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The southern hemisphere equivivalent of the previous two slides. Noon is again up and midnight is down, but dawn is now left and dusk is right. Red color now indicates Region-1 type current (upward current, parallel to B) on the eveningside (duskside, right) while indicating Region-2 type current (again upward, parallel to B) on the morningside (dawnside, left); and respectively for blue color which always indicates antiparallel-to-B current which is downward on the southern hemisphere.
The rainbow color boded variable is the northern hemisphere height-integrated Hall conductivity. Blue (minimum) represents 0 mho while red (maximum) represents 30 mho. The same equipotential contours as in the previous FAC slides are also displayed here as yellow lines. The auroral oval, the cusp and the dayside solar EUV enhancement are clearly seen as greenish regions.
The northern hemisphere height-integrated Pedersen conductivity is shown here. The scale is different from the previous Hall conductivity figure: red color now corresponds to about 12 mho.
MHD plasma temperature in keV in the Y=0 plane (noon-midnight meridian). The maximum temperature at this moment is about 1 keV. It occurs in the tail current sheet. Inside the innermost red circle (green area) the temperature has no meaning. The temperature is also enhanced in the cusp regions and in the dayside magnetopause region. The green box on the nightside magnetosphere is the simulation box of our previous semiglobal simulations. It extends from -20 to -6 in X and 0 to 5 in Z. The radius of the innermost red circle (the inner boundary of MHD) is 3.7 Earth radius. A typical magnetopause shape has been sketched by dark blue line (this line is not taken from the simulation).
Same as previous slide but the computational MHD octogrid is also displayed. This grid is independent of time.