Connections within Geospace, Living With a Star Response L. Zanetti (JHU/APL, Laurel, MD 20723), N. Fox, B. Mauk, D. Mitchell, P. Brandt, B Anderson, H. Korth, and S. Carr Recently published GPS maps of enhanced channels of Total Electron Content during storm periods (Foster et al., Geophysical Research Letters, 2002) beg the question of high altitude drivers and low altitude, interactive response. Presumably electric fields are the connecting mechanism; IMAGE energetic neutral atom imaging data and Iridium constellation magnetic field data are compared for consistency. Tracking of these phenomena and understanding the drivers will aid in the knowledge and eventual prediction of communication and navigation errors and disruptions. Connection of physical processes within Geospace and eventually toward the sun is a major science goal of NASAÕs Living With a Star program; studies such as the above are pathfinders in the sun to Earth system science that will provide the understanding of those Geospace phenomena that most affect life and society. ___________ Presentation at the Yosemite Conference of Inner Magnetospheric Interactions, 3 - 6 February 2004, Yosemite, California, USA