Towards multi-dimensional space weather modeling for energetic oxygen ions in the earth's inner magnetosphere: Equilibrium configuration

2002 ◽  
Vol 30 (12) ◽  
pp. 2839-2842 ◽  
Author(s):  
Walther N Spjeldvik ◽  
Sebastien Bourdarie ◽  
Daniel Boscher
Keyword(s):  
Space Weather ◽  
Equilibrium Configuration ◽  
Dimensional Space ◽  
Inner Magnetosphere ◽  
Oxygen Ions ◽  
Weather Modeling

Effect of selecting different simulation configurations on the prediction performance of the Space Weather Modeling Framework regarding ground magnetic perturbations

2020 ◽  
Author(s):  
Norah Kaggwa Kwagala ◽  
Michael Hesse ◽  
Therese M. Jorgensen ◽  
Paul Tenfjord ◽  
Cecilia Norgren ◽  
...  
Keyword(s):  
Space Weather ◽  
Prediction Performance ◽  
Mhd Equations ◽  
Polar Cap ◽  
Modeling Framework ◽  
Inner Magnetosphere ◽  
Integration Schemes ◽  
Magnetic Perturbations ◽  
Weather Modeling ◽  
Ground Magnetic

<p><span>This study investigates the effect of selecting different simulation configurations of the Space Weather Modeling Framework (SWMF) on the predictions of ground magnetic perturbations. A historic geomagnetic storm, the St. Patrick Storm 2015, is simulated with several different model configurations. The objective is to investigate how the different configurations affect the prediction performance regarding ground magnetic perturbations. For each simulation, the modeled ground magnetic perturbations are compared to the measured perturbations from several ground magnetometer stations located at sub-auroral, auroral and polar cap latitudes. Among the magnetometer stations are the Norwegian and Greenland magnetometer chains. The comparison is based on metrics for both <em>ΔB</em> </span><span>and <em>dB/dt</em></span><span>. The SWMF configurations investigated include variations in grid resolution and integration schemes for the MHD equations, and different settings for the inner magnetosphere, the ionosphere electrodynamics, and the magnetosphere-ionosphere coupling. </span></p>

scholarly journals Space Weather Modeling Capabilities Assessment: Neutral Density for Orbit Determination at low Earth orbit

Space Weather ◽  
2018 ◽  
Vol 16 (11) ◽  
pp. 1806-1816 ◽  
Author(s):  
S. Bruinsma ◽  
E. Sutton ◽  
S. C. Solomon ◽  
T. Fuller-Rowell ◽  
M. Fedrizzi
Keyword(s):  
Space Weather ◽  
Orbit Determination ◽  
Low Earth Orbit ◽  
Neutral Density ◽  
Earth Orbit ◽  
Weather Modeling

scholarly journals Integration of RAM-SCB into the Space Weather Modeling Framework

2018 ◽  
Vol 177 ◽  
pp. 160-168 ◽  
Author(s):  
Daniel T. Welling ◽  
Gabor Toth ◽  
Vania K. Jordanova ◽  
Yiqun Yu
Keyword(s):  
Space Weather ◽  
Modeling Framework ◽  
Weather Modeling

Explicit IMF By-dependence in geomagnetic activity

2021 ◽  
Author(s):  
Lauri Holappa ◽  
Timo Asikainen ◽  
Kalevi Mursula
Keyword(s):  
Solar Wind ◽  
Geomagnetic Activity ◽  
Space Weather ◽  
High Latitude ◽  
Coupling Function ◽  
Future Space ◽  
Weather Modeling ◽  
Southern High Latitude ◽  
Imf Clock Angle ◽  
The Imf

<p>The interaction of the solar wind with the Earth’s magnetic field produces geomagnetic activity, which is critically dependent on the orientation of the interplanetary magnetic field (IMF). Most solar wind coupling functions quantify this dependence on the IMF orientation with the so-called IMF clock angle in a way, which is symmetric with respect to the sign of the B<sub>y</sub> component. However, recent studies have shown that IMF B<sub>y</sub> is an additional, independent driver of high-latitude geomagnetic activity, leading to higher (weaker) geomagnetic activity in Northern Hemisphere (NH) winter for B<sub>y</sub> > 0 (B<sub>y</sub> < 0). For NH summer the dependence on the B<sub>y</sub> sign is reversed. We quantify the size of this explicit B<sub>y</sub>-effect with respect to the solar wind coupling function, both for northern and southern high-latitude geomagnetic activity. We show that for a given value of solar wind coupling function, geomagnetic activity is about 40% stronger for B<sub>y</sub> > 0 than for B<sub>y</sub> < 0 in NH winter. We also discuss recent advances in the physical understanding of the B<sub>y</sub>-effect. Our results highlight the importance of the IMF B<sub>y</sub>-component for space weather and must be taken into account in future space weather modeling.</p>

scholarly journals Space Weather Modeling Capabilities Assessment: Auroral Precipitation and High‐Latitude Ionospheric Electrodynamics

Space Weather ◽  
2019 ◽  
Vol 17 (2) ◽  
pp. 212-215 ◽  
Author(s):  
Robert Robinson ◽  
Yongliang Zhang ◽  
Katherine Garcia‐Sage ◽  
Xiaohua Fang ◽  
Olga P. Verkhoglyadova ◽  
...  
Keyword(s):  
Space Weather ◽  
High Latitude ◽  
Ionospheric Electrodynamics ◽  
Weather Modeling

scholarly journals The Virtual Space Weather Modelling Centre

2020 ◽  
Vol 10 ◽  
pp. 14 ◽  
Author(s):  
Stefaan Poedts ◽  
Andrey Kochanov ◽  
Andrea Lani ◽  
Camilla Scolini ◽  
Christine Verbeke ◽  
...  
Keyword(s):  
Space Weather ◽  
Simulation Models ◽  
Virtual Space ◽  
High Level Architecture ◽  
Integrated Environment ◽  
Geographically Distributed ◽  
Weather Modeling ◽  
Visualization Tools ◽  
End To End ◽  
High Level

Aims. Our goal is to develop and provide an open end-to-end (Sun to Earth) space weather modeling system, enabling to combine (“couple”) various space weather models in an integrated tool, with the models located either locally or geographically distributed, so as to better understand the challenges in creating such an integrated environment. Methods. The physics-based models are installed on different compute clusters and can be run interactively and remotely and that can be coupled over the internet, using open source “high-level architecture” software, to make complex modeling chains involving models from the Sun to the Earth. Visualization tools have been integrated as “models” that can be coupled to any other integrated model with compatible output. Results. The first operational version of the VSWMC is accessible via the SWE Portal and demonstrates its end-to-end simulation capability. Users interact via the front-end GUI and can interactively run complex coupled simulation models and view and retrieve the output, including standard visualizations, via the GUI. Hence, the VSWMC provides the capability to validate and compare model outputs.

scholarly journals Observations of molecular oxygen ions in Saturn's inner magnetosphere

2008 ◽  
Vol 35 (20) ◽  
Author(s):  
Hilary R. Martens ◽  
Daniel B. Reisenfeld ◽  
John D. Williams ◽  
Robert E. Johnson ◽  
H. Todd Smith
Keyword(s):  
Molecular Oxygen ◽  
Inner Magnetosphere ◽  
Oxygen Ions

scholarly journals Halloween Storm Simulations with the Space Weather Modeling Framework

2006 ◽  
Author(s):  
Tamas Gombosi ◽  
Gabor Toth ◽  
Igor Sokolov ◽  
Ward Manchester ◽  
Aaron Ridley ◽  
...  
Keyword(s):  
Space Weather ◽  
Modeling Framework ◽  
Weather Modeling

scholarly journals The Space Weather Modeling Framework Goes Open Access

Eos ◽  
2021 ◽  
Vol 102 ◽  
Author(s):  
Tuija Pulkkinen ◽  
Tamas Gombosi ◽  
Aaron Ridley ◽  
Gabor Toth ◽  
Shasha Zou
Keyword(s):  
Open Access ◽  
Space Weather ◽  
Computational Models ◽  
Power Grid ◽  
Magnetic Storms ◽  
Modeling Framework ◽  
Weather Modeling

A versatile suite of computational models, already used to forecast magnetic storms and potential power grid and telecommunications disruptions, is preparing to welcome a larger group of users.

scholarly journals On the accuracy of aurora visible boundaries in the OVATION Prime (PC) model

2021 ◽  
pp. 171-182
Author(s):  
А.В. Николаев ◽  
С.А. Долгачёва ◽  
С.А. Черняева
Keyword(s):  
Chemical Composition ◽  
Space Weather ◽  
Plasma Layer ◽  
Auroral Oval ◽  
Information Resources ◽  
The Arctic ◽  
Inner Magnetosphere ◽  
Aurora Borealis ◽  
Monitoring And Forecasting ◽  
Auroral Particle Precipitation

Оценка положения экваториальных границ аврорального овала при разных магнитосферных условиях, несёт в себе информацию о формирующихся плазменных структурах, глубине их проникновения во внутреннюю магнитосферу, движении внутренней границы плазменного слоя и т.д. Развитие алгоритмов определения положения видимой экваториальной границы аврорального овала является важной частью исследований, связанных с разработкой моделей химического состава ионосферы, моделей авроральных высыпаний частиц и оценки точности этих моделей. Немаловажную роль исследования полярных сияний (прогноз, интенсивность, положение) играют и для развития туристического сегмента в Арктике и информационных ресурсов служб мониторинга и прогноза космической погоды. В рамках исследования оценки точности положения видимых границ овала сияний в моделях авроральных высыпаний частиц была выбрана наземная наблюдательная сеть оптических камер всего неба проекта THEMIS, запущенная в 2008 г., и модифицированная модель OVATION Prime (PC), разработанная в отделе Геофизики ФГБУ «ААНИИ использующая в качестве входного параметра наземный индекс полярной шапки (PC-индекс). The location of the equatorial boundaries of the auroral oval under different magnetospheric conditions contains information about the forming plasma structures, the depth of their penetration into the inner magnetosphere, the motion of the inner boundary of the plasma layer, etc. The development of methods and algorithms for determining the position of the visible equatorial boundary of the auroral oval is an important part of research related to the development of models of the chemical composition of the ionosphere, models of auroral particle precipitation, and assessment of the accuracy of these models. Research of aurora borealis (forecast, intensity, position) also plays an important role for the development of the tourist segment in the Arctic and information resources of space weather monitoring and forecasting services.

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