SIC Publications
The following refereed papers have made use of the SIC model.
The names of the members of the SIC team are marked in bold font.
Furthermore, a large number of conference abstracts and proceedings
papers have been omitted from this list.
2021
- Miyoshi, Y., K. Hosokawa, S. Kurita, S.-I. Oyama, Y. Ogawa, S. Saito, I.
Shinohara, A. Kero, E. Turunen, P.T. Verronen, S.
Kasahara, S. Yokota, T. Mitani, T. Takashima, N. Higashio, Y. Kasahara, S.
Matsuda, F. Tsuchiya, A. Kumamoto, A. Matsuoka, T. Hori, K. Keika, M. Shoji,
M. Teramoto, S. Imajo, C. Jun, and S. Nakamura, Penetration of MeV electrons
into the mesosphere accompanying pulsating aurorae, Nature Sci. Rep., 11,
13724, 2021. doi: 10.1038/s41598-021-92611-3
- Xu, W., Marshall, R. A., Kero, A., and Sousa, A. (2021). Chemical
response of the upper atmosphere due to lightning-induced electron
precipitation. Journal of Geophysical Research: Atmospheres, 126,
e2021JD034914. https://doi.org/10.1029/2021JD034914
- Palmroth, M., Grandin, M., Sarris, T., Doornbos, E., Tourgaidis, S., Aikio,
A., Buchert, S., Clilverd, M.A., Dandouras, I., Heelis, R., Hoffmann, A.,
Ivchenko, N., Kervalishvili, G., Knudsen, D.J., Kotova, A., Liu, H.-L.,
Malaspina, D.M., March, G., Marchaudon, A., Marghitu, O., Matsuo, T., Miloch,
W.J., Moretto-Jorgensen, T., Mpaloukidis, D., Olsen, N., Papadakis, K., Pfaff,
R., Pirnaris, P., Siemes, C., Stolle, C., Suni, J., van den IJssel, J.,
Verronen, P.T., Visser, P., and Yamauchi, M., Lower
thermosphere-ionosphere (LTI) quantities: Current status of measuring
techniques and models, Ann. Geophys., 39, 189-237, 2021. doi:
10.5194/angeo-2020-42
2020
- Tesema, F., Partamies, N., Nesse Tyssøy, H., Kero, A., and
Smith-Johnsen, C., Observations of electron precipitation during pulsating
aurora and its chemical impact, J. Geophys. Res. Space, 125, e2019JA027713,
2020. doi: 10.1029/2019JA027713
2019
- Marshall RA, Xu W, Kero A, Kabirzadeh R and Sanchez E (2019)
Atmospheric Effects of a Relativistic Electron Beam Injected From Above:
Chemistry, Electrodynamics, and Radio Scattering. Front. Astron. Space Sci.
6:6. doi: 10.3389/fspas.2019.00006
2018
- Xu, W., Marshall, R. A., Fang, X., Turunen, E., and Kero, A.
(2018). On the effects of Bremsstrahlung radiation during energetic electron
precipitation. Geophysical Research Letters, 45, 1167– 1176.
https://doi.org/10.1002/2017GL076510
- Newnham, D.A., M.A. Clilverd, C.J. Rodger, K. Hendrickx, L. Megner, A.J.
Kavanagh, A. Seppälä, P.T. Verronen, M.E. Andersson, D.R. Marsh, T.
Kovács, W. Feng, and J.M.C. Plane, Observations and modelling of increased
nitric oxide in the Antarctic polar middle atmosphere associated with
geomagnetic storm driven energetic electron precipitation, J. Geophys. Res.
Space, 123, 6009-6025, 2018. doi: 10.1029/2018JA025507
- Seppälä, A., E. Douma, C.J. Rodger, P.T. Verroneni, M.A.
Clilverd, and J. Bortnik, Electron microburst events: modeling the atmospheric
impact, Geophys. Res. Lett., 45, 2018. doi: 10.1002/2017GL075949
2017
- Sivadas, N., Semeter, J., Nishimura, Y., and Kero, A. (2017).
Simultaneous measurements of substorm-related electron energization in the
ionosphere and the plasma sheet. Journal of Geophysical Research: Space
Physics, 122, 10,528– 10,547. https://doi.org/10.1002/2017JA023995
- Grandin, M., A. Kero, N. Partamies, D. McKay, D. Whiter, A.
Kozlovsky, and Y. Miyoshi, Observation of pulsating aurora signatures in cosmic
noise absorption data, Geophys. Res. Lett., 44, 5292-5300, 2017. doi:
10.1002/2017GL073901
2016
- Kovács, T., Plane, J. M. C., Feng, W., Nagy, T., Chipperfield, M. P.,
Verronen, P. T., Andersson, M. E., Newnham, D. A., Clilverd, M.
A., and Marsh, D. R.: D-region ion–neutral coupled chemistry (Sodankylä Ion
Chemistry, SIC) within the Whole Atmosphere Community Climate Model (WACCM 4) –
WACCM-SIC and WACCM-rSIC, Geosci. Model Dev., 9, 3123–3136,
https://doi.org/10.5194/gmd-9-3123-2016, 2016.
- Baumann, C., M. Rapp, and A. Kero. Secondary electron emission from
meteoric smoke particles inside the polar ionosphere. Annales Geophysicae,
34(6):573-580,2016
- Rogers, N.C., Kero, A., Honary, F., Verronen, P.T.,
Warrington, E.M. and Danskin, D.W., Improving the twilight model for polar cap
absorption nowcasts, Space Weather, 14, 2016. doi: 10.1002/2016SW001527
- Verronen, P.T., Andersson, M.E., Marsh, D.R., Kovács, T. and Plane,
J.M.C., WACCM-D – Whole Atmosphere Community Climate Model with D-region ion
chemistry, J. Adv. Model. Earth Syst., 8, 954–975,
http://dx.doi.org/10.1002/2015MS000592, 2016.
- Turunen, E., Kero, A., Verronen, P.T., Miyoshi, Y., Oyama, S. and
Saito, S., Mesospheric ozone destruction by high-energy electron precipitation
associated with pulsating aurora, J. Geophys. Res. Atmos., 121, 11852-11861,
2016. doi: 10.1002/2016JD025015
- Clilverd, M.A., C. J. Rodger, M. E. Andersson, P. T. Verronen, and A.
Seppälä, Linkages between the radiation belts, polar atmosphere and
climate: electron precipitation through wave particle interactions, chapter in
book Waves, Particles and Storms in Geospace, edited by G. Balasis, I. A.
Daglis, and I. R. Mann, Oxford University Press, ISBN: 9780198705246,
2016.
2015
- Verronen, P.T. and Lehmann, R., Enhancement of odd nitrogen modifies
mesospheric ozone chemistry during polar winter, Geophys. Res. Lett., 42,
10445–10452, http://dx.doi.org/10.1002/2015GL066703, 2015.
- Baumann, C., M. Rapp, M. Anttila, A. Kero, and P. T.
Verronen, Effects of meteoric smoke particles on the D-region
ion-chemistry, J. Geophys. Res., 120, 2015. doi: 10.1002/2015JA021927
- Clilverd, M. A., R. Duthie, R. Hardman, A. T. Hendry, C. J. Rodger, T.
Raita, M. Engebretson, M. R. Lessard, D. Danskin, and D. K. Milling,
Electron precipitation from EMIC waves: a case study from 31 May 2013, J.
Geophys. Res., 120, 3618-3631, 2015. doi: 10.1002/2015JA021090
- Neal, J. J., C. J. Rodger, M. A. Clilverd, N. R. Thomson, T. Raita,
and Th.Ulich, Long-term determination of energetic electron
precipitation into the atmosphere from AARDDVARK subionospheric VLF
observations, J. Geophys. Res., 120, 2194-2211, 2015. doi:
10.1002/2014JA020689
- Seppälä, A., M. A. Clilverd, M. J. Beharrell, C. J. Rodger, P. T.
Verronen, M. E. Andersson and D. A. Newnham, Substorm-induced energetic
electron precipitation: Impact on atmospheric chemistry, Geophys. Res. Lett.,
42, 2015. doi: 10.1002/2015GL065523
- Miyoshi, Y., S. Oyama, S. Saito, S. Kurita, H. Fujiwara, R. Kataoka, Y.
Ebihara, C. Kletzing, G. Reeves, O. Santolik, M. Clilverd, C. J. Rodger, E.
Turunen, and F. Tsuchiya, Energetic electron precipitation associated with
pulsating aurora: EISCAT and Van Allen Probe observations, J. Geophys. Res.
Space Physics, 120, 2015. doi: 10.1002/2014JA020690
- Verronen, P.T., Andersson, M.E., Kero, A., Enell, C.-F., Wissing,
J.M., Talaat, E.R., Kauristie, K., Palmroth, M., Sarris, T.E. and Armandillo,
E., Contribution of proton and electron precipitation to the observed electron
concentration in October-November 2003 and September 2005, Ann. Geophys., 33,
381-394, 2015. doi: 10.5194/angeo-33-381-2015
2014
- Kero, A., J. Vierinen, D. McKay-Bukowski, C.-F. Enell, M.
Sinor, L. Roininen, and Y. Ogawa, Ionospheric electron density profiles
inverted from a spectral riometer measurement, Geophys. Res. Lett., 41,
2014. doi: 10.1002/2014GL060986
- Andersson, M.E., Verronen, P.T., Rodger, C.J., Clilverd, M.A., and
Wang S., Longitudinal hotspots in the mesospheric OH variations due to
energetic electron precipitation, Atmos. Chem. Phys., 14, 1095-1105, 2014. doi:
10.5194/acp-14-1095-2014
2013
- Verronen, P.T. and Lehmann, R., Analysis and parameterisation of
ionic reactions affecting middle atmospheric HOx and NOy during solar proton
events, Ann. Geophys., 31, 909–956,
http://dx.doi.org/10.5194/angeo-31-909-2013, 2013.
- Baumann, C., Rapp, M., Kero, A., and Enell, C.-F., Meteor
smoke influences on the D-region charge balance - review of recent in situ
measurements and one-dimensional model results, Ann. Geophys., 31, 2049-2062,
2013. doi: 10.5194/angeo-31-2049-2013
- Verronen, P.T., Andersson, M.E., Rodger, C.J., Clilverd, M.A., Wang
S., and Turunen, E., Comparison of modeled and observed effects of
radiation belt electron precipitation on mesospheric hydroxyl and ozone, J.
Geophys. Res., 118, 11419-11428, 2013. doi: 10.1002/jgrd.50845
- Cresswell-Moorcock, K., C. J. Rodger, A. Kero, A. B. Collier, M. A.
Clilverd, I. Häggström, and T. Pitkänen, A reexamination of latitudinal limits
of substorm-produced energetic electron precipitation, J. Geophys. Res., 118,
2013. doi: 10.1002/jgra.50598
- Newnham D. A., P. J. Espy, M. A. Clilverd, C. J. Rodger, A.
Seppälä, D. J. Maxfield, P. Hartogh, K. Holmen, and R. B. Horne,
Observations of nitric oxide in the Antarctic middle atmosphere during
recurrent geomagnetic storms, J. Geophys. Res., 118, 2013. doi:
10.1002/2013JA019056
2012
- Andersson, M. E., Verronen, P. T., Wang S., Rodger, C. J., Clilverd,
M. A., and Carson, B. R., Precipitating radiation belt electrons and
enhancements of mesospheric hydroxyl during 2004-2009, J. Geophys. Res., 117,
D09304, 2012. doi: 10.1029/2011JD017246
- Rodger, C. J., Clilverd, M. A., Kavanagh, A. J., Watt, C. E. J.,
Verronen, P. T. and Raita, T., Contrasting the responses of three
different ground-based instruments to energetic electron precipitation,, Radio
Sci., 47, RS2021, 2012. doi: 10.1029/2011RS004971
2011
- Verronen, P.T., Santee, M.L., Manney, G.L., Lehmann, R., Salmi,
S.-M., and Seppälä, A., Nitric Acid Enhancements in the Mesosphere
During the January 2005 and December 2006 Solar Proton Events, J. Geophys.
Res., 116, D17301, http://dx.doi.org/10.1029/2011JD016075, 2011.
- C.-F. Enell, B. Gustavsson, B. U. E. Brändström, T. Sergienko, P.
T. Verronen, P. Rydesäter, and I. Sandahl, Tomography-like retrieval of
auroral volume emission ratios for the 20080131 Hotel Payload 2 event, Geosci.
Instrum. Method. Data Syst. Discuss., 2, 1-21, 2011. doi:
10.5194/gid-2-1-2012
- Newnham, D., Espy, P., Clilverd, M. A., Rodger, C.J., Seppälä, A.,
Maxfield, D., Hartogh, P., Holmen, K., and Horne, R., Direct observations of
nitric oxide produced by energetic electron precipitation into the Antarctic
middle atmosphere, Geophys. Res. Lett., 38, L20104, 2011.
2010
- Clilverd, M. A., C. J. Rodger, S. Dietrich, T. Raita, Th.Ulich, E.
Clarke, A. W. P. Thomson, and A. J. Kavanagh, High-latitude geomagnetically
induced current events observed on very low frequency radio wave receiver
systems., Radio Sci., 45, RS2006 1-11, 2010.
- Clilverd, M.A., C. J. Rodger, R. Gamble, Th.Ulich, T. Raita, A.
Seppälä, J. Green, N. Thomson, J-A Sauvaud, M. Parrot, Ground-based
estimates of outer radiation belt energetic electron precipitation fluxes into
the atmosphere, J. Geophys. Res., 115, A12304 1-11, 2010.
- Rodger C. J., Clilverd M. A., Seppälä A., Thomson N. R., Gamble R.
J., Parrot M., Sauvaud J., Ulich Th, Radiation belt electron
precipitation due to geomagnetic storms: Significance to middle atmosphere
ozone chemistry, J. Geophys., 115, A11320 1-12, 2010.
2009
- Clilverd, M. A., A. Seppälä, C. J. Rodger, M. G. Mlynczak, and J. U.
Kozyra, Additional stratospheric NOx production by relativistic electron
precipitation during the 2004 spring NOx descent event, J. Geophys. Res., 114,
A04305, 2009. doi: 10.1029/2008JA013472
- Clilverd, M. A., C. J. Rodger, N. R. Thomson, J. B. Brundell, Th.
Ulich, J. Lichtenberger, N. Cobbett, A. B. Collier, F. W. Menk, A.
Seppälä, P. T. Verronen, and E. Turunen, Remote sensing space
weather events: the AARDDVARK network, Space Weather, 7, S04001, 2009. doi:
10.1029/2008SW000412
- Turunen, E., P. T. Verronen, A. Seppälä, C. J. Rodger, M. A.
Clilverd, J. Tamminen, C.-F. Enell and Th.Ulich, Impact of
different precipitation energies on NOx generation during geomagnetic storms,
J. Atmos Sol.-Terr. Phys, 71, 1176-1189, 2009. doi:
10.1016/j.jastp.2008.07.005
2008
- Verronen, P.T., B. Funke, M. Lopez-Puertas, G. B. Stiller, T. von
Clarmann, N. Glatthor, C.-F. Enell, E. Turunen and J. Tamminen, About
the increase of HNO3 in the stratopause region during the Halloween 2003 solar
proton event, Geophys. Res. Lett., 35, L20809, 2008. doi:
10.1029/2008GL035312
- Kero, A., C.-F. Enell, A. J. Kavanagh, J. Vierinen, I. Virtanen, and
E. Turunen, Could negative ion production explain the polar mesosphere
winter echo (PMWE) modulation in active HF heating experiments?, Geophys. Res.
Lett., 35, L23102, 2008. doi: 10.1029/2008GL035798
- Kero, A., Ionospheric D-region studies by means of active heating
experiments and modelling, PhD thesis, University of Oulu, Sodankylä
Geophysical Observatory Publications, No. 102, 2008.
- Rodger, C. J., P. T. Verronen, M. A. Clilverd, A. Seppälä,
and E. Turunen, Significance of the Carrington Event Solar Proton Event
to the neutral atmosphere, J. Geophys. Res., 113, D23302, 2008. doi:
10.1029/2008JD010702
- Seppälä, A., M. A. Clilverd, C. J. Rodger, P. T. Verronen,
and E. Turunen, The Effects of Hard Spectra Solar Proton Events on the
Middle Atmosphere, J. Geophys. Res., 113, A11311, 2008. doi:
10.1029/2008JA013517
- Neubert, T., M. Rycroft, T. Farges, E. Blanc, O. Chanrion, E. Arnone, A.
Odzimek, N. Arnold, C.-F. Enell, E. Turunen, T. Bösinger, Á. Mika, C.
Haldoupis, R. J. Steiner, O. van der Velde, S. Soula, P. Berg, F. Boberg, P.
Thejll, B. Christiansen, M. Ignaccolo, M. Füllekrug, P. T. Verronen, J.
Montanya, and N. Crosby, Recent results from studies of electric discharges in
the mesosphere, Surveys in Geophysics, vol. 29, no. 2, pp. 71-137, 2008. doi:
10.1007/s10712-008-9043-1
- Kero, A., J. Vierinen, C.-F. Enell, I. Virtanen, and E.
Turunen, New incoherent scatter diagnostic methods for the heated D-region
ionosphere, Ann. Geophys., 26, 2273-2279, 2008.
- Enell, C.-F., P. T. Verronen, M. J. Beharrell, J. P.
Vierinen, A. Kero, A. Seppälä, F. Honary, Th.Ulich, and
E. Turunen, Case study of the mesospheric and lower thermospheric
effects of solar x-ray flares: Coupled ion-neutral modelling and comparison
with EISCAT and riometer measurements, Ann. Geophys., 26, 2311-2321, 2008.
- Rodger, C. J., T. Raita, M. A. Clilverd, A. Seppälä, S. Dietrich, N.
R. Thomson, and Th.Ulich, Observations of relativistic electron
precipitation from the radiation belts driven by EMIC Waves, Geophys. Res.
Lett., 35, L16106, 2008. doi: 10.1029/2008GL034804
- Rodger, C. J, A. Seppälä, and M. A. Clilverd, Significance of
Transient Luminous Events to Neutral Chemistry: Experimental Measurements,
Geophys. Res. Lett., 35, L07803, 2008. doi: 10.1029/2008GL033221
- Enell, C.-F., E. Arnone, T. Adachi, O. Chanrion, P. T. Verronen,
A. Seppälä, T. Neubert, Th.Ulich, E. Turunen, Y.
Takahashi, and R.-R. Hsu, Parameterisation of the chemical effect of sprites in
the middle atmosphere, Ann. Geophys., 26, 13-27, SRef-ID:
1432-0576/angeo/2008-26-13, 2008.
2007
- Clilverd, M. A., C. J. Rodger, R. M. Millan, J. G. Sample, M. Kokorowski,
M. P. McCarthy, Th.Ulich, T. Raita, A. J. Kavanagh, and E. Spanswick,
Energetic particle precipitation into the middle atmosphere triggered by a
coronal mass ejection, J. Geophys. Res., 112, A11210, 2007. doi:
10.1029/2007JA012395
- Kero, A., C.-F. Enell, Th.Ulich, E. Turunen, M. T. Rietveld, and F.
H. Honary, Statistical signature of active D-region HF heating in IRIS riometer
data from 1994-2004,, Ann. Geophys., 25, 407-415, 2007.
- Seppälä, A., Observations of production and transport of NOx
formed by energetic particle precipitation in the polar night atmosphere,
PhD thesis, University of Helsinki, Finnish Meteorological Institute
Contributions, No. 62, 2007.
- Clilverd, M. A., Seppälä, A., Rodger, C. J., Thomson N.R.,
Lichtenberger, J., and Steinbach, P., Temporal variability of the descent of
high-altitude NOx, J. Geophys. Res., 112, A09307, 2007. doi:
10.1029/2006JA012085
- Clilverd, M.A., Rodger, C.J., Moffat-Griffin, T. and Verronen, P.T.,
Improved dynamic geomagnetic rigidity cutoff modeling: testing predictive
accuracy, J. Geophys. Res., 112, A08302, 2007. doi: 10.1029/2007JA012410
- Rodger, C.J., Clilverd, M.A., Nunn, D., Verronen, P.T., Bortnik, J.
and Turunen, E., Storm time, short-lived bursts of relativistic electron
precipitation detected by subionospheric radio wave propagation, J. Geophys.
Res., Vol. 112, A07301, 2007. doi: 10.1029/2007JA012347
- Rodger, C.J., Enell, C.-F., Turunen, E., Clilverd, M.A., Thomson,
N.R., and Verronen, P.T., Lightning-driven inner radiation belt energy
deposition into the atmosphere: Implications for ionisation-levels and neutral
chemistry, Ann. Geophys., 25, 1745-1757, 2007.
- Rodger, C.J., M. A. Clilverd, N. R. Thomson, R. J. Gamble, A. Seppälä,
E. Turunen, N. P. Meredith, M. Parrot, J. Sauvaud, and J. Berthelier,
Radiation belt electron precipitation into the atmosphere: recovery from a
geomagnetic storm, J. Geophys. Res., 112, A11307, 2007. doi:
10.1029/2007JA012383
- Seppälä, A., Clilverd, M. A., and Rodger, C. J., NOx enhancements in
the middle atmosphere during 2003-2004 polar winter: The relative significance
of Solar Proton Events and the Aurora as a source, J. Geophys. Res., 112,
D23303, 2007. doi: 10.1029/2006JD008326
- Seppälä, A., Verronen, P.T., Clilverd, M.A., Randall, C.E.,
Tamminen, J., Sofieva, V., Backman, L., and Kyrölä, E., Arctic and Antarctic
polar winter NOx and energetic particle precipitation in 2002-2006, Geophys.
Res. Lett.,, Vol. 34, No. 12, L12810, 2007. doi: 10.1029/2007GL029733
- Verronen, P.T., Rodger, C.J., Clilverd, M.A., Pickett, H.M. and
Turunen, E., Latitudinal extent of the January 2005 solar proton event
in the Northern Hemisphere from satellite observations of hydroxyl, Ann.
Geophys., Vol.25, pp. 2203-2215,
http://direct.sref.org/1432-0576/angeo/2007-25-2203, 2007.
2006
- Verronen, P.T., Seppälä, A., Kyrölä, E., Tamminen, J., Pickett, H.M.
and Turunen, E., Production of Odd Hydrogen in the Mesosphere During the
January 2005 Solar Proton Event, Geophys. Res. Lett., 33, 24, L24811, 2006.
doi: 10.1029/2006GL028115
- Clilverd, M.A., Seppälä, A., Rodger, C. J., Thomson, N.R.,
Verronen, P., Turunen, E., Ulich, Th., Lichtenberger, J.,
and Stienbach, P., Modeling polar ionospheric effects during the
October-November 2003 solar proton events., Radio Sci., 41, RS2001, 2006. doi:
10.1029/2005RS003290
- Clilverd, M A, Seppälä, A, Rodger, C J, Verronen, P T,
Thomson, N R, Ionospheric evidence of thermosphere-to-stratosphere descent of
polar NOx, Geophys. Res. Lett., Vol. 33, No. 19, L19811, 2006. doi:
10.1029/2006GL026727
- Rodger, C.J., Clilverd, M.A., Ulich, Th., Verronen, P.T., Turunen,
E., Thomson, N.R., The Atmospheric Implications of Radiation Belt
Remediation, Ann. Geophys., 24, 2025-2041, SRef-ID: 1432-0576/ag/2006-24-2025,
2006.
- Rodger, C.J., Clilverd, M.A., Verronen, P.T., Ulich, Th., Jarvis,
M.J. and Turunen, E., Dynamic geomagnetic rigidity cutoff variations
during a solar proton event, J. Geophys. Res., 111, A04222, 2006. doi:
10.1029/2005JA011395
- Seppälä, A., P.T. Verronen, V.F. Sofieva, J. Tamminen, E. Kyrölä, C.
J. Rodger, and M.A. Clilverd, Destruction of the Tertiary Ozone Maximum During
a Solar Proton Event, Geophys. Res. Lett., 33, L07804, 2006. doi:
10.1029/2005GL025571
- Verronen, P.T., Ulich, Th., Turunen, E., and Rodger, C.J., Sunset
transition of negative charge in the D-region ionosphere during high-ionization
conditions, Ann. Geophys., 24, 187-202, 2006.
- Verronen, P.T., Ionosphere-Atmosphere Interaction During Solar
Proton Events, PhD thesis, University of Helsinki, Finnish Meteorological
Institute Contributions, No. 55, 2006.
2005
- Clilverd, M. A., C. J. Rodger, Th.Ulich, A. Seppälä, E. Turunen, A.
Botman, N. R. Thomson, Modelling a large solar proton event in the southerns
polar atmosphere, J. Geophys. Res., 110, A09307,
doi:10.1029/2004JA010922, 2005.
- Verronen, P. T., A. Seppälä, M. A. Clilverd, C. J. Rodger, E.
Kyrölä, C.-F. Enell, Th.Ulich, E. Turunen, Diurnal variation of ozone
depletion during the October-November 2003 solar proton events, J. Geophys.
Res., 110, A09S32, doi:10.1029/2004JA010932, 2005.
- Enell, C.-F., A. Kero, E. Turunen, Th.Ulich, P. Verronen, A.
Seppälä, S. Marple, F. Honary, A. Senior, Effects of D-region RF heating
studied with the Sodankylä Ion Chemistry model, Ann. Geophys., 23,
1575–1583, 2005.
2002
- Verronen, P. T., E. Turunen, Th.Ulich, E. Kyrölä, Modelling the
effects of the October 1989 solar proton event on mesospheric NO using a
detailed ion and neutral chemistry model, Ann. Geophys., 20,
1967-1976, 2002.
2001
- Ulich, Th., E. Turunen, A. Karinen, Global Change and Changing Upper
Atmosphere -Observations, in "Long-term Changes and Trends in the Atmosphere",
ed. G. Beig, Pune, India, 2001, (solicited review).
2000
- Ulich, Th., E. Turunen, T. Nygrén, The Effective Recombination
Coefficient in the Lower Ionosphere During Localised Precipitation of Auroral
Electrons, Adv. Space Res., 25, 47-50, 2000.
1999
- Ulich, Th., E. Turunen, A. Karinen, R. Kivi, E. Kyrö, Atmospheric
Trends Above Finland: I. Mesosphere and Thermosphere, Geophysica, 35,
59-69, 1999.
- del Pozo, C. F., E. Turunen, Th.Ulich, Negative Ions in the Auroral
Mesosphere During Strong Ion Precipitation Events, Ann. Geophys., 17,
782-793, 1999.
1996
- Rietveld, M. T., E. Turunen, H. Matveinen, N. P. Goncharov, P.
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1992
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1991
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