Sie haben gesucht nach VerfasserIn: 'Viljanen, A.', in der Datenbank: Bibliothekskatalog.
Anzahl der Treffer: 20
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Atmospheric data over a solar cycle: no connection between galactic cosmic rays and new particle formation
Kulmala, M.; Riipinen, I.; Nieminen, T.; Hulkkonen, M.; Sogacheva, L.; Manninen, H. E.; Paasonen, P.; Petäjä, T.; Maso, M.; Aalto, P. P.; Viljanen, A.; Usoskin, I.; Vainio, R.; Mirme, S.; Mirme, A.; Minikin, A.; Petzold, A.; Hõrrak, U.; Plass-Dülmer, C.; Birmili, W.; Kerminen, V.-M.
In: Atmospheric Chemistry and Physics ; 10, no. 4
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2010
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Analogue model studies of induction effects at auroral latitudes
Viljanen, A.; Szarka, L.
In: Annales Geophysicae ; 13, no. 11
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1995
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| 3 |
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Complex image method for calculating electric and magnetic fields produced by an auroral electrojet of finite length
Pirjola, R.; Viljanen, A.
In: Annales Geophysicae ; 16, no. 11
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1998
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| 4 |
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Ground-based and satellite observations of high-latitude auroral activity in the dusk sector of the auroral oval
Kauristie, K.; Pulkkinen, T. I.; Amm, O.; Viljanen, A.; Syrjäsuo, M.; Janhunen, P.; Massetti, S.; Orsini, S.; Candidi, M.; Watermann, J.; Donovan, E.; Prikryl, P.; Mann, I. R.; Eglitis, P.; Smith, C.; Denig, W. F.; Opgenoorth, H. J.; Lockwood, M.; Dunlop, M.; Vaivads, A.; André, M.
In: Annales Geophysicae ; 19, no. 10/12
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2001
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| 5 |
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Time derivative of the horizontal geomagnetic field as an activity indicator
Viljanen, A.; Nevanlinna, H.; Pajunpää, K.; Pulkkinen, A.
In: Annales Geophysicae ; 19, no. 9
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2001
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| 6 |
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Coordinated ground-based and Cluster observations of large amplitude global magnetospheric oscillations during a fast solar wind speed interval
Mann, I. R.; Voronkov, I.; Dunlop, M.; Donovan, E.; Yeoman, T. K.; Milling, D. K.; Wild, J.; Kauristie, K.; Amm, O.; Bale, S. D.; Balogh, A.; Viljanen, A.; Opgenoorth, H. J.
In: Annales Geophysicae ; 20, no. 4
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2002
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| 7 |
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Evaluation of the geometry of ionospheric current systems related to rapid geomagnetic variations
Apatenkov, S. V.; Sergeev, V. A.; Pirjola, R.; Viljanen, A.
In: Annales Geophysicae ; 22, no. 1
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2004
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| 8 |
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Fast computation of the geoelectric field using the method of elementary current systems and planar Earth models
Viljanen, A.; Pulkkinen, A.; Amm, O.; Pirjola, R.; Korja, T.; BEAR Working Group
In: Annales Geophysicae ; 22, no. 1
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2004
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| 9 |
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Ionospheric currents estimated simultaneously from CHAMP satelliteand IMAGE ground-based magnetic field measurements: a statisticalstudy at auroral latitudes
Ritter, P.; Lühr, H.; Viljanen, A.; Amm, O.; Pulkkinen, A.; Sillanpää, I.
In: Annales Geophysicae ; 22, no. 2
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2004
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| 10 |
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High-latitude ionospheric currents during very quiet times: their characteristics and predictability
Ritter, P.; Lühr, H.; Maus, S.; Viljanen, A.
In: Annales Geophysicae ; 22, no. 6
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2004
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| 11 |
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Mesoscale ionospheric electrodynamics of omega bands determined from ground-based electromagnetic and satellite optical observations
Amm, O.; Aksnes, A.; Stadsnes, J.; Østgaard, N.; Vondrak, R. R.; Germany, G. A.; Lu, G.; Viljanen, A.
In: Annales Geophysicae ; 23, no. 2
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2005
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| 12 |
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Induction effects on ionospheric electric and magnetic fields
Vanhamäki, H.; Viljanen, A.; Amm, O.
In: Annales Geophysicae ; 23, no. 5
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2005
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| 13 |
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Relation between substorm characteristics and rapid temporal variations of the ground magnetic field
Viljanen, A.; Tanskanen, E. I.; Pulkkinen, A.
In: Annales Geophysicae ; 24, no. 2
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2006
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| 14 |
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Characteristics of night-time absorption spike events
Aminaei, A.; Honary, F.; Kavanagh, A. J.; Spanswick, E.; Viljanen, A.
In: Annales Geophysicae ; 24, no. 7
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2006
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| 15 |
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New method for solving inductive electric fields in the non-uniformly conducting ionosphere
Vanhamäki, H.; Amm, O.; Viljanen, A.
In: Annales Geophysicae ; 24, no. 10
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2006
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| 16 |
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Role of inductive electric fields and currents in dynamical ionospheric situations
Vanhamäki, H.; Amm, O.; Viljanen, A.
In: Annales Geophysicae ; 25, no. 2
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2007
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| 17 |
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A model for estimating the relation between the Hall to Pedersen conductance ratio and ground magnetic data derived from CHAMP satellite statistics
Juusola, L.; Amm, O.; Kauristie, K.; Viljanen, A.
In: Annales Geophysicae ; 25, no. 3
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2007
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| 18 |
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Space weather events in July 1982 and October 2003 and the effects of geomagnetically induced currents on Swedish technical systems
Wik, M.; Pirjola, R.; Lundstedt, H.; Viljanen, A.; Wintoft, P.; Pulkkinen, A.
In: Annales Geophysicae ; 27, no. 4
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2009
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| 19 |
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On the response of ionospheric electrojets to solar wind discontinuities
Palmroth, M.; Pulkkinen, T. I.; Polvi, J.; Viljanen, A.; Janhunen, P.
In: Annales Geophysicae ; 27, no. 10
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2009
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| 20 |
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Climatology of rapid geomagnetic variations at high latitudes over two solar cycles
Viljanen, A.; Tanskanen, E.
In: Annales Geophysicae ; 29, no. 10
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2011
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Sie haben gesucht nach VerfasserIn: 'Viljanen, A.', in der Datenbank: Bibliothekskatalog.
Anzahl der Treffer: 20
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