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相关论文: Implementing the MULTI-VP coronal model in EUHFORI…

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We present a new model, MULTI-VP, that computes the three-dimensional structure of the solar wind which includes the chromosphere, the transition region, and the corona and low heliosphere. MULTI-VP calculates a large ensemble of wind…

太阳与恒星天体物理 · 物理学 2017-04-05 Rui F. Pinto , Alexis P. Rouillard

We present the implementation of coupling the EUropean Heliospheric FORcasting Information Asset (EUHFORIA) and the improved Particle Acceleration and Transport in the Heliosphere (iPATH) model and simulate the widespread solar energetic…

空间物理 · 物理学 2022-12-07 Zheyi Ding , Nicolas Wijsen , Gang Li , Stefaan Poedts

We present a new 3D MHD heliospheric model for space-weather forecasting driven by boundary conditions defined from white-light observations of the solar corona. The model is based on the MHD code PLUTO, constrained by an empirical…

Given a known radial magnetic field distribution on the Sun's photospheric surface, there exist well-established methods for computing a potential magnetic field in the corona above. Such potential fields are routinely used as input to…

太阳与恒星天体物理 · 物理学 2021-12-22 Oliver E. K. Rice , Anthony R. Yeates

The Flux Rope in 3D (FRi3D, Isavnin, 2016), a coronal mass ejection (CME) model with global three-dimensional (3D) geometry, has been implemented in the space weather forecasting tool EUHFORIA (Pomoell and Poedts, 2018). By incorporating…

Solar coronal mass ejections (CMEs) can catch up and interact with preceding CMEs and solar wind structures to undergo rotation and deflection during their propagation. We aim to show how interactions undergone by a CME in the corona and…

太阳与恒星天体物理 · 物理学 2023-07-12 Anwesha Maharana , Camilla Scolini , Brigitte Schmieder , Stefaan Poedts

Solar wind forecasting plays a crucial role in space weather prediction, yet significant uncertainties persist due to incomplete magnetic field observations of the Sun. Isolating the solar wind forecasting errors due to these effects is…

The solar wind (SW) is a vital component of space weather, providing a background for solar transients such as coronal mass ejections, stream interaction regions, and energetic particles propagating toward Earth. Accurate prediction of…

太阳与恒星天体物理 · 物理学 2025-08-25 Dinesha V. Hegde , Tae K. Kim , Nikolai V. Pogorelov , Shaela I. Jones , Charles N. Arge

We introduce a new solar energetic particle (SEP) transport code that aims at studying the effects of different solar wind configurations on SEP events. We focus on the influence of varying solar wind velocities on the energy changes of…

空间物理 · 物理学 2019-01-29 N. Wijsen , A. Angels , J. Pomoell , S. Poedts

Aims. We present the validation results for arrival times and geomagnetic impact of Coronal Mass Ejections (CMEs), using the cone and spheromak CME models implemented in EUropean Heliospheric FORecasting Information Asset (EUHFORIA).…

Emanating from the base of the Sun's corona, the solar wind fills the interplanetary medium with a magnetized stream of charged particles whose interaction with the Earth's magnetosphere has space-weather consequences such as geomagnetic…

太阳与恒星天体物理 · 物理学 2020-06-11 Vishal Upendran , M. C. M Cheung , Shravan Hanasoge , Ganapathi Krishnamurthi

The ambient solar wind plays a significant role in propagating interplanetary coronal mass ejections and is an important driver of space weather geomagnetic storms. A computationally efficient and widely used method to predict the ambient…

空间物理 · 物理学 2023-09-21 Opal Issan , Pete Riley , Enrico Camporeale , Boris Kramer

In the recent years, global coronal models have experienced an ongoing increase in popularity as tools for forecasting solar weather. Within the domain of up to 21.5Rsun, magnetohydrodynamics (MHD) is used to resolve the coronal structure…

太阳与恒星天体物理 · 物理学 2022-11-30 Michaela Brchnelova , Błażej Kuźma , Barbara Perri , Andrea Lani , Stefaan Poedts

Solar wind streams, acting as background, govern the propagation of space weather drivers in the heliosphere, which induce geomagnetic storm activities. Therefore, predictions of the solar wind parameters are the core of space weather…

太阳与恒星天体物理 · 物理学 2022-09-14 Prateek Mayank , Bhargav Vaidya , D. Chakrabarty

Global coronal models seek to produce an accurate physical representation of the Sun's atmosphere which can be used, for example, to drive space weather models. Assessing their accuracy is a complex task and there are multiple observational…

We describe, test, and apply a technique to incorporate full-sun, surface flux evolution into an MHD model of the global solar corona. Requiring only maps of the evolving surface flux, our method is similar to that of Lionello et al.…

Solar Orbiter provides unique capabilities to understand the heliosphere. In particular, it has made observations of the far-side of the Sun and provides unique information to improve space weather monitoring. We aim to quantify how…

太阳与恒星天体物理 · 物理学 2024-04-11 Barbara Perri , Adam Finley , Victor Réville , Susanna Parenti , Allan Sacha Brun , Antoine Strugarek , Éric Buchlin

An empirical model for forecasting solar wind speed related geomagnetic events is presented here. The model is based on the estimated location and size of solar coronal holes. This method differs from models that are based on photospheric…

天体物理学 · 物理学 2008-11-26 S. Robbins , C. J. Henney , J. W. Harvey

During the propagation of cosmic rays in the solar system, the Sun will block those particles and form a shadow whose position and depth are very important probe of the magnetic fields in the Sun's corona, in the interplanetary space, and…

高能天体物理现象 · 物理学 2026-05-19 Jie Xia , Ming-Yang Cui , Qiang Yuan , Yi Zhang , Guang-Lu Shi , Li Feng

Inspired by the concept of relativity of simultaneity used in the theory of special relativity, a new approach is proposed to simulate future solar wind conditions at any point in the inner solar system. An important distinctive feature of…

太阳与恒星天体物理 · 物理学 2025-01-22 Igor V. Sokolov , Tamas I. Gombosi