peer-refereed scientific articles

Journal articles as first author

  1. Juusola, L., Viljanen, A., Partamies, N., Vanhamäki, H., Kellinsalmi, M., and Walker, S.: Three principal components describe the spatiotemporal development of mesoscale ionospheric equivalent currents around substorm onsets, Ann. Geophys., 41, 483-510,, 2023.
  2. Juusola, L., Viljanen, A., Dimmock, A. P., Kellinsalmi, M., Schillings, A., and Weygand, J. M. (2023): Drivers of rapid geomagnetic variations at high latitudes, Ann. Geophys., 41, 13-37,
  3. Juusola, L., H. Vanhamäki, A. Viljanen, and M. Smirnov (2020): Induced currents due to 3D ground conductivity play a major role in the interpretation of geomagnetic variations, Ann. Geophys., 38, 983-998,
  4. Juusola, L., Y. Pfau-Kempf, U. Ganse, M. Battarbee, T. Brito, M. Grandin, L. Turc, and M. Palmroth (2018): A possible source mechanism for magnetotail current sheet flapping, Ann. Geophys., 36, 1027-1035,
  5. Juusola, L., S. Hoilijoki, Y. Pfau-Kempf, U. Ganse, R. Jarvinen, M. Battarbee, E. Kilpua, L. Turc, and M. Palmroth (2018): Fast plasma sheet flows and X line motion in the Earth's magnetotail: results from a global hybrid-Vlasov simulation, Ann. Geophys., 36, 1183-1199,
  6. Juusola L., W. E. Archer, K. Kauristie, J. K. Burchill, H. Vanhamäki, A. T. Aikio (2016): Ionospheric conductances and currents of a morning-sector auroral arc from Swarm-A electric and magnetic field measurements, Geophys. Res. Lett., 43,
  7. Juusola L., K. Kauristie, H. Vanhamäki, A. T. Aikio, and M. van de Kamp (2016): Comparison of auroral ionospheric and field-aligned currents derived from Swarm and ground magnetic field measurements, J. Geophys. Res., 121,
  8. Juusola, L., K. Kauristie, M. van de Kamp, E. I. Tanskanen, K. Mursula, T. Asikainen, K. Andréeová, N. Partamies, H. Vanhamäki, and A. Viljanen (2015): Solar wind control of ionospheric equivalent currents and their time derivatives, J. Geophys. Res. Space Physics, 120, 4971-4992,
  9. Juusola, L., A. Viljanen, M. van de Kamp, E. I. Tanskanen, H. Vanhamäki, N. Partamies, and K. Kauristie (2015): High-latitude ionospheric equivalent currents during strong space storms: Regional perspective, Space Weather, 13, 49-60,
  10. Juusola, L., G. Facskó, I. Honkonen, P. Janhunen, H. Vanhamäki, K. Kauristie, T. V. Laitinen, S. E. Milan, M. Palmroth, E. I. Tanskanen, and A. Viljanen (2014): Statistical comparison of seasonal variations in the GUMICS-4 global MHD model ionosphere and measurements, Space Weather, 11, 582-600,
  11. Juusola, L., S. E. Milan, M. Lester, A. Grocott, and S. M. Imber (2014): Interplanetary magnetic field control of the ionospheric field-aligned current and convection distributions, J. Geophys. Res. Space Physics, 119, 3130-3149,
  12. Juusola, L., N. Partamies, and E. Tanskanen (2013): Effect of the ring current on preconditioning the magnetosphere for steady magnetospheric convection, Geophys. Res. Lett., 40,
  13. Juusola, L., M. Kubyshkina, R. Nakamura, T. Pitkänen, O. Amm, K. Kauristie, N. Partamies, H. Rème, K. Snekvik, and D. Whiter (2013): Ionospheric signatures of a plasma sheet rebound flow during a substorm onset, J. Geophys. Res. Space Physics, 118, 350-363,
  14. Juusola, L., N. Østgaard, E. Tanskanen, N. Partamies, and K. Snekvik (2011): Earthward plasma sheet flows during substorm phases, J. Geophys. Res., 116, A10228,
  15. Juusola, L., N. Østgaard, and E. Tanskanen (2011): Statistics of plasma sheet convection, J. Geophys. Res., 116, A08201,
  16. Juusola, L., K. Andréeová, O. Amm, K. Kauristie, S. E. Milan, M. Palmroth, and N. Partamies (2010): Effects of a solar wind dynamic pressure increase in the magnetosphere and in the ionosphere, Ann. Geophys., 28, 1945-1959,
  17. Juusola, L., R. Nakamura, O. Amm, and K. Kauristie (2009): Conjugate ionospheric equivalent currents during bursty bulk flows, J. Geophys. Res., 114, A04313,
  18. Juusola, L., K. Kauristie, O. Amm, and P. Ritter (2009): Statistical dependence of auroral ionospheric currents on solar wind and geomagnetic parameters from 5 years of CHAMP satellite data, Ann. Geophys., 27, 1005-1017,
  19. Juusola, L., O. Amm, H. U. Frey, K. Kauristie, R. Nakamura, C. J. Owen, V. Sergeev, J. A. Slavin, A. and Walsh (2008): Ionospheric signatures during a magnetospheric flux rope event, Ann. Geophys., 26, 3967-3977,
  20. Juusola, L., O. Amm, K. Kauristie, and A. Viljanen (2007): A model for estimating the relation between the Hall to Pedersen conductance ratio and ground magnetic data derived from CHAMP satellite statistics, Ann. Geophys., 25, 721-736,
  21. Juusola, L., O. Amm, and A. Viljanen (2006): One-dimensional spherical elementary current systems and their use for determining ionospheric currents from satellite measurements, Earth, Planets and Space, 58, 667-678,

Journal articles as co-author

  1. Aikio, A. T., H. Vanhamäki, A. B. Workayehu, I. I. Virtanen, K. Kauristie, L. Juusola, S. Buchert, D. Knudsen (2018): Swarm satellite and EISCAT radar observations of a plasma flow channel in the auroral oval near magnetic midnight, J. Geophys. Res. Space Physics, 123, 5140-5158,
  2. Archer, W. E., D. J. Knudsen, J. K. Burchill, B. J. Jackel, E. F. Donovan, M. Connors, and L. Juusola (2017): Birkeland Current Boundary Flows, J. Geophys. Res., 122,
  3. Andréeová, K., L. Juusola, E. K. J. Kilpua, and H. E. J. Koskinen (2014): Analysis of double-step response to an interplanetary shock in the dayside magnetosphere, Ann. Geophys., 32, 1293-1302,
  4. Andreeova, K., T. I. Pulkkinen, L. Juusola, M. Palmroth, and O. Santolík (2011): Propagation of a shock-related disturbance in the Earth's magnetosphere, J. Geophys. Res., 116, A01213,
  5. Apatenkov, S. V., V. A. Pilipenko, E. I. Gordeev, A. Viljanen, L. Juusola, V. B. Belakhovsky, Y. A. Sakharov, and V. N. Selivanov (2020): Auroral omega bands are a significant cause of large geomagnetically induced currents Geophys. Res. Lett., 47, e2019GL086677,
  6. Blanco-Cano, X., M. Battarbee, L. Turc, A. P. Dimmock, E. K. J. Kilpua, S. Hoilijoki, U. Ganse, D. G. Sibeck, P. A. Cassak, R. C. Fear, R. Jarvinen, L. Juusola, Y. Pfau-Kempf, R. Vainio, and M. Palmroth (2018): Cavitons and spontaneous hot flow anomalies in a hybrid-Vlasov global magnetospheric simulation, Ann. Geophys., 36, 1081-1097,
  7. Frey, H. U., O. Amm, C. C. Chaston, S. Fu, G. Haerendel, L. Juusola, T. Karlsson, B. Lanchester, R. Nakamura, N. Østgaard, T. Sakanoi, E. Séran, D. Whiter, J. Weygand, K. Asamura, and M. Hirahara (2010): Small and meso-scale properties of a substorm onset auroral arc, J. Geophys. Res., 115, A10209,
  8. Grocott, A., T. K. Yeoman, S. E. Milan, O. Amm, H. U. Frey, L. Juusola, R. Nakamura, C. J. Owen, H. Reme, and T. Takada (2007): Multi-scale observations of magnetotail flux transport during IMF-northward non-substorm intervals, Ann. Geophys., 25, 1709-1720,
  9. Haerendel, G., H. U. Frey, C. C. Chaston, O. Amm, L. Juusola, R. Nakamura, E. Seran, and J. M. Weygand (2012): Birth and life of auroral arcs embedded in the evening auroral oval convection: A critical comparison of observations with theory, J. Geophys. Res., 117, A12220,
  10. Hoilijoki, S., U. \ Ganse, D. G. Sibeck, P. A. Cassak, L. Turc, M. Battarbee, R. C. Fear, X. Blanco-Cano, A. P. Dimmock, E. K. J. Kilpua, R. Jarvinen, L. Juusola, Y. Pfau-Kempf, and M. Palmroth (2019): Properties of magnetic reconnection and FTEs on the dayside magnetopause with and without positive IMF Bx component during southward IMF, J. Geophys. Res. Space Physics, 124,
  11. Ieda, A., K. Kauristie, Y. Nishimura, Y. Miyashita, H. U. Frey, L. Juusola, D. Whiter, M. Nosé, M. O. Fillingim, F. Honary, N. C. Rogers, Y. Miyoshi, T. Miura, T. Kawashima, and S. Machida (2018): Simultaneous observation of auroral substorm onset in Polar satellite global images and ground-based all-sky images, Earth, Planets and Space, 70:73,
  12. Janhunen, P., M. Palmroth, T. Laitinen, I. Honkonen, L. Juusola, G. Facskó, T. I. Pulkkinen (2012): The GUMICS-4 global MHD magneto-sphere-ionosphere coupling simulation, J. Atm. Solar-Terr. Phys., 80, 48-59,
  13. Jarvinen, R., R. Vainio, M. Palmroth, L. Juusola, S. Hoilijoki, Y. Pfau-Kempf, U. Ganse, L. Turc, and S. von Alfthan (2018): Ion acceleration by flux transfer events in the terrestrial magnetosheath, Geophys. Res. Lett., 45,
  14. Kauristie, K., M. Myllys, N. Partamies, A. Viljanen, P. Peitso, L. Juusola, S. Ahmadzai, V. Singh, R. Keil, U. Martinez, A. Luginin, A. Glover, V. Navarro, and T. Raita (2016): Forecasting auroras from regional and global magnetic field measurements, Geosci. Instrum. Method. Data Syst., 5, 253-262,
  15. Kellinsalmi, M., A. Viljanen, L. Juusola, and S. Käki, S. (2022): The time derivative of the geomagnetic field has a short memory, Ann. Geophys., 40, 545-562,
  16. Kilpua, E., L. Juusola, M. Grandin, A. Kero, S. Dubyagin, N. Partamies, A. Osmane, H. George, M. Kalliokoski, T. Raita, T. Asikainen, and M. Palmroth (2020): Cosmic noise absorption signature of particle precipitation during interplanetary coronal mass ejection sheaths and ejecta, Ann. Geophys., 38, 557-574,
  17. Lanabere, V., Dimmock, A. P., Rosenqvist, L., Juusola, L., Viljanen, A., Johlander, A., and Odelstad, E. (2023). Analysis of the geoelectric field in Sweden over solar cycles 23 and 24: Spatial and temporal variability during strong GIC events. Space Weather, 21, e2023SW003588.
  18. Marshalko, E., M. Kruglyakov, A. Kuvshinov, L. Juusola, N. K. Kwagala, E. Sokolova, and V. Pilipenko (2021): Comparing three approaches to the inducing source setting for the ground electromagnetic field modeling due to space weather events, Space Weather, 19, e2020SW002657,
  19. Myllys, M., N. Partamies, and L. Juusola (2015): Latitude dependence of long-term geomagnetic activity and its solar wind drivers, Ann. Geophys., 33, 573-581,
  20. Nakamura, R., W. Baumjohann, E. Panov, M. Volwerk, J. Birn, A. Artemyev, A. A. Petrukovich, O. Amm, L. Juusola, M. V. Kubyshkina, S. Apatenkov, E. A. Kronberg, P. W. Daly, M. Fillingim, J. M. Weygand, A. Fazakerley, Y. Khotyaintsev (2013): Flow bouncing and electron injection observed by Cluster, J. Geophys. Res. Space Physics, 118,
  21. Norberg, J., L. Roininen, A. Kero, T. Raita, T. Ulich, M. Markkanen, L. Juusola, and K. Kauristie (2015): Sodankylä ionospheric tomography dataset 2003-2014, Geosci. Instrum. Method. Data Syst. Discuss., 5, 385-404,
  22. Østgaard, N., K. M. Laundal, L. Juusola, A. Åsnes, S. E. Håland, and J. M. Weygand (2011): Interhemispherical asymmetry of substorm onset locations and the interplanetary magnetic field, Geophys. Res. Lett., 38, L08104,
  23. Palmroth, M., S. Hoilijoki, L. Juusola, T. I. Pulkkinen, H. Hietala, Y. Pfau-Kempf, U. Ganse, S. von Alfthan, R. Vainio, and M. Hesse (2017): Tail reconnection in the global magnetospheric context: Vlasiator first results, Ann. Geophys., 35, 1269-1274,
  24. Partamies, N., J. M. Weygand, and L. Juusola (2017): Statistical study of auroral omega bands, Ann. Geophys., 35, 1069-1083,
  25. Partamies, N., L. Juusola, D. Whiter, and K. Kauristie (2015): Substorm evolution of auroral structures, J. Geophys. Res. Space Physics, 120, 5958-5972,
  26. Partamies, N., L. Juusola, E. Tanskanen, and K. Kauristie (2013): Statistical properties of substorms during different storm and solar cycle phases, Ann. Geophys., 31, 349-358,
  27. Partamies, N., L. Juusola, E. Tanskanen, K. Kauristie, J. M. Weygand, and Y. Ogawa (2011): Substorms during different storm phases, Ann. Geophys., 29, 2031-2043,
  28. Pfau-Kempf, Y., H. Hietala, S. E. Milan, L. Juusola, S. Hoilijoki, U. Ganse, S. von Alfthan, and M. Palmroth (2016): Evidence for transient, local ion foreshocks caused by dayside magnetopause reconnection, Ann. Geophys., 34, 943-959,
  29. Pitkänen, T., A. T. Aikio, and L. Juusola (2013): Observations of polar cap flow channel and plasma sheet flow bursts during substorm expansion, J. Geophys. Res. Space Physics, 118, 774-784,
  30. Schillings, A., L. Palin, H. J. Opgenoorth, M. Hamrin, L. Rosenqvist, J. W. Gjerloev, L. Juusola, and R. Barnes (2022): Distribution and occurrence frequency of dB/dt spikes during magnetic storms 1980-2020, Space Weather, 20, e2021SW002953,
  31. Snekvik, K., E. Tanskanen, N. Østgaard, L. Juusola, K. Laundal, E. I. Gordeev, and A. L. Borg (2012): Changes in the magnetotail configuration before near-Earth reconnection, J. Geophys. Res., 117, A02219,
  32. Snekvik, K., L. Juusola, N. Østgaard, and O. Amm (2009): Reconnection Hall current system observed in the magnetotail and in the ionosphere, Geophys. Res. Lett., 36, L08104,
  33. Snekvik, K., S. Haaland, N. Østgaard, H. Hasegawa, R. Nakamura, T. Takada, L. Juusola, O. Amm, F. Pitout, H. Reme, B. Klecker, and E. A. Lucek (2007), Cluster observations of a field aligned current at the dawn flank of a bursty bulk flow, Ann. Geophys., 25, 1405-1415,
  34. Takada, T., R. Nakamura, L. Juusola, O. Amm, W. Baumjohann, M. Volwerk, A. Matsuoka, B. Klecker, K. Snekvik, C. J. Owen, A. N. Fazakerley, H. U. Frey, H. Rème, E. A. Lucek, and C. Carr (2008): Local field-aligned currents in the magnetotail and ionosphere as observed by a Cluster, Double Star, and MIRACLE conjunction, J. Geophys. Res., 113, A07S20,
  35. Turc, L., U. Ganse, Y. Pfau-Kempf, S. Hoilijoki, M. Battarbee, L. Juusola, R. Jarvinen, T. Brito, M. Grandin, and M. Palmroth (2018): Foreshock properties at typical and enhanced interplanetary magnetic field strengths: results from hybrid-Vlasov simulations, J. Geophys. Res. Space Physics, 123, 5476-5493,
  36. Vanhamäki, H., A. Aikio, M. Voiculescu, L. Juusola, T. Nygrén, and R. Kuula (2016): Electrodynamic structure of the morning high-latitude trough region, J. Geophys. Res. Space Physics, 121, 2669-2682,
  37. Vokhmyanin, M., S. Apatenkov, E. Gordeev, V. Andreeva, N. Partamies, K. Kauristie, and L. Juusola (2021): Statistics on omega band properties and related geomagnetic variations, J. Geophys. Res. Space Physics, 126, e2021JA029468,

Chapter in research book

  1. Vanhamäki, H., and L. Juusola (2020): Introduction to Spherical Elementary Current Systems, in Ionospheric Multi-Spacecraft Analysis Tools (eds M. W. Dunlop and H. Lühr), ISSI Scientific Report Series 17, 5-33,
  2. Vanhamäki, H., and L. Juusola (2018): Review of Data Analysis Techniques for Estimating Ionospheric Currents Based on MIRACLE and Satellite Observations, in Electric Currents in Geospace and Beyond (eds A. Keiling, O. Marghitu, and M. Wheatland),


Doctoral dissertation (article)

  1. Juusola, L., (2009): Observations of the solar wind-magnetosphere-ionosphere coupling, Finnish Meteorological Institute Contributions, 78,

Master's thesis

  1. Juusola, L., (2004): One-dimensional spherical elementary current systems and their use for determining ionospheric currents from satellite measurements.