  Understanding the structure, formation and evolution of the Galactic Bulge
requires the proper determination of spatial metallicity gradients in both the
radial and vertical directions. RR Lyrae pulsators, known to be excellent
distance indicators, may hold the key to determining these gradients. Jurcsik &
Kovacs (1996) has shown that RR Lyrae light curves and the phase difference of
their Fourier decomposition, {\phi}31, can be used to estimate photometric
metallicities. The existence of galactic bulge metallicity gradients is a
currently debated topic that would help pinpoint the Galaxy's formation and
evolution. A recent study of the OGLE-III Galactic Bulge RR Lyrae Population by
Pietrukowicz et al. (2012) suggests that the spatial distribution is uniform.
We investigate how small a gradient would be detectable within the current S/N
levels of the present data set, given the random and systematic errors
associated with the derivation of a photometric metallicity versus spatial
position relationship.
