Fig. 4From: The development and validation of a ‘flux-corrected transport’ based solution methodology for the plasmasphere refilling problem following geomagnetic stormsa Hydrogen ion concentration profile after 10 min. The concentration normalized to the concentration at the base altitude is imposed on the guard cells. The drift velocity normalized to the hydrogen thermal velocity is imposed on the guard cells. The domain length is normalized to the length of the flux tube. b Hydrogen ion velocity profile after 10 min. The concentration normalized to the concentration at the base altitude is imposed on the guard cells. The drift velocity normalized to the hydrogen thermal velocity is imposed on the guard cells. The domain length is normalized to the length of the flux tubeBack to article page