1. A method for transforming PP mode data and PS mode data into an enhanced data representation of a subsurface region, the method comprising: obtaining seismic data having PP mode data and PS mode data; calculating a first series of seismic attributes describing variation in the PP mode data as associated with properties of the subsurface region; calculating a second series of seismic attributes describing variation in the PS mode data as associated with properties of the subsurface region; wherein attributes are selected and combined such that all attribute combinations in the first series are phase consistent with all attribute combinations in the second series; performing a refined alignment of at least a portion of the PP mode data to corresponding PS mode data, or the reverse, meaning an alignment in time based at least in part on the first series and the second series, thereby creating aligned PP and PS data volumes; and inverting the aligned data volumes to obtain a representation of the subsurface region.