Relating out-of and in-ecliptic solar wind composition with Ulysses/SWICS and SOHO/CELIAS/MTOF

We use Ulysses/SWICS and SOHO/CELIAS/MTOF solar wind composition data to investigate solar wind dwell regions and compare typical time scales for the transition from fast to slow wind in the ecliptic plane and at various heliographic latitudes. While SOHO was always confined to the ecliptic plane, Ulysses performed three full nearly polar orbits around the Sun and traversed the ecliptic multiple times when SOHO was in operation. Because Ulysses/SWICS provides both elemental and ionic composition, but SOHO/CELIAS/MTOF measures only elemental composition, we also use ACE/SWICS data to provide charge-state information. Opposite to traditional stream interfaces between slow and fast wind which are dynamically compressed and generally associated with corotating interaction regions (CIRs), the transition from fast to slow wind (so-called solar wind dwells) are 'pulled apart' dynamically, thus 'magnifying' the transition region. This allows us to determine with much more accuracy the nature of the transition and - thus we hope - to provide limits on models of the origin of the slow wind. Here we will show preliminary results and present explain the analysis procedure.