Athanasios Papaioannou

Associate Researcher

Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing IAASARS

National Observatory of Athens | NOA

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Curriculum Vitae

I received my B. Sc. in Physics (2005), my M. Sc. in Nuclear & Particle Physics (2007) and my Ph.D. in Physics (2012) by the Department of Physics of the National & Kapodistrian University of Athens, Greece.

Since then I worked as a Post-doctoral Researcher at the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing (IAASARS) of the National Observatory of Athens and at the National & Kapodistrian University of Athens. I have been a Visiting Researcher at the Christian-Albrechts-Universitat zu Kiel (Germany), the University of Turku (Finland), the Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation by N.V. Pushkov RAS (IZMIRAN) (Russia) and at the Universitat de Barcelona (Spain).

In 2018 I was elected as an Associate Researcher at IAASARS/NOA .

I have co-authored 51 papers published in refereed journals which have received ~1100+ citations, h-index=20 (source Google Scholar). A complete list of my papers is available here.

My brief CV is available as a PDF file here, while an extended CV can be found here. My researcherID is K-7065-2013 and my Google Scholar record is here .

Research Interests

Space and Plasma Physics. Cosmic rays (CRs) of both galactic (GCRs) and solar (SCRs) origin.

Large scale structures (Interplanetary Coronal Mass Ejections - ICMEs) their interaction with GCRs and the resulting Forbush decreases (FDs).

Solar Energetic Particle (SEP) Events analysis and interpretation using ACE, Ulysses, STEREO and GOES observations. Analysis and interpretation of SCRs measurements resulting at Ground Level Enhancement (GLE) events.

Exploring the connection chain of ICMEs, FDs and Geomagnetic effects/storms.

Development of forecasting systems focused at Space Storms and Space Weather with emphasis on data driven models.

Application of multivariate and machine learning approaches for the assessment of Space Weather conditions.

CRs and the environment focusing at radiation effects, calculating doses onboard flights and Single Event Effects (SEEs) on microelectronics.

Global Electric Circuit (GEC) and the contribution of CRs ionization to the atmospheric electricity.


In Refereed Journals

2021 [5]

[51] E. Lavasa, G. Giannopoulos, A. Papaioannou, A. Anastasiadis, I.A.Daglis, A. Aran, D. Pacheco and B. Sanahuja: Assesing the predictability of Solar Energetic Particles with the use of Machine Learning techniques, Solar Physics, accepted, 2021
[50] J. L. Freiherr von Forstner, M. Dumbovic, C. Möstl, J. Guo, A. Papaioannou, et al.,, Radial Evolution of the April 2020 Stealth Coronal Mass Ejection between 0.8 and 1 AU: A Comparison of Forbush Decreases at Solar Orbiter and Earth, Astron. Astrophys., DOI:10.1051/0004-6361/202039848, 2021 | available here
[49] A. Belov, A. Papaioannou, M. Abunina, M. Dumbovic, I. G. Richardson, B. Heber, P. Kühl, K. Herbst, A. Anastasiadis, A. Vourlidas, E. Eroshenko, A. Abunin: On the Rigidity Spectrum of Cosmic Ray Variations within Propagating Interplanetary Disturbances: Neutron Monitor and SOHO/EPHIN observations at ~1-10 GV, Astrophys. J., DOI: 10.3847/1538-4357/abd724, 908, 5, 2021 | available here
[48] K. Herbst, A. Papaioannou, V. S. Airapetian, and D. Atri: From Starspots to Stellar Coronal Mass Ejections - Revisiting Empirical Stellar Relations, Astrophys. J., 907, 89, DOI:10.3847/1538-4357/abcc04, 2021 | available here
[47] E. Paouris, J. Calogovic, M. Dumbovic, M. L. Mays, A. Vourlidas, A. Papaioannou, A. Anastasiadis, G. Balasis: Propagating conditions and the time of ICMEs arrival: A Comparison of the Effective Acceleration Model with ENLIL and DBEM modes, Solar Physics, 296:12, DOI:10.1007/s11207-020-01747-4, 2021 | available here

2020 [7]

[46] E. Paouris, A. Vourlidas, A. Papaioannou, A. Anastasiadis: Assessing the projection correction of Coronal Mass Ejection speeds on Time-of-Arrival prediction performance using the Effective Acceleration Model, Space Weather, DOI:10.1029/2020SW002617, 2020 | available here
[45] I. Zouganelis, A. De Groof, A. P. Walsh, D. R. Williams, D. Müller, O. C. St Cyr et al.: The Solar Orbiter Science Activity Plan: translating solar and heliospheric physics questions into action, Astron. Astrophys., 642, A3, DOI: 10.1051/0004-6361/202038445, 2020 | available here
[44] A. Kouloumvakos, A.P. Rouillard, G. H. Share, I. Plotnikov, R. Murphy, A. Papaioannou, Y. Wu, Evidence for a Coronal Shock Wave Origin for Relativistic Protons Producing Solar Gamma-Rays and Observed by Neutron Monitors at Earth, Astrophys. J., 893, 76, DOI:10.3847/1538-4357/ab8227, 2020 | available here
[43] J. L. Freiherr von Forstner, J. Guo, R. F. Wimmer-Schweingruber, M. Dumbovic, M. Janvier, P. Démoulin, A. Veronig, M. Temmer, A. Papaioannou, S. Dasso, D. M. Hassler, C. J. Zeitlin, Comparing the Properties of ICME-Induced Forbush decreases at Earth and Mars, J. Geophys. Res., DOI:10.1029/2019JA027662, 2020 | available here
[42] A. Papaioannou, A. Belov, M. Abunina, E. Eroshenko, A. Abunin, A. Anastasiadis, S. Patsourakos, H. Mavromichalaki, Interplanetary Coronal Mass Ejections as the driver of non-recurrent Forbush decreases, Astrophys. J., DOI:10.3847/1538-4357/ab6bd1, 2020 | available here
[41] S. Aminalragia-Giamini, P. Jiggens, A. Anastasiadis, I. Sandberg, A. Aran, R. Vainio, C. Papadimitriou, A. Papaioannou, A. Tsigkanos, E. Paouris, M. Paassilta Prediction of Solar Proton Event Fluence Spectra from their Peak Flux Spectra, J. Space Weather Space Clim., DOI: 10.1051/swsc/2019043, 10, 1, 2020 | available here
[40] A. P. Rouillard, R. F. Pinto, A. Vourlidas, A. De Groof, W. T. Thompson, A. Bemporad et al.: Models and data analysis tools for the Solar Orbiter mission, Astron. Astrophys., 642, A2, DOI: 10.1051/0004-6361/201935305, 2020 | available here

2019 [4]

[39] A. Papaioannou, A. Belov, M. Abunina, J. Guo, A. Anastasiadis, R. Wimmer-Schweingruber, E. Eroshenko, A. Melkumyan, A. Abunin, B. Heber, K. Herbst and C.T. Steigies: A catalogue of Forbush decreases recorded on the surface of Mars from 2012 until 2016: comparison with terrestrial FDs, Solar Physics, DOI: 10.1007/s11207-019-1454-2, 294:66, 2019 | available here
[38] L. Vlahos, A. Anastasiadis, A. Papaioannou, A. Kouloumvakos and H. Isliker [Review]: Sources of Solar Energetic Particles, Philosophical Transactions of the Royal Society A, DOI: 10.1094/rsta.2018.0095, 2019 | available here
[37] A. Anastasiadis, D. Lario, A. Papaioannou, A. Kouloumvakos and A. Vourlidas [Review]: Solar Energetic Particles in the inner Heliosphere: Status & Open Questions, Philosophical Transactions of the Royal Society A, DOI: 10.1098/rsta.2018.0100, 2019 | available here
[36] K. Herbst, A. Papaioannou, S. Banjac, and B. Heber: From Solar to Stellar Flare Characteristics, a new Peak Size Distribution for K- and M-Dwarf Star Flares, Astron. Astophys., 621, A67, DOI: 10.1051/0004-6361/201832789, 2019 | available here

2018 [7]

[35] M. K. Georgoulis, A. Papaioannou, I. Sandberg, I. A. Daglis, A. Anastasiadis, R. Rodriguez-Gasen, A. Aran, B. Sanahuja and P. Nieminen: Analysis and Interpretation of Inner-Heliospheric SEP Events with the ESA Standard Radiation Environment Monitor (SREM) Onboard the INTEGRAL and Rosetta Missions, J. Space Weather Space Clim., DOI:10.1051/swsc/2018027, 8, A40, 2018 | available here
[34] A. Papaioannou , A. Anastasiadis, A. Kouloumvakos, M. Paassilta, R. Vainio, E. Valtonen, A. Belov, E. Eroshenko, M. Abunina, A. Abunin: Nowcasting Solar Energetic Particle (SEP) Events using Principal Components Analysis (PCA), Solar Physics, DOI:10.1007/s11207-018-1320-7, 293:100, 2018 | available here
[33] A. Papaioannou , A. Anastasiadis, I. Sandberg, and P. Jiggens: Nowcasting of Solar Energetic Particle Events using near real-time Coronal Mass Ejection characteristics in the framework of the FORSPEF tool, J. Space Weather Space Clim., DOI: 10.1051/swsc/2018024, 8, A37, 2018 | available here
[32] G. Balasis, I.A. Daglis, Y. Contoyiannis, S. M. Potirakis, C. Papadimitriou, N. S. Melis, O. Giannakis, A. Papaioannou, A. Anastasiadis and C. Kontoes: Observation of intermittency-induced critical dynamics in geomagnetic field time series prior to the intense magnetic storms of March, June and December 2015, J. Geophys. Res. Space Physics, 123, DOI:10.1002/2017JA025131, 2018 | available here
[31] M. Paasilta, A. Papaioannou , Nina Dresing, Rami Vainio, Eino Valtonen, Bernd Heber: Catalogue of > 55 MeV Wide-longitude Solar Proton Events Observed by SOHO, ACE, and the STEREOs at ~1 AU during 2009-2016, Solar Physics, 293, 70, DOI:10.1007/s11207-018-1284-7, 2018 | available here
[30] A. Belov, E. Eroshenko V. Yanke, V. Oleneva, A. Abunin, M. Abunina, A. Papaioannou , H. Mavromichalaki: The Global Survey Method Applied to Ground Level Cosmic Ray Measurements, Solar Physics, 293, 68, DOI: 10.1007/s11207-018-1277-6, 2018 | available here
[29] J. Guo, R. Lillis, R. F. Wimmer-Schweigruber, C. Zeitlin, P. Simonson, A. Rahmati, A. Posner, A. Papaioannou, N. Lundt, C. Lee, D. Larson, J. Halekas, D. M. Hassler, B. Ehresmann, P. Dunn, S. Böttcher: 'Measurements of Forbush decreases at Mars: both by MSL on ground and by MAVEN in orbit' Astron. Astrophys., A79, 611, DOI: 10.1051/0004-6361/201732087, 2018 | available here

2017 [3]

[28] A. Anastasiadis, A. Papaioannou, I. Sandberg, M.K. Georgoulis, K. Tziotziou, A. Kouloumvakos, P. Jiggens: 'Predicting Flares and Solar Energetic Particle Events: The FORSPEF Tool' , Solar Physics, 292, 134, DOI: 10.1007/s11207-017-1163-7, 2017 | available here
[27] M. Paassilta, O. Raukunen, R. Vainio, E. Valtonen, A. Papaioannou, R. Siipola, E. Riihonen, M. Dierckxsens, N. Crosby, O. Malandraki, B. Heber, K.- L. Klein: 'Catalogue of > 55 MeV Solar Proton Events Extending Through Solar Cycle 23 and 24' , J. Space Weather Space Clim., 7, A14, 2017 | available here
[26] D. Lario, R.-Y. Kwon, I.G. Richardson, N.E. Raouafi, B.J. Thompson, T.T. von Rosenvinge, M.L. Mays, P.A. Mäkelä, H. Xie, H.M. Bain, M. Zhang, L. Zhao, H.V. Cane, A. Papaioannou, N. Thakur, P. Riley: 'The Solar Energetic Particle Event of 2010 August 14: Connectivity with the Solar Source Inferred from Multiple Spacecraft Observations and Modeling', Astrophys. J., DOI: 10.3847/1538-4357/aa63e4, 2017 | available here

2016 [3]

[25] A. Papaioannou, I. Sandberg, A. Anastasiadis, A. Kouloumvakos, M.K. Georgoulis, K. Tziotziou, G. Tsiropoula, P. Jiggens, A. Hilgers: 'Solar flares, coronal mass ejections and solar energetic particle event characteristics' , J. Space Weather Space Clim., 6, A42, DOI: 10.1051/swsc/2016035, 2016 | available here
[24] D. Lario, R.-Y. Kwon, A. Vourlidas, N.E. Raouafi, D.K. Haggerty, G.C. Ho, B.J. Anderson, A. Papaioannou, R. Gomez-Herrero, N. Dresing, P. Riley: 'Longitudinal Properties of a Widespread Solar Energetic Particle Event on 2014 February 25: Evolution of the Associated CME Shock', Astrophys. J., 10.3847/0004-637X/819/1/72, 2016 | available here
[23] J. Kontogiannis, G. Tsiropoula, A. Belehaki, I. Tsagouri, A. Anastasiadis, A. Papaioannou: 'Building a new space weather facility at the National Observatory of Athens', Adv. Space Res., doi:10.1016/j.asr.2015.10.028, 57, 418 - 430, 2016 | available here

2015 [1]

[22] A. Belov, A. Abunin, M. Abunina, E. Eroshenko, V. Oleneva, V. Yanke, A. Papaioannou, H. Mavromichalaki : 'Galactic Cosmic Ray Density Variations in Magnetic Clouds', Solar Phys., DOI:10.1007/s11207-015-0678-z, 2015 | available here

2014 [5]

[21] G. Souvatzoglou, A. Papaioannou, H. Mavromichalaki, J. Dimitroulakos, C. Sarlanis: 'Optimizing the real-time ground level enhancement alert system based on neutron monitor measurements: introducing GLE Alert Plus', Space Weather, doi: 10.1002/2014SW001102, 2014 | available here
[20] N. Agueda, K.-L. Klein, N. Vilmer, R. Rodríguez-Gasén, O. E. Malandraki, A. Papaioannou, M. Subirŕ, B. Sanahuja, E. Valtonen, W. Dröge, A. Nindos, B. Heber, S. Braune, I. G. Usoskin, D. Heynderickx, E. Talew, R. Vainio: 'Release timescales of solar energetic particles in the low corona', Astron. Astrophys., 570, A5, doi: 10.1051/0004-6361/201423549, 2014 | available here
[19] A. Papaioannou, O.E. Malandraki, N. Dresing, B. Heber, K.-L. Klein, R. Vainio, R. Rodríguez-Gasén, A. Klassen, A. Nindos, D. Heynderickx, R. A. Mewaldt, R. Gómez-Herrero, N. Vilmer, A. Kouloumvakos, K. Tziotziou, G. Tsiropoula: 'SEPServer STEREO Catalogues of Solar Energetic Particle Events at 1 AU based on STEREO recordings: 2007-2012', Astron. Astrophys., 569, A96, doi: 10.1051/0004-6361/201323336, 2014 | available here
[18] A. Belov, A. Abunin, M. Abunina, E. Eroshenko, V. Oleneva, V. Yanke, A. Papaioannou, H. Mavromichalaki, N. Gopalswamy, S. Yashiro : 'Coronal Mass Ejections and non-recurrent Forbush decreases' , Solar Phys., 289, 3949-3960, 2014 | available here
[17] A. Papaioannou, G. Souvatzoglou, P. Paschalis, M. Gerontidou, H. Mavromichalaki : 'The first Ground Level Enhancement Event of Solar Cycle 24 on 17.05.2012 and its real-time detection', Solar Phys., 289, 423-436, 2014 | available here

2013 [2]

[16] L. Tan, O.E. Malandraki, D.V. Reames, C. K. Ng, L. Wang, I. Patsou, A. Papaioannou: 'Comparisons between path-lengths travelled by solar electrons and ions in Ground Level Enhancement Events', Astrophys. Journal, 768, 68, 2013 doi:10.1088/0004-637X/768/1/68 | available here
[15] R. Vainio, E. Valtonen, B. Heber, O.E. Malandraki, A. Papaioannou, K.-L. Klein et al.: 'The first SEPServer event catalogue of ~68-MeV solar proton events observed at 1 AU in 1996-2010', J. Space Weather & Space Climate, J. Space Weather and Space Climate, 3, A12, 2013 | available here

2012 [1]

[14] O.E. Malandraki, N. Agueda, A. Papaioannou, K.-L. Klein, E. Valtonen, B. Heber et al.: Scientific Analysis within SEPServer: new perspectives in Solar Energetic Particle research - the case study of the 13 July 2005 SEP event', Solar Phys., SI: The Sun 360o, DOI 10.1007/s11207-012-0164-9, 2012 | available here

2011 [2]

[13] H. Mavromichalaki, A. Papaioannou & NMDB group: 'Applications and usage of the real-time neutron monitor database (NMDB)', Adv. Space Res., 47, 2210-2222, 2011 | available here
[12] A. Papaioannou, H. Mavromichalaki, M. Gerontidou, G. Souvatzoglou, P. Nieminen, A. Glover: 'Solar Particle Event Analysis Using the Standard Radiation Environment Monitors: Applying the Neutron Monitor's Experience', Astrophys. Space Sci. Trans., 7, 1-5, 2011 | available here

2010 [3]

[11] K. Kudela, H. Mavromichalaki, A. Papaioannou, M. Gerontidou: 'On mid-term periodicities in cosmic rays: utilizing the NMDB archive', Solar Physics, DOI: 10.1007/s11207-010-9598-0, 2010 | available here
[10] A. Papaioannou, O. Malandraki, A. Belov, R. Skoug, H. Mavromichalaki, E. Eroshenko, A. Abunin, S. Lepri: 'On the analysis of the complex Forbush effects of January 2005', Solar Physics, DOI: 10.1007/s11207-010-9601-9, 2010 | available here
[09] H. Mavromichalaki, G. Souvatzoglou, C. Sarlanis, G. Mariatos, A. Papaioannou, A. Belov, E. Eroshenko, V. Yanke: 'Implementation of the Ground Level Enhancement Alert Software at NMDB database', New Astronomy, 15, 744-748, 2010 | available here

2009 [4]

[08] H. Mavromichalaki, M. Gerontidou, G. Mariatos, M. Papailiou, A. Papaioannou, C. Plainaki, C. Sarlanis, G. Souvatzoglou: 'Athens Neutron Monitor Data Processing Center - ANMODAP Center', Adv. Space Res., 44, 1237-1246, 2009 | available here
[07] A. Papaioannou, H. Mavromichalaki, E. Eroshenko, A. Belov, V. Oleneva: 'The burst of solar and geomagnetic activity in August-September 2005', Annales. Geophysicae. , 27, 1-8, 2009 | available here
[06] C. Caroubalos, P. Preka-Papadema, H. Mavromichalaki, X. Moussas, A. Papaioannou, E. Mitsakou, A. Hilaris: 'Space storm measurements of the July 2005 solar extreme events from the Low Corona to the Earth', Adv. Space Res., 43, 600-604, 2009 | available here
[05] A. Papaioannou, A. Belov, H. Mavromichalaki, E. Eroshenko, V. Oleneva: 'The unusual cosmic ray variations in July 2005 resulted from western and behind the limb solar activity' , Adv. Space Res., 43, 582-588, 2009 | available here

2007 [1]

[04] H. Mavromichalaki, A. Papaioannou, G. Mariatos, M. Papailiou, A. Belov, E. Eroshenko, V. Yanke, E. Stassinopoulos: 'Cosmic ray radiation effects on space environment associated to intense solar and geomagnetic activity', IEEE Transactions on Nuclear Physics, 54, 1089, 2007 | available here

2005 [3]

[03] H. Mavromichalaki, M. Gerontidou, G. Mariatos, C. Plainaki, A. Papaioannou, C. Sarlanis, G. Souvatzoglou, A. Belov, E. Eroshenko, V. Yanke and S. Tsitomeneas: 'Space weather forecasting at the new Athens center: The recent extreme events of January 2005', IEEE Transactions of Nuclear Science, Vol. 52, No 6,pp. 2307-2312, 2005 | available here
[02] H. Mavromichalaki, G. Souvatzoglou, C. Sarlanis, G. Mariatos, M. Gerontidou, A. Papaioannou, C. Plainaki, S. Tatsis, A. Belov, E. Eroshenko, V. Yanke: 'The new Athens center on data processing from the neutron monitor network in real time', Annales Geophysicae, 23, 1-8, 2005 | available here
[01] H. Mavromichalaki, A. Papaioannou, A. Petrides, B. Assimakopoulos, C. Sarlanis and G. Souvatzoglou: 'Cosmic-ray events related to solar activity recorded at the Athens neutron monitor station for the period 2000-2003', International Journal of Modern Physics A (IJMPA), Vol. 20, No 29, 6714, 2005 | available here


  • 2012 | Ph.D. thesis, A. Papaioannou. Identification and analysis of forceful events in the cosmic radiation. Department of Physics, National & Kapodistrian University of Athens (in Greek) [available here]