\relax 
\@writefile{toc}{\contentsline {section}{\numberline {I}INTRODUCTION}{1}}
\@writefile{toc}{\contentsline {section}{\numberline {II}METHODOLOGY}{2}}
\@writefile{toc}{\contentsline {section}{\numberline {III}DATA ANALYSIS}{3}}
\@writefile{lof}{\contentsline {figure}{\numberline {1}{\ignorespaces  Longitudinal magnetogram (left panel), H$\alpha $ image (middle panel), and a map (right panel) of the shear angle change between 16:20 UT and 16:30 UT for the 2001 October 19 flare event occurred in AR 9661. The field of view is 120$''$ $\times $ 120$''$. The box marks the area for which the temporal change of transverse weighted shear angle was estimated by Wang et al.(2002). In the shear change map (right panel), bright areas represent the increase of shear and dark areas, the decrease of shear.}}{4}}
\@writefile{lof}{\contentsline {figure}{\numberline {2}{\ignorespaces  Temporal change of the weighted mean shear angle relative to the initial shear angle for the boxed area in Figure 1. The dotted line is what Wang et al.(2002) obtained using the potential method for the 180$\hbox {$^\circ $}$ ambiguity and the solid line is what we obtained from the present study. The dashed line corresponds to the temporal variation of weighted potential field, the last term of equation (8). }}{4}}
\@writefile{lof}{\contentsline {figure}{\numberline {3}{\ignorespaces Pair of longitudinal magnetograms (left two panels) taken before and after the X1.4 flare and a set of flux increase (third panel) and flux decrease (right panel) maps. The field of view is $300''\times 300''$. For both flux change maps, positive values (white) represent the positive polarity, and negative ones (black), the negative polarity. }}{5}}
\@writefile{toc}{\contentsline {section}{\numberline {IV}RESULTS}{5}}
\@writefile{toc}{\contentsline {section}{\numberline {V}SUMMARY AND DISCUSSION}{5}}
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