Achieving Consistent Vector Magnetic Field Measurements from SDO/HMI

Peter W Schuck1, Spiro K Antiochos1, Philip H Scherrer2, J Todd Hoeksema2, KD D Leka3 and Graham Barnes3, (1)NASA Goddard Space Flight Center, Greenbelt, United States, (2)Stanford University, Stanford, CA, United States, (3)NorthWest Research Associates Boulder, Boulder, CO, United States