Session Details - ST21-32


Session Details
Section ST - Solar & Terrestrial Sciences
Session Title History and Development of Solar Terrestrial Sciences Including Auroral Sub-Storms
Main Convener Dr. Nanan Balan (Nagoya University, Japan)
Co-convener(s) Dr. George Parks (University of California Berkeley, United States)
Dr. Anthony Lui (The Johns Hopkins University Applied Physics Laboratory, United States)
Prof. Yohsuke Kamide (Rikubetsu Space and Earth Science Museum, Japan)
Dr. Leif Svalgaard (Stanford University, United States)
Session Description This session provides a forum to present and discuss the history and development of solar terrestrial (ST) sciences including auroral sub-storms. Reports on the recently completed and newly started international and national ST programs are also welcome. Solar terrestrial sciences started centuries ago, and branched into different disciplines. Starting with naked eye to highly sophisticated novel experimental techniques, observations have revealed the secrets of the Sun, heliosphere, magnetosphere, plasmasphere and ionosphere-atmosphere components of the ST system. Theories and theoretical modeling have been developed for the different components independently and together. World-wide efforts under different umbrella are being persuaded to understand the challenges of the ST system. In sub-storm studies, (1) the onset problem and (2) role of O+ ions in sub-storm physics are two issues that are hotly debated. The onset problem is whether the sub-storm is triggered by magnetic reconnection in the mid-tail region between15-20 Re (Hones, 1979) or by a current disruption at ~12 Re (Lui et al., 1992). On the role of O+, whether the O+ ions affect the dynamics of sub-storms that occur during magnetic storms differently from sub-storms in non-storm conditions has not yet been resolved . Papers and reports dealing with the history and developments of ST sciences and the sub-storm problems through observations, theory and modeling have been solicited.