The
Demoulin & Berger Interpretation
of LCT
¥Degeneracy: Motions parallel
to B do not directly
affect apparent motion of
magnetic features.
¥Apparent horizontal motion ULCT is from a combination
of horizontal
motions and vertical
motions acting on
non-vertical fields.
Flows parallel to B donÕt
affect the motion of Magnetic Features. Therefore we
consider only flows normal to B, and set
v¥B=0.
This constraint, plus the Demoulin & Berger interpretation,
leads to this solution for v^ and vz: