We present the spatially resolved emission line ratio properties of a \sim 10 ^ { 10 } M _ { \odot } star-forming galaxy at redshift z = 1.03 .
This galaxy is gravitationally lensed as a triple-image giant arc behind the massive lensing cluster Abell 2667 .
The main image of the galaxy has magnification factors of 14 \pm 2.1 in flux and \sim 2 \times 7 in area , yielding an intrinsic spatial resolution of 115 - 405 pc after AO correction with OSIRIS at KECK II .
The HST morphology shows a clumpy structure and the H \alpha kinematics indicates a large velocity dispersion with V _ { max } { \it \sin { ( i ) } } / \sigma \sim 0.73 , consistent with high redshift disk galaxies of similar masses .
From the [ N ii ] /H \alpha line ratios , we find that the central 350 parsec of the galaxy is dominated by star formation .
The [ N ii ] /H \alpha line ratios are higher in the outer-disk than in the central regions .
Most noticeably , we find a blue-shifted region of strong [ N ii ] /H \alpha emission in the outer disk .
Applying our recent H ii region and slow-shock models , we propose that this elevated [ N ii ] /H \alpha ratio region is contaminated by a significant fraction of shock excitation due to galactic outflows .
Our analysis suggests that shocked regions may mimic flat or inverted metallicity gradients at high redshift .