Subgrid geoelectric field specification for GIC modeling

Mark Butala1, Matthew Grawe1, Farzad Kamalabadi2 and Jonathan J Makela3, (1)University of Illinois at Urbana Champaign, Department of Electrical and Computer Engineering, Urbana, IL, United States, (2)University of Illinois, Urbana, IL, United States, (3)University of Illinois Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, IL, United States