caa a22 4500 445346981 CHVBK 20180317142832.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11207-011-9787-5 doi (NATIONALLICENCE)springer-10.1007/s11207-011-9787-5 The Global Context of Solar Activity During the Whole Heliosphere Interval Campaign [Elektronische Daten] [D. Webb, H. Cremades, A. Sterling, C. Mandrini, S. Dasso, S. Gibson, D. Haber, R. Komm, G. Petrie, P. McIntosh, B. Welsch, S. Plunkett] The Whole Heliosphere Interval (WHI) was an international observing and modeling effort to characterize the 3-D interconnected "heliophysical” system during this solar minimum, centered on Carrington Rotation 2068, March 20 - April 16, 2008. During the latter half of the WHI period, the Sun presented a sunspot-free, deep solar minimum type face. But during the first half of CR 2068 three solar active regions flanked by two opposite-polarity, low-latitude coronal holes were present. These departures from the quiet Sun led to both eruptive activity and solar wind structure. Most of the eruptive activity, i.e., flares, filament eruptions and coronal mass ejections (CMEs), occurred during this first, active half of the interval. We determined the source locations of the CMEs and the type of associated region, such as active region, or quiet sun or active region prominence. To analyze the evolution of the events in the context of the global solar magnetic field and its evolution during the three rotations centered on CR 2068, we plotted the CME source locations onto synoptic maps of the photospheric magnetic field, of the magnetic and chromospheric structure, of the white light corona, and of helioseismological subsurface flows. Most of the CME sources were associated with the three dominant active regions on CR 2068, particularly AR 10989. Most of the other sources on all three CRs appear to have been associated with either isolated filaments or filaments in the north polar crown filament channel. Although calculations of the flux balance and helicity of the surface magnetic features did not clearly identify a dominance of one region over the others, helioseismological subsurface flows beneath these active regions did reveal a pronounced difference among them. These preliminary results suggest that the "twistedness” (i.e., vorticity and helicity) of subsurface flows and its temporal variation might be related to the CME productivity of active regions, similar to the relationship between flares and subsurface flows. Springer Science+Business Media B.V., 2011 Coronal mass ejections, origins nationallicence Solar synoptic maps nationallicence Helioseismology, subsurface flows nationallicence Webb D. ISR, Boston College, Chestnut Hill, MA, USA aut Cremades H. UTN-FRM/CONICET, Mendoza, Argentina aut Sterling A. NASA/MSFC, Huntsville, AL, USA aut Mandrini C. IAFE, CONICET, Buenos Aires, Argentina aut Dasso S. IAFE, CONICET, Buenos Aires, Argentina aut Gibson S. NCAR/High Altitude Observatory, Boulder, CO, USA aut Haber D. JILA, University of Colorado, Boulder, CO, USA aut Komm R. National Solar Observatory, Tucson, AZ, USA aut Petrie G. National Solar Observatory, Tucson, AZ, USA aut McIntosh P. Heliosynoptics, Inc., Boulder, CO, USA aut Welsch B. SSL, University of California-Berkeley, Berkeley, CA, USA aut Plunkett S. Naval Research Laboratory, Washington, DC, USA aut Solar Physics Springer Netherlands 274/1-2(2011-12-01), 57-86 0038-0938 274:1-2<57 2011 274 11207 https://doi.org/10.1007/s11207-011-9787-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11207-011-9787-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Webb D. ISR, Boston College, Chestnut Hill, MA, USA aut NATIONALLICENCE 700 1- Cremades H. UTN-FRM/CONICET, Mendoza, Argentina aut NATIONALLICENCE 700 1- Sterling A. NASA/MSFC, Huntsville, AL, USA aut NATIONALLICENCE 700 1- Mandrini C. IAFE, CONICET, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Dasso S. IAFE, CONICET, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Gibson S. NCAR/High Altitude Observatory, Boulder, CO, USA aut NATIONALLICENCE 700 1- Haber D. JILA, University of Colorado, Boulder, CO, USA aut NATIONALLICENCE 700 1- Komm R. National Solar Observatory, Tucson, AZ, USA aut NATIONALLICENCE 700 1- Petrie G. National Solar Observatory, Tucson, AZ, USA aut NATIONALLICENCE 700 1- McIntosh P. Heliosynoptics, Inc., Boulder, CO, USA aut NATIONALLICENCE 700 1- Welsch B. SSL, University of California-Berkeley, Berkeley, CA, USA aut NATIONALLICENCE 700 1- Plunkett S. Naval Research Laboratory, Washington, DC, USA aut NATIONALLICENCE 773 0- Solar Physics Springer Netherlands 274/1-2(2011-12-01), 57-86 0038-0938 274:1-2<57 2011 274 11207 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer