Journal : Acta Geophysica
Article : Solar energetic particle fluences from SOHO/ERNE

Authors :
Lilensten, J.
Laboratoire de Planétologie de Grenoble, OSUG-CNRS, Grenoble, France, jean.lilensten@obs.ujf-grenoble.fr,
Zuccarello, F.
Dipartimento di Fisica e Astronomia, Universitá di Catania, Catania, Italy, fzu@oact.inaf.it,
Zuccarello, F.
Dipartimento di Fisica e Astronomia, Universitá di Catania, Catania, Italy, fzu@oact.inaf.it,
Lundstedt, H.
Swedish Institute of Space Physics, Lund, Sweden, henrik@lund.irf.se,
Kretzschmar, M.
LPCE/CNRS, Orléans, France, matthieu.kretzschmar@cnrs-orleans.fr,
Contarino, L.
INAF Osservatorio Astrofisico di Catania, Catania, Italy, lcont@oact.inaf.it,
Messerotti, M.
INAF-Trieste Astronomical Observatory, Trieste, Italy, messerotti@oats.inaf.it,
Desorgher, L.
Physikalisches Institut, University of Bern, Bern, Switzerland, desorgher@space.unibe.ch,
Usoskin, I. G.
Sodankylä Geophysical Observatory, University of Oulu, Oulu, Finland, Ilya.Usoskin@oulu.fi,
Dudok de Wit, T.
LPCE, CNRS and University of Orléans, Orléans, France, ddwit@cnrs-orleans.fr,
Valtonen, E.
Space Research Laboratory, Department of Physics, University of Turku, Turku, Finland, Eino.Valtonen@utu.fi,
Abstract : We have calculated integral fluences of solar protons and helium nuclei at 19 energy thresholds between 1.6 and 90 MeV/n from the SOHO/ERNE measurements during the years 1996–2005. We have also calculated fluences of oxygen and iron in the energy range from 10 up to a few hundred MeV/n for nineteen solar energetic particle (SEP) events. These are the first results of the work aiming at a full employment of the ERNE data in investigating the fluence distributions of SEP events over the entire solar activity cycle 23 and in deriving the total dose received on-board SOHO during its mission. Some instrumental problems are identified and future developments are presented.

Keywords : space weather, particle fluences, solar energetic particles,
Publishing house : Instytut Geofizyki PAN
Publication date : 2009
Number : Vol. 57, no. 1
Page : 116 – 124

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DOI :
Qute : Lilensten, J. ,Zuccarello, F. ,Zuccarello, F. ,Lundstedt, H. ,Kretzschmar, M. ,Contarino, L. ,Messerotti, M. ,Desorgher, L. ,Usoskin, I. G. ,Dudok de Wit, T. ,Valtonen, E. ,Valtonen, E. , Solar energetic particle fluences from SOHO/ERNE. Acta Geophysica Vol. 57, no. 1/2009
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