TY  - JOUR
A1  - Vainio, Rami
A1  - Valtonen, Eino
A1  - Heber, Bernd
A1  - Malandraki, Olga E.
A1  - Papaioannou, Athanasios
A1  - Klein, Karl-Ludwig
A1  - Afanasiev, Alexander
A1  - Agueda, Neus
A1  - Aurass, Henry
A1  - Battarbee, Markus
A1  - Braune, Stephan
A1  - Dröge, Wolfgang
A1  - Ganse, Urs
A1  - Hamadache, Clarisse
A1  - Heynderickx, Daniel
A1  - Huttunen-Heikinmaa, Kalle
A1  - Kiener, Jürgen
A1  - Kilian, Patrick
A1  - Kopp, Andreas
A1  - Kouloumvakos, Athanasios
A1  - Maisala, Sami
A1  - Mishev, Alexander
A1  - Miteva, Rosita
A1  - Nindos, Alexander
A1  - Oittinen, Tero
A1  - Raukunen, Osku
A1  - Riihonen, Esa
A1  - Rodriguez-Gasen, Rosa
A1  - Saloniemi, Oskari
A1  - Sanahuja, Blai
A1  - Scherer, Renate
A1  - Spanier, Felix
A1  - Tatischeff, Vincent
A1  - Tziotziou, Kostas
A1  - Usoskin, Ilya G.
A1  - Vilmer, Nicole
T1  - The first SEPServer event catalogue similar to ~68-MeV solar proton events observed at 1 AU in 1996-2010
JF  - Journal of Space Weather and Space Climate
N2  - SEPServer is a three-year collaborative project funded by the seventh framework programme (FP7-SPACE) of the European Union. The objective of the project is to provide access to state-of-the-art observations and analysis tools for the scientific community on solar energetic particle (SEP) events and related electromagnetic (EM) emissions. The project will eventually lead to better understanding of the particle acceleration and transport processes at the Sun and in the inner heliosphere. These processes lead to SEP events that form one of the key elements of space weather. In this paper we present the first results from the systematic analysis work performed on the following datasets: SOHO/ERNE, SOHO/EPHIN, ACE/EPAM, Wind/WAVES and GOES X-rays. A catalogue of SEP events at 1 AU, with complete coverage over solar cycle 23, based on high-energy (similar to 68-MeV) protons from SOHO/ERNE and electron recordings of the events by SOHO/EPHIN and ACE/EPAM are presented. A total of 115 energetic particle events have been identified and analysed using velocity dispersion analysis (VDA) for protons and time-shifting analysis (TSA) for electrons and protons in order to infer the SEP release times at the Sun. EM observations during the times of the SEP event onset have been gathered and compared to the release time estimates of particles. Data from those events that occurred during the European day-time, i.e., those that also have observations from ground-based observatories included in SEPServer, are listed and a preliminary analysis of their associations is presented. We find that VDA results for protons can be a useful tool for the analysis of proton release times, but if the derived proton path length is out of a range of 1 AU < s less than or similar to 3 AU, the result of the analysis may be compromised, as indicated by the anti-correlation of the derived path length and release time delay from the associated X-ray flare. The average path length derived from VDA is about 1.9 times the nominal length of the spiral magnetic field line. This implies that the path length of first-arriving MeV to deka-MeV protons is affected by interplanetary scattering. TSA of near-relativistic electrons results in a release time that shows significant scatter with respect to the EM emissions but with a trend of being delayed more with increasing distance between the flare and the nominal footpoint of the Earth-connected field line.
KW  - radio emissions (dynamic)
KW  - projects
KW  - advanced composition explorer
KW  - wind spacecraft
KW  - stereo mission
KW  - alpha monitor
KW  - electron
KW  - plasma
KW  - radio
KW  - spectrometer
KW  - heliosphere
KW  - instrument
KW  - radiation
KW  - flares
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-122847
SN  - 2115-7251
VL  - 3
IS  - A12
ER  -