EUHFORIA : European heliospheric forecasting information asset

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http://hdl.handle.net/10138/237851

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Pomoell , J & Poedts , S 2018 , ' EUHFORIA : European heliospheric forecasting information asset ' , Journal of space weather and space climate , vol. 8 , 35 . https://doi.org/10.1051/swsc/2018020

Title: EUHFORIA : European heliospheric forecasting information asset
Author: Pomoell, Jens; Poedts, Stefaan
Other contributor: University of Helsinki, Department of Physics

Date: 2018-06-26
Language: eng
Number of pages: 14
Belongs to series: Journal of space weather and space climate
ISSN: 2115-7251
DOI: https://doi.org/10.1051/swsc/2018020
URI: http://hdl.handle.net/10138/237851
Abstract: The implementation and first results of the new space weather forecasting-targeted inner heliosphere model "European heliospheric forecasting information asset" (EUHFORIA) are presented. EUHFORIA consists of two major components: a coronal model and a heliosphere model including coronal mass ejections. The coronal model provides data-driven solar wind plasma parameters at 0.1AU by constructing a model of the coronal large-scale magnetic field and employing empirical relations to determine the plasma state such as the solar wind speed and mass density. These are then used as boundary conditions to drive a three-dimensional time-dependent magnetohydrodynamics model of the inner heliosphere up to 2 AU. CMEs are injected into the ambient solar wind modeled using the cone model, with their parameters obtained from fits to imaging observations. In addition to detailing the modeling methodology, an initial validation run is presented. The results feature a highly dynamic heliosphere that the model is able to capture in good agreement with in situ observations. Finally, future horizons for the model are outlined.
Subject: solar wind
coronal mass ejections
space weather
modeling
heliosphere
interplanetary medium
CORONAL MASS EJECTIONS
STRUCTURED SOLAR-WIND
SPACE WEATHER
MAGNETIC-FIELD
INNER HELIOSPHERE
MAGNETOHYDRODYNAMIC SIMULATIONS
3-DIMENSIONAL PROPAGATION
INTERPLANETARY
MODEL
PREDICTION
115 Astronomy, Space science
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