The O+ contribution and role on the ring current pressure development for CMEs and CIRs using Van Allen Probes observations

Christopher Mouikis1, Sam Bingham2, Lynn M Kistler1, Charles J Farrugia3, Harlan E Spence1 and Matina Gkioulidou4, (1)University of New Hampshire Main Campus, Space Science Center, Durham, NH, United States, (2)University of New Hampshire Main Campus, Durham, NH, United States, (3)University of New Hampshire, Durham, United States, (4)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States