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VERSION:2.0
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BEGIN:VEVENT
DTSTAMP:20260818T110716Z
UID:https://www.mps.mpg.de/events/39048/7840830
DTSTART:20240905T090000Z
DTEND:20240905T100000Z
CLASS:PUBLIC
CREATED:20240901T160720Z
DESCRIPTION: Strong magnetic skew characterizes several non-potential struc
 tures in the solar corona\, including filaments\, which can erupt\, bringi
 ng about major geomagnetic effects. Skew is thus an indicator of the forma
 tion of filament channels and a useful property in making forecasts from g
 lobal coronal models. For skew to be used in this way\, its formation and 
 evolution must be identified\, with particular consideration of when this 
 occurs within the field of view observable from Earth. Magnetofrictional s
 imulations are performed\, with the photospheric boundary condition provid
 ed by an observed flux distribution. New techniques are presented for iden
 tifying where strong skew forms\, and the production and persistence of st
 rong skew in the corona studied systematically. Strong skew is found to fo
 rm incrementally\, in small patches\, especially around recently emerged b
 ipolar regions. As such\, skew is produced and persists over very long per
 iods of time\, comparable with the timescale for solar rotation. Consequen
 tly\, most skew on the Earth-facing side of the Sun rotates onto it\, havi
 ng formed on the far side\, rather than forming within the Earth’s field
  of view. Therefore\, in a data-driven model that is limited to including 
 the emergence of flux observed only from Earth\, most of the resultant ske
 w will form after this flux has rotated out of view and onto the far side 
 of the Sun. Given this\, it will be important to study how a wider field o
 f view for capturing emergent flux before it rotates into longitudes visib
 le from Earth\, afforded by multi-viewpoint observations\, would improve o
 ur capacity to model and predict Earth-facing phenomena on the Sun\, which
  are important for space weather. Possible effects of multi-viewpoint obse
 rvations on similar models of the formation of skew are considered. Co-aut
 hors: D. H. Mackay\, and L. A. Upton\nVortragende(r): Jack Reid 
LAST-MODIFIED:20240901T161023Z
LOCATION:https://zoom.us/j/165498165
ORGANIZER;CN=Shahin Jafarzadeh:mailto:
SUMMARY:ESPOS: ESPOS -Quantifying when and where strong magnetic skew forms
  in a data-driven global model of the solar corona when limited observatio
 nal data exist (J. Reid) 
URL;VALUE=URI:https://www.mps.mpg.de/events/39048/7840830
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