  The atom localization of a V-type atomic system is discussed by the detunings
associated with the probe and the two orthogonal standing-wave fields, and by
the spontaneously generated coherence (SGC). Within the half-wavelength domain
in the 2-dimensional(2-D) plane, the atom localization depicted by the probe
dual absorption peaks is achieved when the detunings are tuned. However, the
dual peaks change into single-peak when the SGC arises. The single-peak 2-D
localization demonstrated the advantage for atom localization achieved by the
flexible manipulating parameters in our scheme.
