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

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: 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

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.

Evaluation of pipeline corrosion rates due to enhanced telluric activity associated with space weather

2020 ◽  
Author(s):  
Larisa Trichtchenko
Keyword(s):  
Space Weather ◽  
High Latitude ◽  
Metal Loss ◽  
Geomagnetic Variations ◽  
Corrosion Rates ◽  
Northern Areas ◽  
Protection Systems ◽  
Weather Impacts ◽  
Telluric Currents ◽  
Pipeline Corrosion

<p>Telluric currents are the natural phenomena especially pronounced in the high latitude areas (above 60 degrees). These currents, as any stray current, are able to interfere with pipeline cathodic protection systems, and came into wide consideration with construction of pipelines in northern areas, where the geomagnetic variations are more severe and last for prolonged times.</p><p>The paper will explain the approach developed for estimation of pipeline corrosion rates due to telluric activity, and results of its applications.</p><p>Statistical evaluation of the occurrence rates for the pipe-to-soil potential difference values based on modelling of the pipeline response to the geomagnetic activity in two different locations (high latitude and mid-latitude) will be combined with the method developed for calculation of corrosion rate (metal loss). The presented approach and results of its application to different types of pipelines located at different latitudes can be used as a practical guidance for the assessments of the space weather impacts on pipeline operations.</p>

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
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