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Simulating Solar Maximum Conditions Using the Alfven Wave Solar-Atmosphere Model (AWSoM)
  • +10
  • Nishtha Sachdeva,
  • Gábor Tóth,
  • Ward B Manchester,
  • Bart Van Der Holst,
  • Zhenguang Huang,
  • Igor V Sokolov,
  • Lulu Zhao,
  • Qusai Al-Shidi,
  • Yuxi Chen,
  • Tamas I Gombosi,
  • Carl J Henney,
  • Diego Lloveras,
  • Alberto Vasquez
Nishtha Sachdeva
University of Michigan, University of Michigan, University of Michigan

Corresponding Author:nishthas@umich.edu

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Gábor Tóth
University of Michigan, University of Michigan, University of Michigan
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Ward B Manchester
University of Michigan, University of Michigan, University of Michigan
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Bart Van Der Holst
University of Michigan, University of Michigan, University of Michigan
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Zhenguang Huang
University of Michigan, University of Michigan, University of Michigan
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Igor V Sokolov
University of Michigan, University of Michigan, University of Michigan
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Lulu Zhao
University of Michigan, University of Michigan, University of Michigan
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Qusai Al-Shidi
University of Michigan, University of Michigan, University of Michigan
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Yuxi Chen
University of Michigan, University of Michigan, University of Michigan
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Tamas I Gombosi
University of Michigan, University of Michigan, University of Michigan
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Carl J Henney
Kirtland AFB, Kirtland AFB, Kirtland AFB
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Diego Lloveras
Consejo Nacional de Investigaciones Científicas y Técnicas
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Alberto Vasquez
Universidad Nacional de Tres de Febrero,Consejo Nacional de Investigaciones Científicas y Técnicas
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Abstract

To simulate solar Coronal Mass Ejections (CMEs), predict their time of arrival and geomagnetic impact, it is important to accurately model the background solar wind conditions in which CMEs propagate. We use the Alfvén Wave Solar-atmosphere Model (AWSoM) within the the Space Weather Modeling Framework (SWMF) to simulate solar maximum conditions during two Carrington rotations and produce solar wind background conditions comparable to the observations. We describe the inner boundary conditions for AWSoM using the ADAPT global magnetic maps and validate the simulated results with EUV observations in the low corona and measured plasma parameters at L1 as well as at the position of the STEREO spacecraft. This work complements our prior AWSoM validation study for solar minimum conditions Sachdeva et al. (2019), and shows that during periods of higher magnetic activity, AWSoM can reproduce the solar plasma conditions (using properly adjusted photospheric Poynting flux) suitable for providing proper initial conditions for launching CMEs.