Dayside Merging Topology with Component Reconnection

T. E. Moore [NASA/GSFC/LEP, Code 692, Greenbelt, MD 20771, USA]

M. O. Chandler [NASA/MSFC/SSD, Code SD50, Huntsville, AL 35812 USA]

Outline

• Evidence for low shear reconnection, supporting earlier work:

  • Cowley 1976; Paschmann et al., 1990, 1993, Onsager & Fuselier, 1994,...

• Simultaneity with high shear reconnection

• Global distribution of reconnection

  • vs Crooker, 1977; Luhman, 1984

• Local dependence on IMF (Pdyn)

• Issues:

  • Opening/closing of flux tubes?
  • Relationship to ësashí?

Topology based on anti-parallel,

or high shear reconnection

Crooker, JGR 1979

Luhman JGR 1984

Z

Y

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