Thomas Ulich
Thomas Ulich
Head of Observations, Sodankylä Geophysical Observatory, University of Oulu
Bestätigte E-Mail-Adresse bei sgo.fi - Startseite
Titel
Zitiert von
Zitiert von
Jahr
Impact of different energies of precipitating particles on NOx generation in the middle and upper atmosphere during geomagnetic storms
E Turunen, PT Verronen, A Seppälä, CJ Rodger, MA Clilverd, ...
Journal of Atmospheric and Solar-Terrestrial Physics 71 (10-11), 1176-1189, 2009
1662009
Diurnal variation of ozone depletion during the October–November 2003 solar proton events
PT Verronen, A Seppälä, MA Clilverd, CJ Rodger, E Kyrölä, CF Enell, ...
Journal of Geophysical Research: Space Physics 110 (A9), 2005
1532005
Evidence for long‐term cooling of the upper atmosphere in ionosonde data
T Ulich, E Turunen
Geophysical Research Letters 24 (9), 1103-1106, 1997
1531997
Emerging pattern of global change in the upper atmosphere and ionosphere
J Laštovička, RA Akmaev, G Beig, J Bremer, JT Emmert, C Jacobi, ...
Annales Geophysicae 26 (5), 1255-1268, 2008
1272008
Long-term trends in foF2: A comparison of various methods
J Laštovička, AV Mikhailov, T Ulich, J Bremer, AG Elias, NO de Adler, ...
Journal of Atmospheric and Solar-Terrestrial Physics 68 (17), 1854-1870, 2006
1132006
Observations of relativistic electron precipitation from the radiation belts driven by EMIC waves
CJ Rodger, T Raita, MA Clilverd, A Seppälä, S Dietrich, NR Thomson, ...
Geophysical Research Letters 35 (16), 2008
982008
Remote sensing space weather events: Antarctic‐Arctic radiation‐belt (dynamic) deposition‐VLF atmospheric research Konsortium network
MA Clilverd, CJ Rodger, NR Thomson, JB Brundell, T Ulich, ...
Space Weather 7 (4), 2009
902009
Predicting solar cycle 24 and beyond
MA Clilverd, E Clarke, T Ulich, H Rishbeth, MJ Jarvis
Space weather 4 (9), 2006
722006
World-wide lightning location using VLF propagation in the Earth-ionosphere waveguide
RL Dowden, RH Holzworth, CJ Rodger, J Lichtenberger, NR Thomson, ...
IEEE Antennas and Propagation Magazine 50 (5), 40-60, 2008
692008
Semiannual and annual variations in the height of the ionospheric F2-peak
H Rishbeth, KJF Sedgemore-Schulthess, T Ulich
Annales Geophysicae 18 (3), 285-299, 2000
652000
Ground‐based estimates of outer radiation belt energetic electron precipitation fluxes into the atmosphere
MA Clilverd, CJ Rodger, RJ Gamble, T Ulich, T Raita, A Seppälä, ...
Journal of Geophysical Research: Space Physics 115 (A12), 2010
522010
Ground‐based estimates of outer radiation belt energetic electron precipitation fluxes into the atmosphere
MA Clilverd, CJ Rodger, RJ Gamble, T Ulich, T Raita, A Seppälä, ...
Journal of Geophysical Research: Space Physics 115 (A12), 2010
522010
Dynamic geomagnetic rigidity cutoff variations during a solar proton event
CJ Rodger, MA Clilverd, PT Verronen, T Ulich, MJ Jarvis, E Turunen
Journal of Geophysical Research: Space Physics 111 (A4), 2006
522006
Reconstructing the long‐term aa index
MA Clilverd, E Clarke, T Ulich, J Linthe, H Rishbeth
Journal of Geophysical Research: Space Physics 110 (A7), 2005
522005
The causes of long‐term change in the aa index
MA Clilverd, TDG Clark, E Clarke, H Rishbeth, T Ulich
Journal of Geophysical Research: Space Physics 107 (A12), SSH 4-1-SSH 4-7, 2002
512002
Modification of midlatitude ionospheric parameters in the F2 layer by persistent high‐speed solar wind streams
MH Denton, T Ulich, E Turunen
Space Weather 7 (4), 2009
462009
Ground-based instruments of the PWING project to investigate dynamics of the inner magnetosphere at subauroral latitudes as a part of the ERG-ground coordinated observation network
K Shiokawa, Y Katoh, Y Hamaguchi, Y Yamamoto, T Adachi, M Ozaki, ...
Earth, Planets and Space 69 (1), 1-21, 2017
432017
KAIRA: The Kilpisjärvi atmospheric imaging receiver array—System overview and first results
D McKay-Bukowski, J Vierinen, II Virtanen, R Fallows, M Postila, T Ulich, ...
IEEE Transactions on Geoscience and Remote Sensing 53 (3), 1440-1451, 2014
432014
Energetic particle precipitation into the middle atmosphere triggered by a coronal mass ejection
MA Clilverd, CJ Rodger, RM Millan, JG Sample, M Kokorowski, ...
Journal of Geophysical Research: Space Physics 112 (A12), 2007
432007
Solar activity levels in 2100
MA Clilverd, E Clarke, H Rishbeth, TDG Clark, T Ulich
Astronomy & Geophysics 44 (5), 5.20-5.22, 2003
402003
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