The impact of coronal hole characteristics and solar cycle activity in reconstructing coronal holes with EUHFORIA

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dc.contributor.author Asvestari, E.
dc.contributor.author Heinemann, S. G.
dc.contributor.author Temmer, M.
dc.contributor.author Pomoell, J.
dc.contributor.author Kilpua, E.
dc.contributor.author Magdalenic, J.
dc.contributor.author Poedts, S.
dc.date.accessioned 2020-09-17T08:24:01Z
dc.date.available 2020-09-17T08:24:01Z
dc.date.issued 2020
dc.identifier.citation Asvestari , E , Heinemann , S G , Temmer , M , Pomoell , J , Kilpua , E , Magdalenic , J & Poedts , S 2020 , The impact of coronal hole characteristics and solar cycle activity in reconstructing coronal holes with EUHFORIA . in 10TH YOUNG RESEARCHER MEETING . Journal of Physics Conference Series , no. 1 , vol. 1548 , IOP Publishing , 10th Young Researcher Meeting , Rome , Italy , 18/06/2019 . https://doi.org/10.1088/1742-6596/1548/1/012004
dc.identifier.citation conference
dc.identifier.other PURE: 144620495
dc.identifier.other PURE UUID: c7205547-cb19-4e56-89fb-5a5b9cf50999
dc.identifier.other WOS: 000565564500004
dc.identifier.other ORCID: /0000-0003-1175-7124/work/80576007
dc.identifier.other ORCID: /0000-0002-4489-8073/work/80577373
dc.identifier.other ORCID: /0000-0002-6998-7224/work/80577490
dc.identifier.uri http://hdl.handle.net/10138/319445
dc.description.abstract Modelling with high accuracy the open magnetic field and the fast solar wind in the heliosphere is essential for space weather forecasting purposes. Primary sources of open magnetic field flux are Coronal Holes (CH), uni-polar regions that appear as dark patches in the solar corona when observed in X-ray and extreme-ultraviolet (EUV) images due to having significantly lower density and temperature to their surroundings. Therefore, when assessing how well the open magnetic field and the fast solar wind are modelled one can look at how well the model performs on one of its fundamental functions, that of reconstructing coronal hole areas. In this study we investigate how the CH morphology (i.e. latitudinal position of the centre of mass, area, intensity, elongation) and the solar variability, from high to low activity periods, can affect the results. We also investigated the possibility that the model is reconstructing CHs that are systematically shifted with respect to their observed position. The study is applied on 15 CHs exhibiting different latitudinal position and geometry. We compare the modelled CH areas with boundaries obtained by remote sensing EUV observations using the CATCH tool (Collection of Analysis Tools for Coronal Holes). We found no apparent effect of the CH characteristics on the modelling capabilities. In addition, solar cycle activity seems not to have any effect either. However, we emphasize that our sample is small and this outcome highlights the need for an extended research. en
dc.format.extent 6
dc.language.iso eng
dc.publisher IOP Publishing
dc.relation.ispartof 10TH YOUNG RESEARCHER MEETING
dc.relation.ispartofseries Journal of Physics Conference Series
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject TIME
dc.subject 115 Astronomy, Space science
dc.subject 114 Physical sciences
dc.title The impact of coronal hole characteristics and solar cycle activity in reconstructing coronal holes with EUHFORIA en
dc.type Conference contribution
dc.contributor.organization Space Physics Research Group
dc.contributor.organization Particle Physics and Astrophysics
dc.contributor.organization Department of Physics
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1088/1742-6596/1548/1/012004
dc.relation.issn 1742-6588
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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