tokens: This material is based upon work partially supported by the National Science Foundation under grant No. 1616538. The National Solar Observatory is operated by the Association of Universities for Research in Astronomy under a cooperative agreement with the National Science Foundation. The National Center for Atmospheric Research is sponsored by the National Science Foundation. This work utilized the RMACC Summit supercomputer, which is supported by the National Science Foundation (awards ACI-1532235 and ACI-1532236), the University of Colorado Boulder, and Colorado State University. The Summit supercomputer is a joint effort of the University of Colorado Boulder and Colorado State University. The authors are grateful for the International Space Science Institute in Bern for hosting the International Team 335 “Toward New Models of Solar Spectral Irradiance Based on 3D MHD Simulations,” which helped motivate this work. Software: MURaM (Vögler et al. 2005 ; Rempel et al. 2009 ), RH (Uitenbroek 2001 ; Pereira Uitenbroek 2015 ), Stagger (Nordlund Galsgaard 1995 ), Scipy ndimage (Jones et al. 2001 ).
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